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Blockchain Transaction Explainer
x402
Blockchain Transaction Explainer is a paid API for AI agents from store.agentexchange.work, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Decodes and explains an on-chain transaction hash into a human-readable summary with action type, asset changes, and method details
Price / call$0.002
Success—
StatusUnknown
How this service works
Decode any transaction by hash into plain English: what happened (swap/transfer/approval/mint/call), the actors, and the full asset changes (every native+token in/out with symbol, amount, direction), plus status, fee and method. For wallet UX, accounting, risk and trading agents. Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis via Blockscout.
Output
A JSON object with the transaction hash, chain, decoded action label (e.g. 'swap'), contract method name, success/failure status, ETH fee, a plain-English summary sentence, and an array of asset changes each showing symbol, amount, and in/out direction.
Example use cases
Example prompt
“Can you explain what this Base transaction did: 0x4f3a2b1c9e8d7f6a5b4c3d2e1f0a9b8c7d6e5f4a3b2c1d0e9f8a7b6c5d4e3f2a1 — I want to know the action, any asset changes, and the fee paid.”
Technical details
Endpoint
GEThttps://store.agentexchange.work/chain/tx-explainWhen to prefer
Use this endpoint when you need to decode and explain a specific EVM transaction hash into human-readable form across Base, Ethereum, Optimism, Arbitrum, Polygon, or Gnosis — especially when you want structured asset change data without setting up an API key or subscription. Ideal for AI agents that receive a tx hash and need to explain it to a user or route on its contents.
Side effects
- Invalid or malformed transaction hash returns an error
- Transaction hash not found on specified chain
- Unsupported chain identifier returns 402 or 400 error
- Unrecognized contract method may return partial decode with limited action label
- Network timeout on RPC node lookup
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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