x402 Chain Tools
x402Grade BLast checked 3 hours ago
POST https://blockchain-api.x402-chain-tools.workers.dev/chain/transaction-lookup
Lookup Base transaction by hash on Base Mainnet. Return sender, recipient, value, nonce, block, gas fields, and input data when found.
Price$0.002per chain read · paid in USD on Base
Uptime100%
4/4 probes · 259.5 ms
Score75Grade B
Paid usage, 30 days2payers · 2 calls
How to buy
This endpoint takes pay-per-call payments over x402. Call it once without paying to see its live price; any x402 client then pays and retries automatically.
curl -i -X POST "https://blockchain-api.x402-chain-tools.workers.dev/chain/transaction-lookup"
# HTTP/1.1 402 Payment Required: price, asset and payTo are in the responseRecent checks
| Checked (UTC) | Result | Status | Time | Live price |
|---|---|---|---|---|
| 2026-10-11 08:46 | Valid 402 | 402 | 251 ms | $0.002 |
| 2026-10-11 04:15 | Valid 402 | 402 | 193 ms | $0.002 |
| 2026-10-10 23:46 | Valid 402 | 402 | 268 ms | $0.002 |
| 2026-10-10 18:45 | Valid 402 | 402 | 311 ms | $0.002 |
Receipts
No test purchases yet. Graded test purchases are next on our list; until then every number here comes from unpaid checks.
What a check proves