{
  "x402Version": 2,
  "id": 2580,
  "slug": "2580",
  "resource": "https://apiacre.com/v1/crypto/base-contract-read",
  "description": "Execute one bounded read-only eth_call against a resolved Base mainnet block, retain call and block evidence, and optionally decode caller-specified ABI output types.",
  "type": "http",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0xa0BFa4f07281c9b248DC3AED2217836BcA24869B",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "5000",
      "maxTimeoutSeconds": 300
    },
    {
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "B4CHWQeQn7GDLZD2aW6hpGG2bEseisBFLZYECA3HDLan",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "amount": "5000",
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "block_tag": "safe",
            "call_data": "0x313ce567",
            "contract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "gas_limit": 2000000,
            "output_types": [
              "uint8"
            ]
          },
          "bodyType": "json",
          "method": "POST",
          "type": "http"
        },
        "output": {
          "example": {
            "data": {
              "block": {
                "hash": "0x1111111111111111111111111111111111111111111111111111111111111111",
                "number": 34567890,
                "requestedTag": "safe",
                "timestamp": "2026-08-10T16:00:00+00:00"
              },
              "call": {
                "contract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                "dataBytes": 4,
                "from": null,
                "gasLimit": 2000000,
                "selector": "0x313ce567"
              },
              "decodeStatus": "decoded",
              "decodedValues": [
                6
              ],
              "disclaimer": "Read-only public Base mainnet execution at one resolved block. No transaction...",
              "network": "eip155:8453",
              "outputTypes": [
                "uint8"
              ],
              "readOnly": true,
              "result": {
                "bytes": 32,
                "hex": "0x0000000000000000000000000000000000000000000000000000000000000006",
                "returnedBytes": 32,
                "sha256": "d1ec675902ef1633427ca360b290b0b3045a0d9058ddb5e648b4c3c3224c5c68",
                "truncated": false
              },
              "rpcError": null,
              "source": "https://docs.base.org/base-chain/api-reference/ethereum-json-rpc-api/eth_call",
              "success": true,
              "transactionBroadcast": false,
              "warnings": []
            },
            "meta": {
              "cached": false,
              "duration_ms": 42,
              "next_actions": [],
              "sources": [],
              "warnings": []
            },
            "request_id": "018f1f54-7f38-7ba2-8dc3-5f90272d9f1a",
            "service": "crypto.base-contract-read",
            "version": "1"
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "body": {
                "properties": {
                  "block_tag": {
                    "enum": [
                      "latest",
                      "safe",
                      "finalized"
                    ],
                    "type": "string"
                  },
                  "call_data": {
                    "type": "string"
                  },
                  "contract": {
                    "type": "string"
                  },
                  "from_address": {
                    "anyOf": [
                      {
                        "type": "string"
                      },
                      {
                        "type": "null"
                      }
                    ]
                  },
                  "gas_limit": {
                    "type": "integer"
                  },
                  "output_types": {
                    "items": {
                      "type": "string"
                    },
                    "type": "array"
                  }
                },
                "required": [
                  "contract",
                  "call_data"
                ],
                "type": "object"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              },
              "method": {
                "enum": [
                  "POST",
                  "PUT",
                  "PATCH"
                ],
                "type": "string"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "example": {
                "properties": {
                  "data": {
                    "properties": {
                      "block": {
                        "type": "object"
                      },
                      "call": {
                        "type": "object"
                      },
                      "decodeStatus": {
                        "type": "string"
                      },
                      "decodedValues": {
                        "type": [
                          "array",
                          "null"
                        ]
                      },
                      "disclaimer": {
                        "type": "string"
                      },
                      "network": {
                        "type": "string"
                      },
                      "outputTypes": {
                        "items": {
                          "type": "string"
                        },
                        "type": "array"
                      },
                      "readOnly": {
                        "type": "boolean"
                      },
                      "result": {
                        "type": [
                          "object",
                          "null"
                        ]
                      },
                      "rpcError": {
                        "type": [
                          "object",
                          "null"
                        ]
                      },
                      "source": {
                        "type": "string"
                      },
                      "success": {
                        "type": "boolean"
                      },
                      "transactionBroadcast": {
                        "type": "boolean"
                      },
                      "warnings": {
                        "items": {
                          "type": "string"
                        },
                        "type": "array"
                      }
                    },
                    "type": "object"
                  },
                  "meta": {
                    "properties": {
                      "cached": {
                        "type": "boolean"
                      },
                      "duration_ms": {
                        "type": "integer"
                      },
                      "next_actions": {
                        "items": {
                          "type": "object"
                        },
                        "type": "array"
                      },
                      "sources": {
                        "items": {
                          "type": "string"
                        },
                        "type": "array"
                      },
                      "warnings": {
                        "items": {
                          "type": "string"
                        },
                        "type": "array"
                      }
                    },
                    "required": [
                      "duration_ms",
                      "cached",
                      "sources",
                      "warnings",
                      "next_actions"
                    ],
                    "type": "object"
                  },
                  "request_id": {
                    "type": "string"
                  },
                  "service": {
                    "type": "string"
                  },
                  "version": {
                    "type": "string"
                  }
                },
                "required": [
                  "request_id",
                  "service",
                  "version",
                  "data",
                  "meta"
                ],
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    },
    "payment-identifier": {
      "info": {
        "required": false
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "id": {
            "maxLength": 128,
            "minLength": 16,
            "pattern": "^[a-zA-Z0-9_-]+$",
            "type": "string"
          },
          "required": {
            "type": "boolean"
          }
        },
        "required": [
          "required"
        ],
        "type": "object"
      }
    }
  },
  "tags": [
    "bazaar",
    "payment-identifier"
  ],
  "sourceHost": "apiacre.com",
  "lastUpdated": "2026-09-01T12:52:12.756Z",
  "quality": {
    "calls30d": 1,
    "uniquePayers30d": 1,
    "lastCalledAt": "2026-09-01T12:52:12.516Z"
  },
  "liveness": {},
  "verified": false,
  "featured": false,
  "provider": {
    "host": "apiacre.com",
    "manifest_name": "apiacre.com",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-09-18T22:00:31.484Z"
  }
}