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EVM Internal Transaction Lookup
x402
EVM Internal Transaction Lookup is a paid API for AI agents from x402helper.xyz, paid per call via x402, $0.013/call, status unknown (last checked 2026-11-07).
Looks up details of an internal EVM transaction by hash on a specified blockchain network via Blockscout
Price / call$0.013
Success—
StatusUnknown
How this service works
X402 micropayments server — AI agents pay USDC for OFAC screening, rates, and billing verification.
Output
Returns a JSON object with success status and a result object containing internal transaction details retrieved from Blockscout for the specified EVM network and transaction hash.
Example use cases
Verify DeFi protocol internal call
“I need to check what internal transactions occurred inside tx hash 0xabc123...def456 on Ethereum — can you pull the full internal transaction details?”
Debug a failed Arbitrum transaction
“Can you look up the internal transaction trace for 0xdeadbeef...12345678 on Arbitrum so I can see what sub-calls happened and where it might have failed?”
Confirm internal USDC transfer on Base
“Please check the internal transaction for hash 0x9f8e7d...001122 on Base and tell me if a token transfer was executed internally.”
Technical details
Endpoint
GEThttps://x402helper.xyz/89e509/evm/internal-tx?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to inspect internal (sub-call) transaction details on an EVM-compatible chain — particularly useful for debugging DeFi interactions, verifying internal token transfers, or auditing contract-to-contract calls that don't appear as top-level transactions.
Side effects
- Invalid or malformed transaction hash returns an error
- Transaction hash not found on the specified network
- Unsupported network specified
- Network congestion may cause slow Blockscout responses
- Hash exists on a different chain than specified
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {},
"success": true
}
}Tags
x402
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