AgentPay x402 Trust Oracle

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "asset": "USDC",
  "error": "Payment required",
  "pay_to": "GB7THTEVT2T7CZQ5TFUOIQSI32XCJ7BHWS35OBTAI2V4FNL7BXZZ2GM2",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2",
        "assetTransferMethod": "eip3009"
      },
      "payTo": "0xE8B25A72dD6aeF69515452a61AD231C7DF2843b7",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://agentpay.tools/tools/verified_route/call",
      "description": "Paid buyer-side trust oracle: 'I need X, budget $Y — which x402 tool is real?' Sweeps the WHOLE x402 marketplace across many queries (a single search shows only a slice), collapses sybil/factory clusters (one wallet stamping many fake-distinct listings → one entry), ranks the genuinely-used survivors by real unique-payer usage, and returns ONE vetted recommendation with a ready-to-pay x402 challenge. The credit-bureau check an agent cannot do itself in one query — pay $0.01 to avoid paying a scam or a dead stub.",
      "maxAmountRequired": "10000",
      "maxTimeoutSeconds": 300
    }
  ],
  "network": "mainnet",
  "resource": {
    "url": "https://agentpay.tools/tools/verified_route/call",
    "tags": [
      "routing",
      "discovery",
      "trust",
      "trust-oracle",
      "sybil-detection"
    ],
    "mimeType": "application/json",
    "description": "Buyer-side trust oracle for the x402 marketplace: 'I need X, budget $Y — which tool is real?' Sweeps the WHOLE catalog across many queries, collapses sybil/factory clusters (one wallet stamping many fake-distinct listings), ranks the genuinely-used survivors by unique-payer usage, and returns one vetted pick with a ready-to-pay challenge. The credit-bureau check an agent can't do in a single query.",
    "serviceName": "AgentPay x402 Trust Oracle"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "parameters": {
              "need": "dex pair liquidity",
              "chain": "",
              "budget_usd": 1
            }
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "errors": [
          {
            "body": {
              "error": "<summary>",
              "reason": "<machine-readable reason>"
            },
            "when": "No payment attached (this challenge), or the attached payment failed verification: wrong amount/recipient, memo mismatch, expired, or already used (replay)",
            "retry": "Re-request the challenge and pay again",
            "status": 402
          },
          {
            "body": {
              "detail": [
                {
                  "loc": [
                    "body"
                  ],
                  "msg": "<what is wrong>",
                  "type": "<error type>"
                }
              ]
            },
            "when": "Request body present but malformed (invalid JSON or wrong field types) WITH a payment header attached — checked BEFORE settlement, so the payment is never consumed. An unpaid malformed request gets the 402, not a 422",
            "retry": "Fix the body and retry with a fresh payment",
            "status": 422
          },
          {
            "body": {
              "detail": "Tool '<name>' not found"
            },
            "when": "Unknown tool name",
            "status": 404
          },
          {
            "body": {
              "error": "Rate limit exceeded"
            },
            "when": "Rate limited (per-IP and per-wallet limits)",
            "retry": "Back off and retry after a minute",
            "status": 429
          },
          {
            "body": {
              "tool": "<name>",
              "error": "Tool execution failed",
              "payment_status": "refund_pending"
            },
            "when": "Payment settled on-chain but tool execution failed — the payment is marked refund_pending automatically; you are not charged for a failed call",
            "status": 500
          },
          {
            "body": {
              "detail": "<what is unavailable>"
            },
            "when": "Tool temporarily unavailable, or the gateway cannot persist the challenge (fail-closed)",
            "retry": "Retry shortly",
            "status": 503
          }
        ],
        "output": {
          "type": "json",
          "example": {
            "need": "dex pair liquidity",
            "catalog": {
              "scanned": 117,
              "real_providers": 41,
              "biggest_factory": {
                "pay_to": "0x2bb72231eed3",
                "listings": 72
              },
              "sybil_collapsed": 73
            },
            "vetting": "swept 17 queries → 117 listings → collapsed 73 sybil listings → 41 real providers",
