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Multi-Chain EVM Transaction Lookup
x402
Multi-Chain EVM Transaction Lookup is a paid API for AI agents from ai-policy-kit.moneymaker-ai.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-19).
Looks up an EVM transaction hash across 8 blockchain networks and returns decoded transaction details including chain, status, value, gas, and ERC-20 transfer logs.
Price / call$0.002
Success—
StatusUnknown
How this service works
Generate an AI_POLICY.md and a pull request template with an AI-disclosure section for your open-source repo. Free, runs in your browser.
Output
A JSON object containing the original tx hash queried, a found boolean, and a matches array with per-chain details: sender, recipient, value, fee, gas used, block number, block timestamp, confirmation count, chain name and ID, method selector, number of ERC-20 transfer logs, and transaction status. Also includes a list of all chains searched and any unreachable chains.
Example use cases
Payment confirmation across chains
“I sent a payment and have this tx hash — 0x7f3a2b9c1d4e5f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1d2e3f4a5b6c7d8e9f0a — can you check all the major EVM chains and confirm it went through and who received it?”
Debugging a failed DeFi transaction
“My swap transaction 0xabc123def456abc123def456abc123def456abc123def456abc123def456abc1 might have failed — can you look it up on Ethereum, Arbitrum, and the other supported chains to see the status and how much gas was used?”
Identifying which blockchain a hash belongs to
“I have this transaction hash 0x9d8e7f6a5b4c3d2e1f0a9b8c7d6e5f4a3b2c1d0e9f8a7b6c5d4e3f2a1b0c9d8 but I don't know which network it's on — can you search all 8 chains and tell me where it was found and what it did?”
Technical details
Endpoint
GEThttps://ai-policy-kit.moneymaker-ai.workers.dev/api/tx-find?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to locate or verify an EVM-compatible transaction hash without knowing which chain it was submitted on. It searches 8 chains simultaneously (Base, Ethereum, BSC, Arbitrum, Optimism, Polygon, Gnosis, Celo) and returns decoded details in one call, saving the need to query each chain's RPC individually. Ideal for payment verification, debugging DeFi transactions, and auditing cross-chain activity.
Side effects
- Transaction hash not found on any of the 8 chains — returns found:false with empty matches
- Invalid or malformed tx hash format causes a request error
- One or more chains temporarily unreachable — listed in unreachable array with partial results
- Transaction too recent with zero confirmations may appear unconfirmed
- Rate limiting or payment failure if x402 micropayment is not correctly attached
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"tx": "0x31d3ca08e240e857dac4625e5d6d1e997a97a1e28fd0ecc18605a92b0e663478",
"found": true,
"matches": [
{
"to": "0x90c8889f428F9Ebb77BB8f15CAD3a50a9aC680df",
"fee": "0.0000018304",
"from": "0x7C34E9e21eE28A49Ff0b84B61774119E6633359f",
"block": 128371957,
"chain": "bsc",
"nonce": 230,
"value": "0",
"native": "BNB",
"status": "success",
"chainId": 56,
"gas_used": "36608",
"log_count": 1,
"confirmations": 56394,
"block_time_utc": "2026-10-18T13:40:48.000Z",
"fee_includes_l1": false,
"method_selector": "0xa9059cbb",
"erc20_transfer_logs": 1,
"effective_gas_price_gwei": 0.05
}
],
"searched": [
"base",
"ethereum",
"bsc",
"arbitrum",
"optimism",
"polygon",
"gnosis",
"celo"
],
"unreachable": []
}
}Tags
x402
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