{
  "endpoints": [
    {
      "determinism": {
        "level": "low",
        "notes": "Model/provider inference output can vary across runs, seeds, and upstream model revisions."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "embeddings",
        "face-swap"
      ],
      "final_cost": {
        "amount": 0.005,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "code-run",
      "idempotency": "non_idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 1800,
        "p95_ms": 9000,
        "timeout_ms": 45000
      },
      "method": "POST",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/code/run",
      "price": "$0.005",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "high",
        "notes": "Read-only retrieval endpoint; response may vary with market/provider freshness."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "crypto-markets",
        "crypto-price"
      ],
      "final_cost": {
        "amount": 0.003,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "crypto-history",
      "idempotency": "idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 250,
        "p95_ms": 1200,
        "timeout_ms": 10000
      },
      "method": "GET",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/crypto/history",
      "price": "$0.003",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "high",
        "notes": "Read-only retrieval endpoint; response may vary with market/provider freshness."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "crypto-history",
        "crypto-price"
      ],
      "final_cost": {
        "amount": 0.002,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "crypto-markets",
      "idempotency": "idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 250,
        "p95_ms": 1200,
        "timeout_ms": 10000
      },
      "method": "GET",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/crypto/markets",
      "price": "$0.002",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "high",
        "notes": "Read-only retrieval endpoint; response may vary with market/provider freshness."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "crypto-markets",
        "token-prices"
      ],
      "final_cost": {
        "amount": 0.001,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "crypto-price",
      "idempotency": "idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 250,
        "p95_ms": 1200,
        "timeout_ms": 10000
      },
      "method": "GET",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/crypto/price",
      "price": "$0.001",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "high",
        "notes": "Read-only retrieval endpoint; response may vary with market/provider freshness."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "crypto-history",
        "crypto-markets"
      ],
      "final_cost": {
        "amount": 0.001,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "crypto-search",
      "idempotency": "idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 250,
        "p95_ms": 1200,
        "timeout_ms": 10000
      },
      "method": "GET",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/crypto/search",
      "price": "$0.001",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "high",
        "notes": "Read-only retrieval endpoint; response may vary with market/provider freshness."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "crypto-history",
        "crypto-markets"
      ],
      "final_cost": {
        "amount": 0.001,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "crypto-trending",
      "idempotency": "idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 250,
        "p95_ms": 1200,
        "timeout_ms": 10000
      },
      "method": "GET",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/crypto/trending",
      "price": "$0.001",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "high",
        "notes": "Read-only query with POST body for richer filters; deterministic for same upstream snapshot."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "code-run",
        "face-swap"
      ],
      "final_cost": {
        "amount": 0.001,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "embeddings",
      "idempotency": "idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 350,
        "p95_ms": 1800,
        "timeout_ms": 12000
      },
      "method": "POST",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/embeddings",
      "price": "$0.001",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "high",
        "notes": "Read-only retrieval endpoint; response may vary with market/provider freshness."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "crypto-history",
        "crypto-markets"
      ],
      "final_cost": {
        "amount": 0.001,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "ens-resolve",
      "idempotency": "idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 250,
        "p95_ms": 1200,
        "timeout_ms": 10000
      },
      "method": "GET",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/ens/resolve",
      "price": "$0.001",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "high",
        "notes": "Read-only retrieval endpoint; response may vary with market/provider freshness."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "crypto-history",
        "crypto-markets"
      ],
      "final_cost": {
        "amount": 0.001,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "ens-reverse",
      "idempotency": "idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 250,
        "p95_ms": 1200,
        "timeout_ms": 10000
      },
      "method": "GET",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/ens/reverse",
      "price": "$0.001",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "low",
        "notes": "Model/provider inference output can vary across runs, seeds, and upstream model revisions."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "code-run",
        "embeddings"
      ],
      "final_cost": {
        "amount": 0.08,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "face-swap",
      "idempotency": "non_idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 1800,
        "p95_ms": 9000,
        "timeout_ms": 45000
      },
      "method": "POST",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/image/face-swap",
      "price": "$0.08",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "low",
        "notes": "Model/provider inference output can vary across runs, seeds, and upstream model revisions."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "code-run",
        "embeddings"
      ],
      "final_cost": {
        "amount": 0.015,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "image-fast",
      "idempotency": "non_idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 1800,
        "p95_ms": 9000,
        "timeout_ms": 45000
      },
      "method": "POST",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/image/fast",
