api.delx.ai x402 is-email-shape

https://api.delx.ai/api/v1/x402/is-email-shape

payable

Validate email shape (not mailbox existence). Call when you cheaply reject obvious non-emails before enrichment. Returns valid boolean for $0.001 USDC via x402 on Base. Shape only—not MX, SMTP, or ownership proof. 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: 162 ms
Payment options: 3 usable of 3
Last checked: 2026-08-10T09:13:27.200Z (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%2Fis-email-shape"