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Transaction Status & Revert Reason
x402
Transaction Status & Revert Reason is a paid API for AI agents from api.eucompliance.tools, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Returns full transaction status, block info, gas used, fee paid, and — for failed transactions — the plain-text revert reason recovered by replaying the call against its block.
Price / call$0.002
Success—
StatusUnknown
How this service works
What happened to my transaction? Status, block, gas used, fee paid - and if it failed, the revert reason in plain text, recovered by replaying the call against its block. The receipt alone does not carry that reason.
Output
Returns the transaction status (success/failure), block number, gas used, total fee paid, and — critically for failed transactions — the human-readable revert reason recovered by replaying the call against the original block. This goes beyond a raw receipt by decoding the actual failure message from the EVM.
Example use cases
Debug failed smart contract call
“My transaction 0xabc123...def456 on Ethereum failed — can you replay it and tell me the exact revert reason in plain English?”
Confirm transaction and fee paid
“Did my Polygon transaction 0x9f8e...1234 go through? If so, what block was it in and how much did I end up paying in gas fees?”
Audit on-chain transaction outcome
“I need to verify whether transaction 0x7c2d...8b90 on Arbitrum succeeded and get the gas used and total fee paid for my records.”
Technical details
Endpoint
GEThttps://api.eucompliance.tools/x402/txWhen to prefer
Use this endpoint when you need to understand why a transaction failed and need the decoded revert reason — not just a pass/fail status. Unlike raw JSON-RPC eth_getTransactionReceipt calls, this endpoint replays the transaction against its block to recover the plain-text revert message. Prefer it over a generic Multi-Chain RPC Gateway when the goal is diagnosis rather than raw data, and over the Transaction Pre-flight Check when the transaction has already been submitted.
Side effects
- Invalid or malformed tx_hash returns an error — hash must be a valid 0x-prefixed hex string
- Transaction not found on the specified chain (wrong chain selected)
- Revert reason unavailable if the node cannot replay the historical block (archive node limitation)
- Unsupported chain identifier returns a validation error
- Network or RPC timeout causing delayed or missing response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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