            "recommendation": {
              "url": "https://otto.example/dex",
              "name": "Otto AI",
              "network": "eip155:8453",
              "quality": 3851,
              "calls30d": 3246,
              "payers30d": 200,
              "price_usd": "0.001",
              "ready_to_pay": {
                "url": "https://otto.example/dex",
                "accepts": {
                  "scheme": "exact",
                  "network": "eip155:8453"
                },
                "network": "eip155:8453"
              }
            }
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "bodyType",
              "body",
              "method"
            ],
            "properties": {
              "body": {
                "type": "object",
                "properties": {
                  "parameters": {
                    "type": "object",
                    "required": [
                      "need"
                    ],
                    "properties": {
                      "need": {
                        "type": "string",
                        "description": "What the agent needs, e.g. 'dex pair liquidity', 'crypto prices'"
                      },
                      "chain": {
                        "type": "string",
                        "description": "Optional chain filter: 'base', 'arbitrum', 'solana'. Empty = all chains. Solana picks are discovery-only (probe coverage: Base only — on-chain delivery unverified)"
                      },
                      "budget_usd": {
                        "type": "number",
                        "description": "Max USDC to pay the downstream tool per call (default 1)"
                      }
                    }
                  }
                }
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "POST"
                ],
                "type": "string"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      },
      "description": "Vet before you pay a stranger: sweep the x402 catalog, collapse sybil/factory listings, rank real providers by usage, and return ONE recommendation under budget with a ready-to-pay x402 challenge + a catalog dossier (scanned / real_providers / sybil_collapsed / biggest_factory)."
    }
  },
  "payment_id": "ccd1dbe7-febe-414e-95c5-182a1d95dac4",
  "amount_usdc": "0.01",
  "x402Version": 2,
  "instructions": "[Stellar] Send 0.01 USDC to GB7THTEVT2T7CZQ5TFUOIQSI32XCJ7BHWS35OBTAI2V4FNL7BXZZ2GM2 on Stellar mainnet with text memo: ccd1dbe7-febe-414e-95c5-182a (the payment_id's first 28 bytes — a Stellar text memo cannot hold more). Retry with X-Payment: tx_hash=<hash>,from=<addr>,id=ccd1dbe7-febe-414e-95c5-182a1d95dac4. No Stellar wallet? Get a free funded testnet wallet instantly: https://agentpay.tools/faucet",
  "payment_options": {
    "base": {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "pay_to": "0xE8B25A72dD6aeF69515452a61AD231C7DF2843b7",
      "scheme": "exact",
      "network": "eip155:8453",
      "amount_usdc": "0.01",
      "instructions": "Sign an EIP-3009 transferWithAuthorization for the amount above, encode as base64 JSON PaymentPayload, and retry with header PAYMENT-SIGNATURE: <base64_payload>",
      "amount_atomic": "10000",
      "maxTimeoutSeconds": 300
    },
    "stacks": {
      "asset": "sbtc",
      "header": "payment-signature: <base64(StacksPaymentPayload JSON)>",
      "pay_to": "SP23XKWSEQ9D4CVPT0H39N2TYVEE5AJECPKW6CZ3C",
      "scheme": "exact",
      "network": "stacks:1",
      "amount_sats": 12,
      "amount_usdc": "0.01",
      "btc_usd_rate": "84564",
      "fee_microstx": 3000
    },
    "stellar": {
      "memo": "ccd1dbe7-febe-414e-95c5-182a",
      "note": "Classic Stellar payment + text memo (the payment_id's first 28 bytes, which is all a text memo holds), verified via Horizon — not the standard @x402/stellar Soroban scheme. Pay with the AgentPay SDK (pip install agentpay-x402) or manually per instructions.",
      "asset": "USDC",
      "header": "X-Payment: tx_hash=<hash>,from=<addr>,id=ccd1dbe7-febe-414e-95c5-182a1d95dac4",
      "pay_to": "GB7THTEVT2T7CZQ5TFUOIQSI32XCJ7BHWS35OBTAI2V4FNL7BXZZ2GM2",
      "scheme": "agentpay-classic-memo",
      "network": "mainnet",
      "payment_id": "ccd1dbe7-febe-414e-95c5-182a1d95dac4",
      "amount_usdc": "0.01"
    }
  }
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "assetTransferMethod": "eip3009"
    },
    "payTo": "0xE8B25A72dD6aeF69515452a61AD231C7DF2843b7",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://agentpay.tools/tools/verified_route/call",