      "price": "$0.015",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "low",
        "notes": "Model/provider inference output can vary across runs, seeds, and upstream model revisions."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "code-run",
        "embeddings"
      ],
      "final_cost": {
        "amount": 0.1,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "image-nano-banana",
      "idempotency": "non_idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 1800,
        "p95_ms": 9000,
        "timeout_ms": 45000
      },
      "method": "POST",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/image/nano-banana",
      "price": "$0.10",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "low",
        "notes": "Model/provider inference output can vary across runs, seeds, and upstream model revisions."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "code-run",
        "embeddings"
      ],
      "final_cost": {
        "amount": 0.05,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "image-quality",
      "idempotency": "non_idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 1800,
        "p95_ms": 9000,
        "timeout_ms": 45000
      },
      "method": "POST",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/image/quality",
      "price": "$0.05",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "low",
        "notes": "Model/provider inference output can vary across runs, seeds, and upstream model revisions."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "code-run",
        "embeddings"
      ],
      "final_cost": {
        "amount": 0.12,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "image-text",
      "idempotency": "non_idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 1800,
        "p95_ms": 9000,
        "timeout_ms": 45000
      },
      "method": "POST",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/image/text",
      "price": "$0.12",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "high",
        "notes": "Read-only retrieval endpoint; response may vary with market/provider freshness."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "ipfs-pin"
      ],
      "final_cost": {
        "amount": 0.001,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "ipfs-get",
      "idempotency": "idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 250,
        "p95_ms": 1200,
        "timeout_ms": 10000
      },
      "method": "GET",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/ipfs/get",
      "price": "$0.001",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "medium",
        "notes": "Pinned content and resulting CIDs are stable for identical payloads, but provider behavior may vary."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "ipfs-get"
      ],
      "final_cost": {
        "amount": 0.01,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "ipfs-pin",
      "idempotency": "conditionally_idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 700,
        "p95_ms": 4000,
        "timeout_ms": 20000
      },
      "method": "POST",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/ipfs/pin",
      "price": "$0.01",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "low",
        "notes": "Model/provider inference output can vary across runs, seeds, and upstream model revisions."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "code-run",
        "embeddings"
      ],
      "final_cost": {
        "amount": 0.012,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "llm-aion-3.0",
      "idempotency": "non_idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 1800,
        "p95_ms": 9000,
        "timeout_ms": 45000
      },
      "method": "POST",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/llm/aion-3.0",
      "price": "$0.012",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "low",
        "notes": "Model/provider inference output can vary across runs, seeds, and upstream model revisions."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "code-run",
        "embeddings"
      ],
      "final_cost": {
        "amount": 0.004,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "llm-aion-3.0-mini",
      "idempotency": "non_idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 1800,
        "p95_ms": 9000,
        "timeout_ms": 45000
      },
      "method": "POST",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/llm/aion-3.0-mini",
      "price": "$0.004",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "low",
        "notes": "Model/provider inference output can vary across runs, seeds, and upstream model revisions."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "code-run",
        "embeddings"
      ],
      "final_cost": {
        "amount": 0.02,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "llm-claude-haiku",
      "idempotency": "non_idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 1800,
        "p95_ms": 9000,
        "timeout_ms": 45000
      },
      "method": "POST",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/llm/claude-haiku",
      "price": "$0.02",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "low",
        "notes": "Model/provider inference output can vary across runs, seeds, and upstream model revisions."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "code-run",
        "embeddings"
      ],
      "final_cost": {
        "amount": 0.09,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "llm-claude-opus",
      "idempotency": "non_idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 1800,
        "p95_ms": 9000,
        "timeout_ms": 45000
      },
      "method": "POST",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/llm/claude-opus",
      "price": "$0.09",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "low",
        "notes": "Model/provider inference output can vary across runs, seeds, and upstream model revisions."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "code-run",
        "embeddings"
      ],
      "final_cost": {
        "amount": 0.09,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "llm-claude-opus-4.5",
      "idempotency": "non_idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 1800,
        "p95_ms": 9000,
        "timeout_ms": 45000
      },
      "method": "POST",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/llm/claude-opus-4.5",
      "price": "$0.09",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "low",
        "notes": "Model/provider inference output can vary across runs, seeds, and upstream model revisions."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "code-run",
        "embeddings"
      ],
      "final_cost": {
        "amount": 0.09,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "llm-claude-opus-4.8",
      "idempotency": "non_idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 1800,
        "p95_ms": 9000,
        "timeout_ms": 45000
      },
      "method": "POST",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/llm/claude-opus-4.8",
