07hsvih4.nx.link

[
  {
    "asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
    "payTo": "0xc801C038CcD190d9E915FAE1d69530eB6A889972",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://07hsvih4.nx.link/v1/contracts/read",
    "description": "x402 https://api.thirdweb.com - POST Read Contract",
    "outputSchema": {
      "responses": {
        "200": {
          "content": {
            "application/json": {
              "schema": {
                "type": "object",
                "required": [
                  "result"
                ],
                "properties": {
                  "result": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "required": [
                        "success"
                      ],
                      "properties": {
                        "data": {
                          "description": "The result of the contract read operation. The type and format depend on the method's return value as defined in the contract ABI."
                        },
                        "error": {
                          "type": "string",
                          "description": "Error message if the contract read operation failed."
                        },
                        "success": {
                          "type": "boolean",
                          "description": "Indicates whether the contract read operation was successful."
                        }
                      }
                    },
                    "description": "Array of results corresponding to each contract read call. Results are returned in the same order as the input calls."
                  }
                }
              }
            }
          },
          "description": "Contract read operations completed successfully. Returns an array of results corresponding to each input call, including both successful and failed operations."
        },
        "400": {
          "description": "Invalid request parameters. This occurs when the chainId is not supported, contract addresses are invalid, function signatures are malformed, or the calls array is empty."
        },
        "401": {
          "description": "Authentication required. The request must include a valid `x-client-id` header for frontend usage or `x-secret-key` for backend usage."
        },
        "500": {
          "description": "Internal server error. This may occur due to engine connectivity issues, RPC node unavailability, or unexpected server errors."
        }
      },
      "requestBody": {
        "content": {
          "application/json": {
            "schema": {
              "type": "object",
              "example": {
                "calls": [
                  {
                    "method": "function name() view returns (string)",
                    "contractAddress": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
                  },
                  {
                    "method": "function totalSupply() returns (uint256)",
                    "contractAddress": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
                  },
                  {
                    "method": "function balanceOf(address) returns (uint256)",
                    "params": [
                      "0x742d35Cc6634C0532925a3b8D43C67B8c8B3E9C6"
                    ],
                    "contractAddress": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
                  }
                ],
                "chainId": 8453
              },
              "required": [
                "calls",
                "chainId"
              ],
              "properties": {
                "calls": {
                  "type": "array",
                  "items": {
                    "type": "object",
                    "required": [
                      "contractAddress",
                      "method"
                    ],
                    "properties": {
                      "value": {
                        "type": "string",
                        "description": "Amount of native token to send with the transaction in wei. Required for payable methods."
                      },
                      "method": {
                        "type": "string",
                        "pattern": "^function\\s+\\w+",
                        "description": "The contract function signature to call (e.g., 'function approve(address spender, uint256 amount)' or `function balanceOf(address)`). Must start with 'function' followed by the function name and parameters as defined in the contract ABI."
                      },
                      "params": {
                        "type": "array",
                        "items": {},
                        "description": "Array of parameters to pass to the contract method, in the correct order and format."
                      },
                      "contractAddress": {
                        "type": "string",
                        "description": "The smart contract address or ENS name."
                      }
                    }
                  },
                  "minItems": 1,
                  "description": "Array of contract method calls to execute. Each call specifies a contract address, method signature, and optional parameters."
                },
                "chainId": {
                  "type": "integer",
                  "examples": [
                    1,
                    8453,
                    137,
                    56,
                    43114,
                    42161,
                    10
                  ],
                  "description": "The blockchain network identifier. Common values include: 1 (Ethereum), 8453 (Base), 137 (Polygon), 56 (BSC), 43114 (Avalanche), 42161 (Arbitrum), 10 (Optimism).",
                  "exclusiveMinimum": 0
                }
              }
            }
          }
        }
      }
    },
    "maxAmountRequired": "0.000110",
    "maxTimeoutSeconds": 86400
  }
]