Api Endpoint

x402 Chain Tools

Lookup Base transaction by hash on Base Mainnet. Return sender, recipient, value, nonce, block, gas fields, and input data when found.

Open interactive test console

Offering

Provider
blockchain-api.x402-chain-tools.workers.dev
Method
POST
Offering type
Api Endpoint
Transport type
http
Category
Blockchain And Crypto
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://blockchain-api.x402-chain-tools.workers.dev/chain/transaction-lookup
MIME type
Not provided
First seen
2026-10-16T01:50:10.647Z
Last seen
Tags
X402, blockchain, Base, transactions

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.002 USDC
Atomic price: 2000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.002 USDC
Atomic price: 2000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2000",
    "payTo": "0xa7e1fe3744E3b6D55237d95cE575cAFe3b8abeCD"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "2000",
    "payTo": "5vX2u7mkwhxpvQYNA7SqmauJjkcfnxETQ6tKVZphzKyM"
  }
]

Observed health

Status
Reachable
Latest latency
120 ms
Average latency
247 ms
HTTP status
405
Last checked
Reachability
100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "additionalProperties": false,
  "properties": {
    "body": {
      "additionalProperties": false,
      "properties": {
        "hash": {
          "description": "Base Mainnet transaction hash.",
          "pattern": "^0x[0-9a-fA-F]{64}$",
          "type": "string"
        }
      },
      "required": [
        "hash"
      ],
      "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 schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "body": {
          "additionalProperties": false,
          "properties": {
            "hash": {
              "description": "Base Mainnet transaction hash.",
              "pattern": "^0x[0-9a-fA-F]{64}$",
              "type": "string"
            }
          },
          "required": [
            "hash"
          ],
          "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,
          "properties": {
            "found": {
              "type": "boolean"
            },
            "hash": {
              "description": "Base Mainnet transaction hash.",
              "pattern": "^0x[0-9a-fA-F]{64}$",
              "type": "string"
            },
            "network": {
              "const": "eip155:8453",
              "type": "string"
            },
            "ok": {
              "const": true,
              "type": "boolean"
            },
            "transaction": {
              "oneOf": [
                {
                  "type": "null"
                },
                {
                  "additionalProperties": false,
                  "properties": {
                    "block_number": {
                      "oneOf": [
                        {
                          "type": "null"
                        },
                        {
                          "pattern": "^[0-9]+$",
                          "type": "string"
                        }
                      ]
                    },
                    "from": {
                      "description": "Transaction sender.",
                      "pattern": "^0x[0-9a-fA-F]{40}$",
                      "type": "string"
                    },
                    "gas": {
                      "pattern": "^[0-9]+$",
                      "type": "string"
                    },
                    "gas_price": {
                      "pattern": "^[0-9]+$",
                      "type": "string"
                    },
                    "hash": {
                      "description": "Base Mainnet transaction hash.",
                      "pattern": "^0x[0-9a-fA-F]{64}$",
                      "type": "string"
                    },
                    "input": {
                      "pattern": "^0x(?:[0-9a-fA-F]{2})*$",
                      "type": "string"
                    },
                    "max_fee_per_gas": {
                      "pattern": "^[0-9]+$",
                      "type": "string"
                    },
                    "max_priority_fee_per_gas": {
                      "pattern": "^[0-9]+$",
                      "type": "string"
                    },
                    "nonce": {
                      "pattern": "^[0-9]+$",
                      "type": "string"
                    },
                    "to": {
                      "oneOf": [
                        {
                          "type": "null"
                        },
                        {
                          "description": "Transaction recipient.",
                          "pattern": "^0x[0-9a-fA-F]{40}$",
                          "type": "string"
                        }
                      ]
                    },
                    "transaction_index": {
                      "oneOf": [
                        {
                          "type": "null"
                        },
                        {
                          "pattern": "^[0-9]+$",
                          "type": "string"
                        }
                      ]
                    },
                    "value_wei": {
                      "pattern": "^[0-9]+$",
                      "type": "string"
                    }
                  },
                  "required": [
                    "hash",
                    "from",
                    "to",
                    "value_wei",
                    "nonce",
                    "block_number",
                    "transaction_index",
                    "gas",
                    "input"
                  ],
                  "type": "object"
                }
              ]
            }
          },
          "required": [
            "ok",
            "network",
            "hash",
            "found",
            "transaction"
          ],
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}