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OneSource Ethereum Transaction Lookup by Hash
x402
OneSource Ethereum Transaction Lookup by Hash is a paid API for AI agents from api.onesource.io, paid per call via x402, $0.008/call, status unknown (last checked 2026-09-08).
Retrieves full on-chain transaction details for a given Ethereum transaction hash on mainnet or Sepolia testnet
Price / call$0.008
Success—
StatusUnknown
How this service works
Two data families for AI agents: live Ethereum mainnet, Sepolia testnet, and Robinhood Chain RPC reads, plus Deepstate on-chain market data (order books, trades, candles, and analytics). Pay per call or use batch/session mode: USDC on Base via x402, or pathUSD/USDC.e on Tempo via MPP. No API key required to start; a flat-rate monthly subscription is also available.
Output
Returns a JSON object with the transaction's hash, from address, to address, ETH value (in hex wei), gas limit (hex), nonce (hex), and block number (hex) for the specified transaction on Ethereum mainnet or Sepolia testnet.
Example use cases
Example prompt
“Can you look up the Ethereum transaction 0xad7e04119ecd85857728205f5b12e95f0bab8e99f9c2f60be5dc79cfc6a8df1f on mainnet and tell me who sent it, who received it, and how much ETH was transferred?”
Technical details
Endpoint
GEThttps://api.onesource.io/api/chain/tx/%7Bhash%7DWhen to prefer
Use this endpoint when you need structured transaction data (from, to, value, gas, nonce, block number) for a specific Ethereum or Sepolia transaction hash, without requiring an API key — especially in agent workflows using x402 micropayments. Prefer this over general-purpose RPC providers when you need pay-per-call billing in USDC with no account setup.
Side effects
- Invalid or malformed transaction hash (not matching ^0x[a-fA-F0-9]{64}$) returns an error
- Transaction hash not found on the specified network returns null or 404
- Network parameter set to an unsupported value returns validation error
- Payment not attached or insufficient USDC payment returns 402
- Node temporarily unavailable returns 5xx
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"data": {
"receipt": {
"logs": [],
"status": "0x1",
"gasUsed": "0x5208",
"blockNumber": "0x133da1e",
"transactionHash": "0xad7e04119ecd85857728205f5b12e95f0bab8e99f9c2f60be5dc79cfc6a8df1f"
},
"transaction": {
"to": "0xdac17f958d2ee523a2206206994597c13d831ec7",
"gas": "0x5208",
"from": "0xd8da6bf26964af9d7eed9e03e53415d37aa96045",
"hash": "0xad7e04119ecd85857728205f5b12e95f0bab8e99f9c2f60be5dc79cfc6a8df1f",
"nonce": "0x4d2",
"value": "0x0",
"blockNumber": "0x133da1e"
}
},
"meta": {
"endpoint": "/api/chain/tx/{hash}",
"cost_usdc": "0.001",
"request_id": "00000000abcdef01",
"payment_chain": "base",
"payment_token": "USDC"
}
}
}Tags
x402
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