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EVM Transaction Lookup by Hash
x402
EVM Transaction Lookup by Hash is a paid API for AI agents from payai.agentstools.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Fetches full transaction details (from/to/value/nonce/gas, block info, and receipt fields) for a given transaction hash on Base, Ethereum, Arbitrum, Optimism, Polygon, or BNB Chain.
Price / call$0.01
Success—
StatusUnknown
How this service works
Look up a transaction by hash on Base, Ethereum, Arbitrum, Optimism, Polygon or BNB (default Base): from/to/value/nonce/gas, block, and receipt fields (status, gasUsed, logs count). Pending/not-found handled.
Output
Returns the transaction's from/to addresses, transferred value, nonce, gas limit, block number, receipt status (success/failure), gasUsed, and number of logs. If the transaction is pending or not found, that state is handled gracefully.
Example use cases
Verify customer payment completion
“I just received a payment notification from a customer. Can you look up transaction 0x7f2c...8a4d on Polygon and confirm it actually went through, who sent it, and how much they transferred?”
Debug failed transaction for support
“A user is saying their swap didn't work on Base. Their transaction hash is 0x9b1e...5c3f — can you check if it failed, what the error was, and how much gas they wasted?”
Track cross-chain transaction status
“I need to monitor a transaction I just sent on Ethereum. Can you look up 0x3d6a...2b7e and tell me what block it's in, whether it's pending or confirmed, and how many contract interactions happened?”
Technical details
Endpoint
GEThttps://payai.agentstools.dev/txWhen to prefer
Use this endpoint when you need to verify or inspect a specific on-chain transaction across major EVM-compatible networks (Base, Ethereum, Arbitrum, Optimism, Polygon, BNB). Ideal for confirming payment finality, debugging failed transactions, or extracting on-chain data for a known tx hash. Prefer this over block explorers when you need structured, machine-readable output in an agent workflow.
Side effects
- Invalid or malformed transaction hash (not 0x-prefixed or wrong length) — returns error
- Transaction not found on the specified network — handled with not-found response
- Pending transaction — receipt fields absent or flagged as pending
- Unsupported network string — validation error
- Network RPC timeout or connectivity issue — returns error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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