ChainAnalyzer
x402Grade CLast checked 4 hours ago
GET https://chain-analyzer.com/api/v1/x402/presign/check
Sign-time risk verdict for a destination or spender before value moves. Registry + ScamDB lookups plus at most one RPC call (approve spender code check), so it answers in milliseconds instead of running a full scan. Same verdict as the subscription REST API.
Price$0.1per chain read · paid in USD on Base
Uptime100%
4/4 probes · 1324 ms
Score69Grade C
Paid usage, 30 days1payers · 1 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://chain-analyzer.com/api/v1/x402/presign/check"
# 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 11:01 | Valid 402 | 402 | 1582 ms | $0.1 |
| 2026-10-11 06:30 | Valid 402 | 402 | 967 ms | $0.1 |
| 2026-10-11 02:15 | Valid 402 | 402 | 1694 ms | $0.1 |
| 2026-10-10 21:45 | Valid 402 | 402 | 1066 ms | $0.1 |
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