{
  "x402Version": 2,
  "id": 37868,
  "slug": "37868",
  "resource": "https://kya.lonestaroracle.xyz/check",
  "description": "KYA / counterparty check for a wallet (and optional name): OFAC + wallet risk + signed verdict",
  "type": "http",
  "serviceName": "KYACheck",
  "resourceType": "Travel",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0x52Ab53912D37759B2ad364f22dD06B16714b6C06",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "100000",
      "amountUsd": 0.1,
      "maxTimeoutSeconds": 300
    },
    {
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "3nmeVj5m9Uq2hSTfsVsn3tJMHRJQNMKR1AjzyUJbrSgw",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "amount": "100000",
      "amountUsd": 0.1,
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "properties": {
      "example": {
        "checked_at": "2026-09-24T17:00:00Z",
        "ofac_name": null,
        "ofac_wallet": {
          "currency": "ETH",
          "listed": true,
          "program": "CYBER2",
          "sdn_name": "EXAMPLE ENTITY"
        },
        "reasons": [
          "wallet is on the OFAC SDN list (EXAMPLE ENTITY, program CYBER2)"
        ],
        "receipt": {
          "receipt": {
            "checked_at": "2026-09-24T17:00:00Z",
            "service": "KYA Check",
            "verdict": "BLOCK"
          },
          "signature": {
            "alg": "secp256k1-eip191",
            "sig": "0x...",
            "signer": "0x54aB6b8Ddbedc057F230D1b78E6cd4677d304E18"
          }
        },
        "verdict": "BLOCK",
        "wallet_risk": {
          "chain": "base",
          "risk_flags": [
            "sanctioned"
          ],
          "risk_label": "critical",
          "risk_score": 10
        }
      },
      "type": {
        "type": "string"
      }
    },
    "required": [
      "type"
    ],
    "type": "object"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "method": "GET",
          "queryParams": {
            "chain": "base",
            "name": "OFAC",
            "wallet": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
          },
          "type": "http"
        },
        "output": {
          "example": {
            "checked_at": "2026-09-24T17:00:00Z",
            "ofac_name": null,
            "ofac_wallet": {
              "currency": "ETH",
              "listed": true,
              "program": "CYBER2",
              "sdn_name": "EXAMPLE ENTITY"
            },
            "reasons": [
              "wallet is on the OFAC SDN list (EXAMPLE ENTITY, program CYBER2)"
            ],
            "receipt": {
              "receipt": {
                "checked_at": "2026-09-24T17:00:00Z",
                "service": "KYA Check",
                "verdict": "BLOCK"
              },
              "signature": {
                "alg": "secp256k1-eip191",
                "sig": "0x...",
                "signer": "0x54aB6b8Ddbedc057F230D1b78E6cd4677d304E18"
              }
            },
            "verdict": "BLOCK",
            "wallet_risk": {
              "chain": "base",
              "risk_flags": [
                "sanctioned"
              ],
              "risk_label": "critical",
              "risk_score": 10
            }
          },
          "format": "json",
          "type": "object"
        }
      },
      "schema": {
        "category": "compliance",
        "description": "Know-your-agent (KYA) / counterparty check, made agent-callable. Before your agent pays, hires or trusts another agent, one x402 call screens that agent's wallet against the US Treasury OFAC SDN list - including the ~500 crypto addresses OFAC publishes, matched exactly - optionally screens its name/entity against the SDN and alternate-names lists, scores the wallet's on-chain risk (GoPlus address-security flags such as sanctioned, mixer, phishing, money laundering), and returns PASS / REVIEW / BLOCK with plain-language reasons. The verdict is signed as an LSO Receipt (secp256k1 / EIP-191) so the result can be verified independently and passed on-chain: ethers.verifyMessage must recover LSO's published signer. Compliance is checked off-chain; the verified result travels. $0.10 in USDC on Base or Solana via x402. Sources: OFAC SDN (refreshed daily), GoPlus, public RPC.",
        "name": "KYACheck",
        "properties": {
          "input": {
            "properties": {
              "method": {
                "enum": [
                  "GET",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              },
              "queryParams": {
                "properties": {
                  "chain": {
                    "default": "base",
                    "description": "EVM chain for on-chain risk: base, eth, arb, poly, bsc",
                    "title": "Chain",
                    "type": "string"
                  },
                  "name": {
                    "description": "Optional agent, company or person name to screen against OFAC",
                    "title": "Name",
                    "type": "string"
                  },
                  "wallet": {
                    "description": "Agent/counterparty wallet address (EVM 0x... or any OFAC-listed crypto address)",
                    "title": "Wallet",
                    "type": "string"
                  }
                },
                "type": "object"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "example": {
                "checked_at": "2026-09-24T17:00:00Z",
                "ofac_name": null,
                "ofac_wallet": {
                  "currency": "ETH",
                  "listed": true,
                  "program": "CYBER2",
                  "sdn_name": "EXAMPLE ENTITY"
                },
                "reasons": [
                  "wallet is on the OFAC SDN list (EXAMPLE ENTITY, program CYBER2)"
                ],
                "receipt": {
                  "receipt": {
                    "checked_at": "2026-09-24T17:00:00Z",
                    "service": "KYA Check",
                    "verdict": "BLOCK"
                  },
                  "signature": {