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      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "low",
        "notes": "Model/provider inference output can vary across runs, seeds, and upstream model revisions."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "code-run",
        "embeddings"
      ],
      "final_cost": {
        "amount": 0.07,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "llm-claude-opus-5",
      "idempotency": "non_idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 1800,
        "p95_ms": 9000,
        "timeout_ms": 45000
      },
      "method": "POST",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/llm/claude-opus-5",
      "price": "$0.07",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
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        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
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          "http_status": 429,
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        {
          "code": "rate_limited",
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          "http_status": 429,
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          "code": "upstream_unavailable",
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        {
          "code": "rate_limited",
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          "http_status": 429,
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        {
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          "http_status": 429,
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        {
          "code": "rate_limited",
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          "http_status": 429,
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        {
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          "code": "rate_limited",
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          "http_status": 429,
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        {
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      "id": "search-contents",
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        "p50_ms": 1800,
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    },
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          "code": "rate_limited",
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          "http_status": 429,
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    },
    {
      "determinism": {
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      },
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        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "crypto-history",
        "crypto-markets"
      ],
      "final_cost": {
        "amount": 0.002,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "token-metadata",
      "idempotency": "idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 250,
        "p95_ms": 1200,
        "timeout_ms": 10000
      },
      "method": "GET",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
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        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
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        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "high",
        "notes": "Read-only query with POST body for richer filters; deterministic for same upstream snapshot."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "crypto-history",
        "crypto-markets"
      ],
      "final_cost": {
        "amount": 0.005,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "token-prices",
      "idempotency": "idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
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        "p50_ms": 350,
        "p95_ms": 1800,
        "timeout_ms": 12000
      },
      "method": "POST",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
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        "contact": "support@x402engine.app",
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    },
    {
      "determinism": {
        "level": "low",
        "notes": "Model/provider inference output can vary across runs, seeds, and upstream model revisions."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
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      ],
      "fallback_equivalents": [
        "code-run",
        "embeddings"
      ],
      "final_cost": {
        "amount": 0.1,
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        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "transcribe",
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      "last_verified_at": "2026-02-25T00:00:00Z",
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        "p50_ms": 1800,
        "p95_ms": 9000,
        "timeout_ms": 45000
      },
      "method": "POST",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
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    },
    {
      "determinism": {
        "level": "high",
        "notes": "Read-only retrieval endpoint; response may vary with market/provider freshness."
      },
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          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
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      ],
      "fallback_equivalents": [
        "travel-hotels"
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        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "travel-flights",
      "idempotency": "idempotent",
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        "p50_ms": 250,
        "p95_ms": 1200,
        "timeout_ms": 10000
      },
      "method": "GET",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
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        "contact": "support@x402engine.app",
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    },
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          "description": "Input validation failed for request payload/query.",
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          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "travel-flights"
      ],
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        "amount": 0.02,
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        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "travel-hotels",
      "idempotency": "idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 250,
        "p95_ms": 1200,
        "timeout_ms": 10000
      },
      "method": "GET",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
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        "contact": "support@x402engine.app",
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        "target_pct": 99.5,
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      }
    },
    {
      "determinism": {
        "level": "low",
        "notes": "Model/provider inference output can vary across runs, seeds, and upstream model revisions."
