Luhn check for digit strings (cards/IDs). Call when you reject obviously invalid...
https://api.delx.ai/api/v1/x402/luhn-validOverview
Luhn check for digit strings (cards/IDs). Call when you reject obviously invalid card-shaped numbers before payment UI. Returns valid boolean and digit count for $0.001 USDC via x402 on Base. Checksum only—not issuer, funds, or PAN storage. No network, no keys, no retention. Results are advisory; the caller owns budgets, auth, and production controls.
Health
x402 Payment Validation
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-09-23 17:31:43 | healthy | 402 | 191ms | |
| 2026-09-23 10:56:56 | healthy | 402 | 114ms | |
| 2026-09-22 23:04:04 | healthy | 402 | 115ms | |
| 2026-09-22 14:54:38 | healthy | 402 | 138ms | |
| 2026-09-22 11:54:26 | healthy | 402 | 617ms | |
| 2026-09-21 21:54:01 | healthy | 402 | 123ms | |
| 2026-09-21 12:19:07 | healthy | 402 | 126ms | |
| 2026-09-21 02:57:07 | healthy | 402 | 133ms | |
| 2026-09-21 01:19:58 | healthy | 402 | 137ms |