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Financial Data x402 – Transaction Status Lookup
x402
Financial Data x402 – Transaction Status Lookup is a paid API for AI agents from x402financialdata.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).
Looks up the confirmation status and success/failure of an Ethereum transaction by its hash
Price / call$0.01
Success—
StatusUnknown
How this service works
Pay-per-call stock, macro, on-chain, and crypto data over the x402 protocol. USDC on Base or Solana, no API keys, no subscriptions.
Output
Returns a JSON object with the chain name (e.g. 'eth'), the transaction hash, a boolean 'succeeded' field (null for pre-Byzantium blocks before 4,370,000 or unrecognized hashes), an 'error_description' string if applicable, and an 'is_contract_error' boolean indicating whether a failure was at the contract execution level.
Example use cases
Verify ETH payment confirmation
“I just sent an Ethereum payment and got back this tx hash: 0xabc123... — can you check whether it actually went through or got reverted?”
Debug failed smart contract call
“My smart contract interaction returned tx hash 0xdef456... but something felt off — can you look up whether it succeeded or if it was a contract-level error?”
Confirm on-chain settlement before releasing goods
“Before I release the order, I need to confirm this Ethereum transaction 0x789fed... actually confirmed successfully on-chain — can you verify it?”
Technical details
Endpoint
GEThttps://x402financialdata.com/transaction-status/%7Btx_hash%7DWhen to prefer
Use this endpoint when you need a quick, no-subscription, pay-per-call check on whether a specific Ethereum transaction succeeded or was reverted, especially in agentic workflows that need to verify on-chain settlement before proceeding. Prefer this over building your own Etherscan integration when you want micro-payment access without API key management.
Side effects
- Transaction hash not recognized by Etherscan — succeeded returns null
- Pre-Byzantium transaction (block < 4,370,000) — succeeded returns null because receipt status field did not exist
- Invalid or malformed tx hash — may return an error or null response
- Network or upstream Etherscan API outage causing lookup failure
- Payment failure via x402 protocol if USDC balance is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| required | string | |
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"note": "succeeded is null for pre-Byzantium transactions (before block 4,370,000) or a tx hash Etherscan doesn't recognize -- the receipt status field didn't exist yet.",
"chain": "eth",
"tx_hash": "0x4dfa7b1be6578326be24ad2d330e7baf23230e18c2d2c67d8f41798e0e764b0b",
"succeeded": true,
"error_description": null,
"is_contract_error": false
}
}Tags
x402
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