Contract or wallet
x402Grade BLast checked 34 min ago
GET https://flat-rate-llm.kikoribera03.workers.dev/v1/evm/is-contract
Tells whether an address is a smart contract or a plain wallet, and how big its bytecode is. A cheap safety check before sending funds. Via eth_getCode.
Price$0.005per chain read · paid in USD on Base
Uptime100%
4/4 probes · 55.5 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 GET "https://flat-rate-llm.kikoribera03.workers.dev/v1/evm/is-contract"
# 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 12:46 | timeout | – | – | not listed |
| 2026-10-11 08:15 | Valid 402 | 402 | 68 ms | $0.005 |
| 2026-10-11 03:45 | Valid 402 | 402 | 13 ms | $0.005 |
| 2026-10-10 23:16 | Valid 402 | 402 | 599 ms | $0.005 |
| 2026-10-10 17:45 | Valid 402 | 402 | 43 ms | $0.005 |
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