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Blockchain Transaction Decoder
x402
Blockchain Transaction Decoder is a paid API for AI agents from task-radar-x402.vercel.app, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-31).
Decodes a blockchain transaction by hash, returning status, from/to addresses, value, gas, decoded method and event signatures, and ERC-20 transfers.
Price / call$0.02
Success—
StatusUnknown
How this service works
Transaction decoder: status, from/to, value, gas, decoded method + event signatures, ERC-20 transfers (public RPC + openchain). 0.02 USDC/call on Base.
Output
Returns the transaction status (success/fail/pending), from and to addresses, ETH value transferred, gas used, the decoded method signature of the function call, decoded event signatures emitted, and a list of ERC-20 token transfers extracted from the transaction logs.
Example use cases
Confirm DeFi swap succeeded
“I just submitted a swap on Uniswap on Ethereum — can you check tx hash 0xabc123... and tell me if it went through, what method was called, and which tokens were transferred?”
Debug failed smart contract call
“My transaction 0xdef456... on Arbitrum seems to have failed — can you decode it and tell me the status, what function was called, and any events that fired?”
Audit wallet activity
“Can you pull up the details on transaction 0x789fed... on Polygon — I need the sender, receiver, value, gas used, and any ERC-20 transfers that occurred.”
Technical details
Endpoint
GEThttps://task-radar-x402.vercel.app/api/tx?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a full human-readable breakdown of a specific transaction — including decoded method names, event signatures, and ERC-20 transfers — without needing to run your own node or write custom ABI parsing logic. It's especially useful when you don't have the contract ABI, since it uses openchain for signature lookup. Prefer it over a raw RPC call when you want enriched, decoded output in a single request.
Side effects
- Invalid or malformed transaction hash returns an error
- Transaction not found on the specified chain
- Unsupported chain identifier returns an error
- Method or event signature not found in openchain returns raw selector
- RPC node timeout or rate limit causes delayed or failed response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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