api.delx.ai x402 card-mask

https://api.delx.ai/api/v1/x402/card-mask

payable

Mask a digit string keeping last4. Call when you display agent-held card-shaped numbers safely. Returns masked and last4 for $0.001 USDC via x402 on Base. Masking only—does not store PANs. No network, no keys, no retention. Results are advisory; the caller owns budgets, auth, and production controls.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.

Price: $0.001
Network: base
Pay to: 0x9f8bd9875b3E0b632a24A3A7C73f7787175e73A2
Spec dialect: v2 (declares x402Version 2)
Transport: PAYMENT-REQUIRED header
HTTP method: POST
Response latency: 260 ms
Payment options: 3 usable of 3
Last checked: 2026-08-10T09:13:26.934Z (1d ago)
Category: ai-inference

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.delx.ai%2Fapi%2Fv1%2Fx402%2Fcard-mask"