    "description": "Paid buyer-side trust oracle: 'I need X, budget $Y — which x402 tool is real?' Sweeps the WHOLE x402 marketplace across many queries (a single search shows only a slice), collapses sybil/factory clusters (one wallet stamping many fake-distinct listings → one entry), ranks the genuinely-used survivors by real unique-payer usage, and returns ONE vetted recommendation with a ready-to-pay x402 challenge. The credit-bureau check an agent cannot do itself in one query — pay $0.01 to avoid paying a scam or a dead stub.",
    "outputSchema": {
      "input": {
        "type": "object",
        "required": [
          "need"
        ],
        "properties": {
          "need": {
            "type": "string",
            "description": "What the agent needs, e.g. 'dex pair liquidity', 'crypto prices'"
          },
          "chain": {
            "type": "string",
            "default": "",
            "description": "Optional chain filter: 'base', 'arbitrum', 'arbitrum-stack'. Empty = all chains."
          },
          "budget_usd": {
            "type": "number",
            "default": 1,
            "description": "Max USDC the agent will pay the downstream tool per call"
          }
        }
      },
      "errors": [
        {
          "body": {
            "error": "<summary>",
            "reason": "<machine-readable reason>"
          },
          "when": "No payment attached (this challenge), or the attached payment failed verification: wrong amount/recipient, memo mismatch, expired, or already used (replay)",
          "retry": "Re-request the challenge and pay again",
          "status": 402
        },
        {
          "body": {
            "detail": [
              {
                "loc": [
                  "body"
                ],
                "msg": "<what is wrong>",
                "type": "<error type>"
              }
            ]
          },
          "when": "Request body present but malformed (invalid JSON or wrong field types) WITH a payment header attached — checked BEFORE settlement, so the payment is never consumed. An unpaid malformed request gets the 402, not a 422",
          "retry": "Fix the body and retry with a fresh payment",
          "status": 422
        },
        {
          "body": {
            "detail": "Tool '<name>' not found"
          },
          "when": "Unknown tool name",
          "status": 404
        },
        {
          "body": {
            "error": "Rate limit exceeded"
          },
          "when": "Rate limited (per-IP and per-wallet limits)",
          "retry": "Back off and retry after a minute",
          "status": 429
        },
        {
          "body": {
            "tool": "<name>",
            "error": "Tool execution failed",
            "payment_status": "refund_pending"
          },
          "when": "Payment settled on-chain but tool execution failed — the payment is marked refund_pending automatically; you are not charged for a failed call",
          "status": 500
        },
        {
          "body": {
            "detail": "<what is unavailable>"
          },
          "when": "Tool temporarily unavailable, or the gateway cannot persist the challenge (fail-closed)",
          "retry": "Retry shortly",
          "status": 503
        }
      ],
      "output": {
        "need": "dex pair liquidity",
        "chain": null,
        "catalog": {
          "scanned": 117,
          "after_vetting": 114,
          "real_providers": 41,
          "unique_wallets": 38,
          "biggest_factory": {
            "pay_to": "0x2bb72231eed3",
            "listings": 72
          },
          "sybil_collapsed": 73
        },
        "vetting": "swept 17 queries → 117 listings → collapsed 73 sybil listings → 41 real providers",
        "survivors": [],
        "budget_usd": "1",
        "recommendation": {
          "url": "https://otto.example/dex",
          "name": "Otto AI",
          "flags": [],
          "pay_to": "0x0e84ddedaae6a7",
          "network": "eip155:8453",
          "quality": 3851,
          "calls30d": 3246,
          "payers30d": 200,
          "price_usd": "0.001",
          "ready_to_pay": {
            "url": "https://otto.example/dex",
            "accepts": {
              "scheme": "exact",
              "network": "eip155:8453"
            },
            "network": "eip155:8453",
            "price_usd": "0.001"
          }
        }
      }
    },
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "parameters": {
            "need": "dex pair liquidity",
            "chain": "",
            "budget_usd": 1
          }
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "errors": [
        {
          "body": {
            "error": "<summary>",
            "reason": "<machine-readable reason>"
