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x402 Chain Tools – Base Mainnet Transaction Lookup
x402
x402 Chain Tools – Base Mainnet Transaction Lookup is a paid API for AI agents from blockchain-api.x402-chain-tools.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Look up a Base Mainnet transaction by hash, returning sender, recipient, value, nonce, block number, gas fields, and input data.
Price / call$0.002
Success—
StatusUnknown
How this service works
Lookup Base transaction by hash on Base Mainnet. Return sender, recipient, value, nonce, block, gas fields, and input data when found.
Output
Returns a structured object containing the transaction sender address, recipient address, transferred ETH value, nonce, block number, gas limit, gas price, and raw input data for the given Base Mainnet transaction hash. Returns a not-found result if the hash does not correspond to an existing transaction.
Example use cases
Confirm a payment was sent on-chain
“I think I sent a USDC transfer on Base earlier — can you check transaction hash 0xabc123...def456 and confirm who the sender and recipient were and how much value was moved?”
Debug a failed DeFi interaction
“My swap transaction on Base might have had weird input data — can you pull up tx 0x9f8e7d...1a2b3c and show me the full input data and gas fields so I can figure out what happened?”
Audit transaction for compliance record
“I need the full details of Base Mainnet transaction 0x1234ab...cd5678 for our records — sender, recipient, value, nonce, and the block it was confirmed in.”
Technical details
Endpoint
POSThttps://blockchain-api.x402-chain-tools.workers.dev/chain/transaction-lookupWhen to prefer
Use this endpoint when you need full transaction-level details (sender, recipient, value, gas, input data) for a specific Base Mainnet tx hash. Prefer this over the receipt endpoint when you need pre-execution fields like nonce, gas parameters, and raw input data rather than post-execution status. Best for agents inspecting, auditing, or debugging individual Base transactions.
Side effects
- Invalid hash format (not 0x-prefixed 64-char hex) — rejected by schema validation
- Transaction hash not found on Base Mainnet — returns empty or error response
- Network/RPC unavailability causing timeout
- Payment failure via x402 protocol preventing request execution
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| hash | string | Base Mainnet transaction hash. |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"hash": "0x0000000000000000000000000000000000000000000000000000000000000000",
"found": false,
"network": "eip155:8453",
"transaction": null
}
}Tags
x402
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