{
  "x402Version": 2,
  "id": 55585,
  "slug": "55585",
  "resource": "https://agentshelf.syntexa.ch/v1/base-contract-info",
  "description": "Call when an agent needs is_contract, bytecode size and hash, EIP-1967 proxy implementation, and owner() for one Base address. owner_renounced is true for the zero address or the dead address. An EOA is is_contract false. Read-only. Send JSON {\"address\":\"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\"}. Exact $0.005 USDC on Base. Try unpaid POST /v1/sandbox/base-contract-info first.",
  "type": "http",
  "resourceType": "Blockchain Data",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0x1D61FAA032d3f40D9C470D2bf3A3f53De0E55a38",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "5000",
      "amountUsd": 0.005,
      "maxTimeoutSeconds": 60
    }
  ],
  "outputSchema": {
    "properties": {
      "example": {
        "additionalProperties": false,
        "examples": [
          {
            "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "beacon": null,
            "billed": true,
            "bytecode_bytes": 2,
            "bytecode_hash": "0x1111111111111111111111111111111111111111111111111111111111111111",
            "implementation": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
            "is_contract": true,
            "network": "eip155:8453",
            "ok": true,
            "owner": "0x0000000000000000000000000000000000000000",
            "owner_renounced": true,
            "receipt_id": "rcpt_01EXAMPLE000000000000000",
            "upgradeable_proxy": true,
            "warnings": []
          }
        ],
        "properties": {
          "address": {
            "examples": [
              "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
            ],
            "type": "string"
          },
          "beacon": {
            "examples": [
              null
            ],
            "type": [
              "string",
              "null"
            ]
          },
          "billed": {
            "examples": [
              true
            ],
            "type": "boolean"
          },
          "bytecode_bytes": {
            "examples": [
              2
            ],
            "minimum": 0,
            "type": "integer"
          },
          "bytecode_hash": {
            "examples": [
              "0x1111111111111111111111111111111111111111111111111111111111111111"
            ],
            "type": [
              "string",
              "null"
            ]
          },
          "implementation": {
            "examples": [
              "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
            ],
            "type": [
              "string",
              "null"
            ]
          },
          "is_contract": {
            "examples": [
              true
            ],
            "type": "boolean"
          },
          "network": {
            "const": "eip155:8453",
            "examples": [
              "eip155:8453"
            ],
            "type": "string"
          },
          "ok": {
            "const": true,
            "examples": [
              true
            ],
            "type": "boolean"
          },
          "owner": {
            "examples": [
              "0x0000000000000000000000000000000000000000"
            ],
            "type": [
              "string",
              "null"
            ]
          },
          "owner_renounced": {
            "examples": [
              true
            ],
            "type": [
              "boolean",
              "null"
            ]
          },
          "receipt_id": {
            "examples": [
              "rcpt_01EXAMPLE000000000000000"
            ],
            "type": "string"
          },
          "upgradeable_proxy": {
            "examples": [
              true
            ],
            "type": "boolean"
          },
          "warnings": {
            "default": [],
            "examples": [
              []
            ],
            "items": {
              "type": "string"
            },
            "type": "array"
          }
        },
        "required": [
          "ok",
          "receipt_id",
          "billed",
          "address",
          "network",
          "is_contract",
          "bytecode_bytes",
          "bytecode_hash",
          "upgradeable_proxy",
          "implementation",
          "beacon",
          "owner",
          "owner_renounced"
        ],
        "type": "object"
      },
      "type": {
        "type": "string"
      }
    },
    "required": [
      "type"
    ],
    "type": "object"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
          },
          "bodyType": "json",
          "method": "POST",
          "type": "http"
        },
        "output": {
          "example": {
            "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "beacon": null,
            "billed": true,
            "bytecode_bytes": 2,
            "bytecode_hash": "0x1111111111111111111111111111111111111111111111111111111111111111",
            "implementation": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
            "is_contract": true,
            "network": "eip155:8453",
            "ok": true,
            "owner": "0x0000000000000000000000000000000000000000",
            "owner_renounced": true,
            "receipt_id": "rcpt_01EXAMPLE000000000000000",
            "upgradeable_proxy": true,
            "warnings": []
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "body": {
                "additionalProperties": false,
                "examples": [
                  {
                    "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
                  }
                ],
                "properties": {
                  "address": {
                    "description": "Account on Base mainnet. Example: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913. Returns is_contract, bytecode size and hash, EIP-1967 implementation, and owner() when present. An EOA is is_contract false.",
