{
  "x402Version": 2,
  "id": 1137,
  "slug": "1137",
  "resource": "https://x402tap.com/api/rpc",
  "description": "Safelisted read-only JSON-RPC proxy across major EVM chains (base, ethereum, polygon, arbitrum, optimism) — eth_call, eth_getBalance, eth_getTransactionReceipt, eth_getBlockByNumber, and more",
  "type": "http",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "3000",
      "maxTimeoutSeconds": 300
    },
    {
      "scheme": "exact",
      "network": "eip155:137",
      "payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "amount": "3000",
      "maxTimeoutSeconds": 300
    },
    {
      "scheme": "exact",
      "network": "eip155:42161",
      "payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "amount": "3000",
      "maxTimeoutSeconds": 300
    },
    {
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "amount": "3000",
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "bazaar": {
      "info": {
        "input": {
          "method": "GET",
          "queryParams": {
            "chain": "base",
            "method": "eth_getBalance",
            "params": "[\"0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045\",\"latest\"]"
          },
          "type": "http"
        },
        "output": {
          "example": {
            "chain": "Base",
            "method": "eth_blockNumber",
            "result": "0x1234567"
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "properties": {
                  "chain": {
                    "description": "Chain to query: base, ethereum, polygon, arbitrum, optimism (default base)",
                    "type": "string"
                  },
                  "method": {
                    "description": "Read-only JSON-RPC method name, e.g. eth_getBalance, eth_call, eth_blockNumber",
                    "type": "string"
                  },
                  "params": {
                    "description": "JSON-encoded array of RPC params, e.g. [\"0xabc...\",\"latest\"] (default [])",
                    "type": "string"
                  }
                },
                "required": [
                  "method"
                ],
                "type": "object"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "example": {
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    },
    "offer-receipt": {
      "info": {
        "offers": [
          {
            "acceptIndex": 0,
            "format": "eip712",
            "payload": {
              "amount": "3000",
              "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "network": "eip155:8453",
              "payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
              "resourceUrl": "https://x402tap.com/api/rpc",
              "scheme": "exact",
              "validUntil": 1789415789,
              "version": 1
            },
            "signature": "0xab5d190878f9712827e0fddaee6684bd57c497bd729a0a90ccf40765ecfca06e65642395912e63ace9f396592b06ab8d903d2bc3c7c8043d73514065e70d521e1c"
          },
          {
            "acceptIndex": 1,
            "format": "eip712",
            "payload": {
              "amount": "3000",
              "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
              "network": "eip155:137",
              "payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
              "resourceUrl": "https://x402tap.com/api/rpc",
              "scheme": "exact",
              "validUntil": 1789415789,
              "version": 1
            },
            "signature": "0xc353d8c5b9013c963096a6c11bef2548a2dadde67d136cb6afbb04812deaf23b1517b152e6c52dc72f398736e03f392dbf095dd249db564d710f7bb987aafe071b"
          },
          {
            "acceptIndex": 2,
            "format": "eip712",
            "payload": {
              "amount": "3000",
              "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
              "network": "eip155:42161",
              "payTo": "0xB810B599bc730Aa85800BABe7f5d160524322C86",
              "resourceUrl": "https://x402tap.com/api/rpc",
              "scheme": "exact",
              "validUntil": 1789415789,
              "version": 1
            },
            "signature": "0xa928033958562726720ad8f96f04b222c35e0e7575b780fa833b2c472922c6600a66001ad55cd1da7505d6b09dcd938658ede4ac8edb340a820c1cd8017abecb1c"
          },
          {
            "acceptIndex": 3,
            "format": "eip712",
            "payload": {
              "amount": "3000",
              "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
              "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
              "payTo": "9fqXniDAn8hNMYC5C9waGv5u126bkwjU6qGgAoQeoWyo",
              "resourceUrl": "https://x402tap.com/api/rpc",
              "scheme": "exact",
              "validUntil": 1789415789,
              "version": 1
            },
            "signature": "0x8c6530e359e0a248e489061cfb6a7e819fc946c59657dfc604c029473c994e80050c2eaee13c8508a9610ed94630cafcc4539936c41296622e95f197226abfab1b"
          }
        ]
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "offers": {
            "items": {
              "properties": {
                "acceptIndex": {
                  "type": "integer"
                },
                "format": {
                  "type": "string"
                },
                "payload": {
                  "properties": {
                    "amount": {
                      "type": "string"
                    },
                    "asset": {
                      "type": "string"
                    },
                    "network": {
                      "type": "string"
                    },
                    "payTo": {
                      "type": "string"
                    },
                    "resourceUrl": {
                      "type": "string"
                    },
                    "scheme": {
                      "type": "string"
                    },
                    "validUntil": {
                      "type": "integer"
                    },
                    "version": {
                      "type": "integer"
                    }
                  },
                  "required": [
                    "version",
                    "resourceUrl",
                    "scheme",
                    "network",
                    "asset",
                    "payTo",
                    "amount"
                  ],
                  "type": "object"
                },
                "signature": {
                  "type": "string"
                }
              },
              "required": [
                "format",
                "signature"
              ],
              "type": "object"
            },
            "type": "array"
          }
        },
        "required": [
          "offers"
        ],
        "type": "object"
      }
    }
  },
  "tags": [
    "bazaar",
    "offer-receipt"
  ],
  "sourceHost": "x402tap.com",
  "lastUpdated": "2026-09-14T19:51:29.819Z",
  "quality": {
    "calls30d": 1,
    "uniquePayers30d": 1,
    "lastCalledAt": "2026-09-14T19:51:29.591Z"
  },
  "liveness": {},
  "verified": false,
  "featured": false,
  "provider": {
    "host": "x402tap.com",
    "manifest_name": "x402tap.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"
  }
}