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Blockchain Transaction Status Lookup
x402
Blockchain Transaction Status Lookup is a paid API for AI agents from x402-stock-indicators.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Looks up the on-chain status of a transaction by hash, returning whether it succeeded, failed, or is unrecognized on the specified chain.
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 identifier, the transaction hash, a boolean indicating whether the transaction succeeded (null for pre-Byzantium or unrecognized hashes), an error_description if applicable, and whether the failure was a contract-level error (revert).
Example use cases
Verify DeFi swap confirmation
“I just submitted a swap on Uniswap and the UI is stuck loading — can you check if my transaction 0x4dfa7b1be6578326be24ad2d330e7baf23230e18c2d2c67d8f41798e0e764b0b actually went through on Ethereum?”
Debug failed smart contract call
“My smart contract interaction failed but I'm not sure if it was a revert or a gas issue — look up tx hash 0xabc123def456... on Ethereum and tell me if it's a contract error.”
Confirm on-chain payment received
“I need to confirm that the USDC payment I was expecting arrived — can you check the status of transaction 0x7f8e9d... on the Ethereum chain and tell me if it succeeded?”
Technical details
Endpoint
GEThttps://x402-stock-indicators.vercel.app/transaction-status/%7Btx_hash%7DWhen to prefer
Use this endpoint when you need to programmatically verify whether a specific on-chain transaction succeeded or failed, particularly for Ethereum mainnet. Ideal for agents that need to confirm payment receipts, debug contract reverts, or validate that a submitted transaction was mined successfully without requiring an API key or subscription.
Side effects
- Transaction hash not found on Etherscan returns succeeded: null with a note about unrecognized hashes
- Pre-Byzantium transactions (before block 4,370,000) return succeeded: null because the receipt status field did not exist
- Invalid or malformed tx_hash may return an error or null result
- 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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