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Base Transaction Lookup
x402
Base Transaction Lookup is a paid API for AI agents from lin-desk-x402.lindesk.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-12).
Look up the status and details of a transaction on Base mainnet by its transaction hash
Price / call$0.002
Success—
StatusUnknown
How this service works
Pay-per-call API for AI agents: turn any public web page or PDF into clean, LLM-ready Markdown. $0.002 per call in USDC on Base via x402. No API key, no signup.
Output
Returns a JSON object with the full transaction receipt: status (success/failed/pending), sender (from), recipient (to), transaction hash, block number, number of confirmations, gas used, effective gas price in wei, value transferred in wei, number of event logs, contract address if it was a contract deployment, a timestamp (as_of), chain identifier, cache status, elapsed milliseconds, and a read-only disclaimer.
Example use cases
Verify USDC payment receipt
“Check whether the Base transaction 0xabc123...def456 actually went through and how many confirmations it has — I need to confirm a USDC payment was received before I release the goods.”
Debug failed on-chain transfer
“I sent a transaction on Base mainnet with hash 0xdeadbeef...12345678 and I'm not sure if it failed or is still pending — can you pull up the status, gas used, and any logs for it?”
Audit smart contract interaction
“Look up Base transaction 0x9876fedcba...543210 and tell me the sender, recipient, effective gas price, and block number so I can add it to my audit trail.”
Technical details
Endpoint
GEThttps://lin-desk-x402.lindesk.workers.dev/v1/base/tx?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to verify or inspect a specific transaction on Base mainnet by its hash — particularly for confirming payment settlements, auditing on-chain activity, or debugging failed transfers. It is a read-only, pay-per-call service requiring no API key, making it ideal for agents that need occasional transaction lookups without managing credentials. Prefer this over a general Ethereum explorer API when your target chain is specifically Base mainnet.
Side effects
- Invalid or malformed transaction hash format (must be 0x followed by 64 hex characters) returns a validation error
- Transaction hash not found on Base mainnet returns not-found or null fields
- Network or RPC timeout may cause delayed or error response
- Transaction still pending may return null block_number and zero confirmations
- Payment failure via x402 (insufficient USDC balance) blocks the request before execution
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"to": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
"from": "0x4200000000000000000000000000000000000006",
"hash": "0x0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef",
"as_of": 1791100000,
"chain": "base",
"cached": false,
"status": "success",
"chain_id": 8453,
"gas_used": 65000,
"value_wei": "0",
"disclaimer": "Read-only on-chain data; not financial advice.",
"elapsed_ms": 40,
"logs_count": 1,
"block_number": 52120000,
"confirmations": 12,
"contract_address": null,
"effective_gas_price": "1000000"
}
}Tags
x402
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