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mailcheck.hugen.tokyo mailcheck validate
https://mailcheck.hugen.tokyo/mailcheck/validate
answers 402
6 email validation checks in one call — syntax (RFC 5322), MX record verification, disposable detection (5,000+ domains), free provider identification, role-based address detection (admin@, info@), and typo suggestion. Returns a 0-1 confidence score with detailed per-check results. POST method protects email addresses from access logs. No API keys, no multiple service integrations needed. Accepts
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.01
- Network
- base
- Pay to
- 0x29322Ea7EcB34aA6164cb2ddeB9CE650902E4f60
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 456 ms
- Payment options
- 2 usable of 2
- Last checked
- 2026-09-06T01:22:09.843Z (32d ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fmailcheck.hugen.tokyo%2Fmailcheck%2Fvalidate"