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TX Decode
x402
TX Decode is a paid API for AI agents from 402.com.tr, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-14).
Decodes a Base blockchain transaction hash into a structured summary including from/to addresses, ETH value, status, gas used, block number, method selector, and nonce.
Price / call$0.02
Success—
StatusUnknown
How this service works
Provide a Base transaction hash and get a structured summary: from/to, ETH value, status, gas used, block, method selector, and nonce — straight from Base RPC.
Output
A structured JSON object containing the decoded transaction fields: sender address (from), recipient address (to), ETH value transferred, transaction status (success/failure), gas used, block number, method selector (first 4 bytes of calldata), and nonce.
Example use cases
Verify a pending payment transfer
“I need to confirm that transaction 0xabc123...def456 on Base actually sent ETH to the right address and succeeded — can you decode it and show me the from, to, value, and status?”
Debug a failed smart contract call
“Transaction 0x7f8e...3d21 on Base seems to have failed — can you decode it and tell me the method selector, gas used, status, and what block it landed in so I can figure out what went wrong?”
Audit a DeFi interaction on Base
“I want to review what happened in Base transaction 0x9c1f...8b44 — specifically the method called, the nonce, the gas consumed, and the block number it was confirmed in.”
Technical details
Endpoint
GEThttps://402.com.tr/api/x402/tx-decodeWhen to prefer
Choose this endpoint when you need a quick, structured breakdown of a Base transaction by hash — especially when you want machine-readable fields (from, to, value, status, gas, block, method selector, nonce) without writing custom RPC calls. It is more structured than a plain human-language explanation (use the AI Transaction Explainer sibling for that) and faster to parse programmatically.
Side effects
- Invalid or malformed transaction hash returns an error
- Transaction hash not found on Base (wrong network or not yet indexed) returns null or 404
- RPC timeout if Base node is slow or overloaded
- Transactions with empty calldata will have no method selector
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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