      },
      "error_taxonomy": [
        {
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          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "code-run",
        "embeddings"
      ],
      "final_cost": {
        "amount": 0.02,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "tts-elevenlabs",
      "idempotency": "non_idempotent",
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      "latency": {
        "p50_ms": 1800,
        "p95_ms": 9000,
        "timeout_ms": 45000
      },
      "method": "POST",
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        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
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        "window_days": 30
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    },
    {
      "determinism": {
        "level": "low",
        "notes": "Model/provider inference output can vary across runs, seeds, and upstream model revisions."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
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      ],
      "fallback_equivalents": [
        "code-run",
        "embeddings"
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      "final_cost": {
        "amount": 0.02,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "tts-lux",
      "idempotency": "non_idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 1800,
        "p95_ms": 9000,
        "timeout_ms": 45000
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      "network_support": [
        "eip155:4326",
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        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
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      "refund_policy": {
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        "sla_hours": 24
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        "target_pct": 99.5,
        "window_days": 30
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    },
    {
      "determinism": {
        "level": "low",
        "notes": "Model/provider inference output can vary across runs, seeds, and upstream model revisions."
      },
      "error_taxonomy": [
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          "http_status": 400,
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          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
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        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
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          "code": "upstream_unavailable",
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        "embeddings"
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        "currency": "USD",
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        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
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      "id": "tts-openai",
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      "last_verified_at": "2026-02-25T00:00:00Z",
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        "p50_ms": 1800,
        "p95_ms": 9000,
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    },
    {
      "determinism": {
        "level": "medium",
        "notes": "Simulation depends on latest mempool/state and node implementation details."
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      "error_taxonomy": [
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          "code": "rate_limited",
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          "http_status": 429,
          "retryable": true
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          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
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      "fallback_equivalents": [
        "crypto-history",
        "crypto-markets"
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        "amount": 0.01,
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        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
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      "id": "tx-simulate",
      "idempotency": "idempotent",
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      "latency": {
        "p50_ms": 350,
        "p95_ms": 1800,
        "timeout_ms": 12000
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          "description": "Payment header missing or underpaid for this route.",
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        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
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          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
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        "embeddings"
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      "final_cost": {
        "amount": 0.7,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "video-animate",
      "idempotency": "non_idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
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        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
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        "target_pct": 99.5,
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    },
    {
      "determinism": {
        "level": "low",
        "notes": "Model/provider inference output can vary across runs, seeds, and upstream model revisions."
      },
      "error_taxonomy": [
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          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
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        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
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      "fallback_equivalents": [
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      "final_cost": {
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    },
    {
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        "level": "low",
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          "description": "Payment header missing or underpaid for this route.",
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        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
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        {
          "code": "upstream_unavailable",
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      "fallback_equivalents": [
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        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
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      "id": "video-hailuo",
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      ],
      "path": "/api/video/hailuo",
      "price": "$0.65",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "low",
        "notes": "Model/provider inference output can vary across runs, seeds, and upstream model revisions."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "code-run",
        "embeddings"
      ],
      "final_cost": {
        "amount": 0.7,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "video-quality",
      "idempotency": "non_idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 1800,
        "p95_ms": 9000,
        "timeout_ms": 45000
      },
      "method": "POST",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/video/quality",
      "price": "$0.70",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "high",
        "notes": "Read-only query with POST body for richer filters; deterministic for same upstream snapshot."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "wallet-pnl",
        "wallet-transactions"
      ],
      "final_cost": {
        "amount": 0.005,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "wallet-balances",
      "idempotency": "idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 350,
        "p95_ms": 1800,
        "timeout_ms": 12000
      },
      "method": "POST",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/wallet/balances",
      "price": "$0.005",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "high",
        "notes": "Read-only query with POST body for richer filters; deterministic for same upstream snapshot."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "crypto-history",
        "crypto-markets"
      ],
      "final_cost": {
        "amount": 0.01,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "wallet-pnl",
      "idempotency": "idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 350,
        "p95_ms": 1800,
        "timeout_ms": 12000
      },
      "method": "POST",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/wallet/pnl",
      "price": "$0.01",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "high",
        "notes": "Read-only query with POST body for richer filters; deterministic for same upstream snapshot."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "crypto-history",
        "crypto-markets"
      ],
      "final_cost": {
        "amount": 0.005,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "wallet-transactions",
      "idempotency": "idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 350,
        "p95_ms": 1800,
        "timeout_ms": 12000
      },
      "method": "POST",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/wallet/transactions",
      "price": "$0.005",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "high",
        "notes": "Read-only retrieval endpoint; response may vary with market/provider freshness."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "search-contents",
        "search-web"
      ],
      "final_cost": {
        "amount": 0.005,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "web-scrape",
      "idempotency": "idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 250,
        "p95_ms": 1200,
        "timeout_ms": 10000
      },
      "method": "GET",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/web/scrape",
      "price": "$0.005",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    },
    {
      "determinism": {
        "level": "high",
        "notes": "Read-only retrieval endpoint; response may vary with market/provider freshness."
