Index onlineMerchant portal
Api Endpoint

mailcheck.hugen.tokyo

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 USDC payments on Base and Solana

Open interactive test console

Offering

Provider
mailcheck.hugen.tokyo
Method
POST
Offering type
Api Endpoint
Transport type
http
Category
General Utilities
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://mailcheck.hugen.tokyo/mailcheck/validate
MIME type
Not provided
First seen
2026-10-16T01:57:40.935Z
Last seen
Tags
None supplied

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.01 USDC
Atomic price: 10000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 2
0.01 USDC
Atomic price: 10000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "payTo": "0x29322Ea7EcB34aA6164cb2ddeB9CE650902E4f60"
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "10000",
    "payTo": "4du4AfkjJEwch2zk3shkPJVZfyJHNDnNjEWC6AboaS5Z"
  }
]

Observed health

Status
Reachable
Latest latency
1295 ms
Average latency
1425 ms
HTTP status
405
Last checked
Reachability
100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "http",
  "method": "POST",
  "example": {
    "email": "user@gmail.com"
  },
  "bodyType": "json"
}

Output schema

{
  "example": {
    "checks_performed": [
      "syntax",
      "mx",
      "disposable",
      "free",
      "role",
      "typo"
    ],
    "did_you_mean": null,
    "domain": "gmail.com",
    "email": "user@gmail.com",
    "is_disposable": false,
    "is_free": true,
    "is_role_based": false,
    "mx_found": true,
    "mx_records": [
      "gmail-smtp-in.l.google.com"
    ],
    "score": 0.95,
    "status": "valid",
    "syntax_valid": true
  },
  "type": "json"
}