                    "alg": "secp256k1-eip191",
                    "sig": "0x...",
                    "signer": "0x54aB6b8Ddbedc057F230D1b78E6cd4677d304E18"
                  }
                },
                "verdict": "BLOCK",
                "wallet_risk": {
                  "chain": "base",
                  "risk_flags": [
                    "sanctioned"
                  ],
                  "risk_label": "critical",
                  "risk_score": 10
                }
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "tags": [
          "kya",
          "sanctions",
          "ofac",
          "compliance",
          "wallet-risk"
        ],
        "type": "object",
        "version": "1.0.0"
      }
    }
  },
  "tags": [
    "kya",
    "sanctions",
    "ofac",
    "compliance",
    "wallet-risk",
    "bazaar"
  ],
  "sourceHost": "kya.lonestaroracle.xyz",
  "lastUpdated": "2026-10-08T05:36:31.669Z",
  "quality": {
    "calls30d": 2,
    "uniquePayers30d": 2,
    "lastCalledAt": "2026-10-08T05:36:31.52Z"
  },
  "metadata": {
    "serviceName": "KYACheck",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "chain": "base",
              "name": "OFAC",
              "wallet": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "checked_at": "2026-09-24T17:00:00Z",
              "ofac_name": null,
              "ofac_wallet": {
                "currency": "ETH",
                "listed": true,
                "program": "CYBER2",
                "sdn_name": "EXAMPLE ENTITY"
              },
              "reasons": [
                "wallet is on the OFAC SDN list (EXAMPLE ENTITY, program CYBER2)"
              ],
              "receipt": {
                "receipt": {
                  "checked_at": "2026-09-24T17:00:00Z",
                  "service": "KYA Check",
                  "verdict": "BLOCK"
                },
                "signature": {
                  "alg": "secp256k1-eip191",
                  "sig": "0x...",
                  "signer": "0x54aB6b8Ddbedc057F230D1b78E6cd4677d304E18"
                }
              },
              "verdict": "BLOCK",
              "wallet_risk": {
                "chain": "base",
                "risk_flags": [
                  "sanctioned"
                ],
                "risk_label": "critical",
                "risk_score": 10
              }
            },
            "format": "json",
            "type": "object"
          }
        },
        "schema": {
          "category": "compliance",
          "description": "Know-your-agent (KYA) / counterparty check, made agent-callable. Before your agent pays, hires or trusts another agent, one x402 call screens that agent's wallet against the US Treasury OFAC SDN list - including the ~500 crypto addresses OFAC publishes, matched exactly - optionally screens its name/entity against the SDN and alternate-names lists, scores the wallet's on-chain risk (GoPlus address-security flags such as sanctioned, mixer, phishing, money laundering), and returns PASS / REVIEW / BLOCK with plain-language reasons. The verdict is signed as an LSO Receipt (secp256k1 / EIP-191) so the result can be verified independently and passed on-chain: ethers.verifyMessage must recover LSO's published signer. Compliance is checked off-chain; the verified result travels. $0.10 in USDC on Base or Solana via x402. Sources: OFAC SDN (refreshed daily), GoPlus, public RPC.",
          "name": "KYACheck",
          "properties": {
            "input": {
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "chain": {
                      "default": "base",
                      "description": "EVM chain for on-chain risk: base, eth, arb, poly, bsc",
                      "title": "Chain",
                      "type": "string"
                    },
                    "name": {
                      "description": "Optional agent, company or person name to screen against OFAC",
                      "title": "Name",
                      "type": "string"
                    },
                    "wallet": {
                      "description": "Agent/counterparty wallet address (EVM 0x... or any OFAC-listed crypto address)",
                      "title": "Wallet",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "checked_at": "2026-09-24T17:00:00Z",
                  "ofac_name": null,
                  "ofac_wallet": {
                    "currency": "ETH",
                    "listed": true,
                    "program": "CYBER2",
                    "sdn_name": "EXAMPLE ENTITY"
                  },
                  "reasons": [
                    "wallet is on the OFAC SDN list (EXAMPLE ENTITY, program CYBER2)"
                  ],
                  "receipt": {
                    "receipt": {
                      "checked_at": "2026-09-24T17:00:00Z",
                      "service": "KYA Check",
                      "verdict": "BLOCK"
                    },
                    "signature": {
                      "alg": "secp256k1-eip191",
                      "sig": "0x...",
                      "signer": "0x54aB6b8Ddbedc057F230D1b78E6cd4677d304E18"
                    }
                  },
                  "verdict": "BLOCK",
                  "wallet_risk": {
                    "chain": "base",
                    "risk_flags": [
                      "sanctioned"
                    ],
                    "risk_label": "critical",
                    "risk_score": 10
                  }
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "tags": [
            "kya",
            "sanctions",
            "ofac",
            "compliance",
            "wallet-risk"
          ],
          "type": "object",
          "version": "1.0.0"
        }
      }
    }
  },
  "liveness": {
    "reliability": null
  },
  "verified": false,
  "featured": false,
  "provider": {
    "host": "kya.lonestaroracle.xyz",
    "manifest_name": "kya.lonestaroracle.xyz",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-10-14T01:15:01.050Z"
  },
  "exampleResponse": {
    "example": null,
    "type": "string"
  }
}