      },
      "error_taxonomy": [
        {
          "code": "bad_request",
          "description": "Input validation failed for request payload/query.",
          "http_status": 400,
          "retryable": false
        },
        {
          "code": "payment_required",
          "description": "Payment header missing or underpaid for this route.",
          "http_status": 402,
          "retryable": false
        },
        {
          "code": "rate_limited",
          "description": "Rate limit reached; wait and retry.",
          "http_status": 429,
          "retryable": true
        },
        {
          "code": "upstream_unavailable",
          "description": "Provider unavailable or timed out; retry with backoff or fallback endpoint.",
          "http_status": 503,
          "retryable": true
        }
      ],
      "fallback_equivalents": [
        "search-contents",
        "search-web"
      ],
      "final_cost": {
        "amount": 0.01,
        "currency": "USD",
        "includes_network_fees": false,
        "model": "flat",
        "notes": "Flat per-request endpoint fee; excludes L1/L2 settlement gas paid separately by payer."
      },
      "id": "web-screenshot",
      "idempotency": "idempotent",
      "last_verified_at": "2026-02-25T00:00:00Z",
      "latency": {
        "p50_ms": 250,
        "p95_ms": 1200,
        "timeout_ms": 10000
      },
      "method": "GET",
      "network_support": [
        "eip155:4326",
        "eip155:8453",
        "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
      ],
      "path": "/api/web/screenshot",
      "price": "$0.01",
      "refund_policy": {
        "contact": "support@x402engine.app",
        "policy": "Case-by-case refunds for provider outages, duplicate charges, or gateway faults.",
        "sla_hours": 24
      },
      "uptime_slo": {
        "target_pct": 99.5,
        "window_days": 30
      }
    }
  ],
  "examples": {
    "crypto-price": {
      "endpoint_id": "crypto-price",
      "request": {
        "method": "GET",
        "path": "/api/crypto/price?ids=bitcoin,ethereum&currencies=usd"
      },
      "response": {
        "bitcoin": {
          "usd": 91234.12
        },
        "ethereum": {
          "usd": 4865.44
        }
      }
    },
    "wallet-balances": {
      "endpoint_id": "wallet-balances",
      "request": {
        "body": {
          "address": "0x7dd5Be069f2d2eAd75eC7C3423B116fF043c2629",
          "chain": "base"
        },
        "method": "POST",
        "path": "/api/wallet/balances"
      },
      "response": {
        "items": [
          {
            "address": "0x7dd5be069f2d2ead75ec7c3423b116ff043c2629",
            "chain": "base",
            "raw_balance": 125420000,
            "token": {
              "address": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
              "chain": "base",
              "decimals": 6,
              "info": {
                "name": "USD Coin",
                "symbol": "USDC"
              },
              "price": 1.0002,
              "type": "evm_erc20"
            }
          }
        ]
      }
    }
  },
  "generated_at": "2026-02-25T00:00:00Z",
  "manifest_id": "x402engine.agent-manifest.v1",
  "schema_version": "agent-manifest.v1",
  "service": {
    "base_url": "https://x402engine.app",
    "name": "x402engine"
  }
}