the402 endpoint detail

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vaaya.ai tomba email-verifier

https://vaaya.ai/api/run/tomba/email-verifier

answers 402

Verify an email address's deliverability via Tomba. Pass `email`. Returns status (deliverable/undeliverable/risky), SMTP + MX checks, disposable/webmail flags, and a score. Cheapest verify rung — use before sending to a found email.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.02
Network
base
Pay to
0x7c655d3d3944Bd27994dD81A036C3aFB19806C40
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
89 ms
Payment options
1 usable of 1
Last checked
2026-08-15T14:24:54.499Z (2d ago)
Category
ai-inference

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fvaaya.ai%2Fapi%2Frun%2Ftomba%2Femail-verifier"