                    "examples": [
                      "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
                    ],
                    "type": "string"
                  }
                },
                "required": [
                  "address"
                ],
                "type": "object"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              },
              "method": {
                "enum": [
                  "POST"
                ],
                "type": "string"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "example": {
                "additionalProperties": false,
                "examples": [
                  {
                    "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                    "beacon": null,
                    "billed": true,
                    "bytecode_bytes": 2,
                    "bytecode_hash": "0x1111111111111111111111111111111111111111111111111111111111111111",
                    "implementation": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
                    "is_contract": true,
                    "network": "eip155:8453",
                    "ok": true,
                    "owner": "0x0000000000000000000000000000000000000000",
                    "owner_renounced": true,
                    "receipt_id": "rcpt_01EXAMPLE000000000000000",
                    "upgradeable_proxy": true,
                    "warnings": []
                  }
                ],
                "properties": {
                  "address": {
                    "examples": [
                      "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
                    ],
                    "type": "string"
                  },
                  "beacon": {
                    "examples": [
                      null
                    ],
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "billed": {
                    "examples": [
                      true
                    ],
                    "type": "boolean"
                  },
                  "bytecode_bytes": {
                    "examples": [
                      2
                    ],
                    "minimum": 0,
                    "type": "integer"
                  },
                  "bytecode_hash": {
                    "examples": [
                      "0x1111111111111111111111111111111111111111111111111111111111111111"
                    ],
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "implementation": {
                    "examples": [
                      "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
                    ],
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "is_contract": {
                    "examples": [
                      true
                    ],
                    "type": "boolean"
                  },
                  "network": {
                    "const": "eip155:8453",
                    "examples": [
                      "eip155:8453"
                    ],
                    "type": "string"
                  },
                  "ok": {
                    "const": true,
                    "examples": [
                      true
                    ],
                    "type": "boolean"
                  },
                  "owner": {
                    "examples": [
                      "0x0000000000000000000000000000000000000000"
                    ],
                    "type": [
                      "string",
                      "null"
                    ]
                  },
                  "owner_renounced": {
                    "examples": [
                      true
                    ],
                    "type": [
                      "boolean",
                      "null"
                    ]
                  },
                  "receipt_id": {
                    "examples": [
                      "rcpt_01EXAMPLE000000000000000"
                    ],
                    "type": "string"
                  },
                  "upgradeable_proxy": {
                    "examples": [
                      true
                    ],
                    "type": "boolean"
                  },
                  "warnings": {
                    "default": [],
                    "examples": [
                      []
                    ],
                    "items": {
                      "type": "string"
                    },
                    "type": "array"
                  }
                },
                "required": [
                  "ok",
                  "receipt_id",
                  "billed",
                  "address",
                  "network",
                  "is_contract",
                  "bytecode_bytes",
                  "bytecode_hash",
                  "upgradeable_proxy",
                  "implementation",
                  "beacon",
                  "owner",
                  "owner_renounced"
                ],
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    }
  },
  "tags": [
    "bazaar"
  ],
  "sourceHost": "agentshelf.syntexa.ch",
  "lastUpdated": "2026-10-11T10:14:21.56Z",
  "quality": {
    "calls30d": 1,
    "uniquePayers30d": 1,
    "lastCalledAt": "2026-10-11T10:14:21.344Z"
  },
  "metadata": {
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "beacon": null,
              "billed": true,
              "bytecode_bytes": 2,
              "bytecode_hash": "0x1111111111111111111111111111111111111111111111111111111111111111",
              "implementation": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
              "is_contract": true,
              "network": "eip155:8453",
              "ok": true,
              "owner": "0x0000000000000000000000000000000000000000",
              "owner_renounced": true,
              "receipt_id": "rcpt_01EXAMPLE000000000000000",