          },
          "when": "No payment attached (this challenge), or the attached payment failed verification: wrong amount/recipient, memo mismatch, expired, or already used (replay)",
          "retry": "Re-request the challenge and pay again",
          "status": 402
        },
        {
          "body": {
            "detail": [
              {
                "loc": [
                  "body"
                ],
                "msg": "<what is wrong>",
                "type": "<error type>"
              }
            ]
          },
          "when": "Request body present but malformed (invalid JSON or wrong field types) WITH a payment header attached — checked BEFORE settlement, so the payment is never consumed. An unpaid malformed request gets the 402, not a 422",
          "retry": "Fix the body and retry with a fresh payment",
          "status": 422
        },
        {
          "body": {
            "detail": "Tool '<name>' not found"
          },
          "when": "Unknown tool name",
          "status": 404
        },
        {
          "body": {
            "error": "Rate limit exceeded"
          },
          "when": "Rate limited (per-IP and per-wallet limits)",
          "retry": "Back off and retry after a minute",
          "status": 429
        },
        {
          "body": {
            "tool": "<name>",
            "error": "Tool execution failed",
            "payment_status": "refund_pending"
          },
          "when": "Payment settled on-chain but tool execution failed — the payment is marked refund_pending automatically; you are not charged for a failed call",
          "status": 500
        },
        {
          "body": {
            "detail": "<what is unavailable>"
          },
          "when": "Tool temporarily unavailable, or the gateway cannot persist the challenge (fail-closed)",
          "retry": "Retry shortly",
          "status": 503
        }
      ],
      "output": {
        "type": "json",
        "example": {
          "need": "dex pair liquidity",
          "catalog": {
            "scanned": 117,
            "real_providers": 41,
            "biggest_factory": {
              "pay_to": "0x2bb72231eed3",
              "listings": 72
            },
            "sybil_collapsed": 73
          },
          "vetting": "swept 17 queries → 117 listings → collapsed 73 sybil listings → 41 real providers",
          "recommendation": {
            "url": "https://otto.example/dex",
            "name": "Otto AI",
            "network": "eip155:8453",
            "quality": 3851,
            "calls30d": 3246,
            "payers30d": 200,
            "price_usd": "0.001",
            "ready_to_pay": {
              "url": "https://otto.example/dex",
              "accepts": {
                "scheme": "exact",
                "network": "eip155:8453"
              },
              "network": "eip155:8453"
            }
          }
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "bodyType",
            "body",
            "method"
          ],
          "properties": {
            "body": {
              "type": "object",
              "properties": {
                "parameters": {
                  "type": "object",
                  "required": [
                    "need"
                  ],
                  "properties": {
                    "need": {
                      "type": "string",
                      "description": "What the agent needs, e.g. 'dex pair liquidity', 'crypto prices'"
                    },
                    "chain": {
                      "type": "string",
                      "description": "Optional chain filter: 'base', 'arbitrum', 'solana'. Empty = all chains. Solana picks are discovery-only (probe coverage: Base only — on-chain delivery unverified)"
                    },
                    "budget_usd": {
                      "type": "number",
                      "description": "Max USDC to pay the downstream tool per call (default 1)"
                    }
                  }
                }
              }
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    },
    "description": "Vet before you pay a stranger: sweep the x402 catalog, collapse sybil/factory listings, rank real providers by usage, and return ONE recommendation under budget with a ready-to-pay x402 challenge + a catalog dossier (scanned / real_providers / sybil_collapsed / biggest_factory)."
  }
}

Provenance

Seen in the source catalog

2026-09-09 21:57Z

Last indexed by Roundhouse

2026-09-24 13:30Z

Last enriched (probe, favicon, geo)

2026-09-21 11:15Z

x402 version

2

Max timeout

300s

Liveness probe

HTTP 402