              "upgradeable_proxy": true,
              "warnings": []
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "examples": [
                    {
                      "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
                    }
                  ],
                  "properties": {
                    "address": {
                      "description": "Account on Base mainnet. Example: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913. Returns is_contract, bytecode size and hash, EIP-1967 implementation, and owner() when present. An EOA is is_contract false.",
                      "examples": [
                        "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "address"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "additionalProperties": false,
                  "examples": [
                    {
                      "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                      "beacon": null,
                      "billed": true,
                      "bytecode_bytes": 2,
                      "bytecode_hash": "0x1111111111111111111111111111111111111111111111111111111111111111",
                      "implementation": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
                      "is_contract": true,
                      "network": "eip155:8453",
                      "ok": true,
                      "owner": "0x0000000000000000000000000000000000000000",
                      "owner_renounced": true,
                      "receipt_id": "rcpt_01EXAMPLE000000000000000",
                      "upgradeable_proxy": true,
                      "warnings": []
                    }
                  ],
                  "properties": {
                    "address": {
                      "examples": [
                        "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
                      ],
                      "type": "string"
                    },
                    "beacon": {
                      "examples": [
                        null
                      ],
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "billed": {
                      "examples": [
                        true
                      ],
                      "type": "boolean"
                    },
                    "bytecode_bytes": {
                      "examples": [
                        2
                      ],
                      "minimum": 0,
                      "type": "integer"
                    },
                    "bytecode_hash": {
                      "examples": [
                        "0x1111111111111111111111111111111111111111111111111111111111111111"
                      ],
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "implementation": {
                      "examples": [
                        "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
                      ],
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "is_contract": {
                      "examples": [
                        true
                      ],
                      "type": "boolean"
                    },
                    "network": {
                      "const": "eip155:8453",
                      "examples": [
                        "eip155:8453"
                      ],
                      "type": "string"
                    },
                    "ok": {
                      "const": true,
                      "examples": [
                        true
                      ],
                      "type": "boolean"
                    },
                    "owner": {
                      "examples": [
                        "0x0000000000000000000000000000000000000000"
                      ],
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "owner_renounced": {
                      "examples": [
                        true
                      ],
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "receipt_id": {
                      "examples": [
                        "rcpt_01EXAMPLE000000000000000"
                      ],
                      "type": "string"
                    },
                    "upgradeable_proxy": {
                      "examples": [
                        true
                      ],
                      "type": "boolean"
                    },
                    "warnings": {
                      "default": [],
                      "examples": [
                        []
                      ],
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    }
                  },
                  "required": [
                    "ok",
                    "receipt_id",
                    "billed",
                    "address",
                    "network",
                    "is_contract",
                    "bytecode_bytes",
                    "bytecode_hash",
                    "upgradeable_proxy",
                    "implementation",
                    "beacon",
                    "owner",
                    "owner_renounced"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    }
  },
  "liveness": {
    "reliability": null
  },
  "verified": false,
  "featured": false,
  "provider": {
    "host": "agentshelf.syntexa.ch",
    "manifest_name": "agentshelf.syntexa.ch",
    "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": {
      "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "beacon": null,
      "billed": true,
      "bytecode_bytes": 2,
      "bytecode_hash": "0x1111111111111111111111111111111111111111111111111111111111111111",
      "implementation": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
      "is_contract": true,
      "network": "eip155:8453",
      "ok": true,
      "owner": "0x0000000000000000000000000000000000000000",
      "owner_renounced": true,
      "receipt_id": "rcpt_01EXAMPLE000000000000000",
      "upgradeable_proxy": true,
      "warnings": []
    },
    "type": "string"
  }
}