{
  "x402Version": 2,
  "id": 55177,
  "slug": "55177",
  "resource": "https://mailcheck.hugen.tokyo/mailcheck/mx",
  "description": "MX record lookup for any domain — returns whether mail servers exist and their hostnames sorted by priority. Verify email deliverability before sending. Supports all TLDs including ccTLDs and new gTLDs. No DNS library setup needed. Accepts USDC payments on Base and Solana",
  "type": "http",
  "resourceType": "Identity & Enrichment",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0x29322Ea7EcB34aA6164cb2ddeB9CE650902E4f60",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "10000",
      "amountUsd": 0.01,
      "maxTimeoutSeconds": 300
    },
    {
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "4du4AfkjJEwch2zk3shkPJVZfyJHNDnNjEWC6AboaS5Z",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "amount": "10000",
      "amountUsd": 0.01,
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "example": {
      "domain": "gmail.com",
      "mx_found": true,
      "mx_records": [
        "gmail-smtp-in.l.google.com",
        "alt1.gmail-smtp-in.l.google.com"
      ]
    },
    "type": "json"
  },
  "extensions": {
    "bazaar": {
      "category": "email-validation",
      "discoverable": true,
      "info": {
        "input": {
          "method": "GET",
          "queryParams": {
            "domain": "gmail.com"
          },
          "type": "http"
        },
        "output": {
          "example": {
            "domain": "gmail.com",
            "mx_found": true,
            "mx_records": [
              "gmail-smtp-in.l.google.com",
              "alt1.gmail-smtp-in.l.google.com"
            ]
          },
          "type": "json"
        }
      },
      "schema": {
        "properties": {
          "input": {
            "required": [
              "method"
            ]
          }
        }
      },
      "tags": [
        "email",
        "mx",
        "disposable"
      ]
    }
  },
  "tags": [
    "bazaar"
  ],
  "sourceHost": "mailcheck.hugen.tokyo",
  "lastUpdated": "2026-10-08T05:40:45.978Z",
  "quality": {
    "calls30d": 4,
    "uniquePayers30d": 4,
    "lastCalledAt": "2026-10-08T05:40:45.292Z"
  },
  "metadata": {
    "extensions": {
      "bazaar": {
        "category": "email-validation",
        "discoverable": true,
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "domain": "gmail.com"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "domain": "gmail.com",
              "mx_found": true,
              "mx_records": [
                "gmail-smtp-in.l.google.com",
                "alt1.gmail-smtp-in.l.google.com"
              ]
            },
            "type": "json"
          }
        },
        "schema": {
          "properties": {
            "input": {
              "required": [
                "method"
              ]
            }
          }
        },
        "tags": [
          "email",
          "mx",
          "disposable"
        ]
      }
    }
  },
  "liveness": {
    "reliability": null
  },
  "verified": false,
  "featured": false,
  "provider": {
    "host": "mailcheck.hugen.tokyo",
    "manifest_name": "mailcheck.hugen.tokyo",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-10-14T01:15:01.050Z"
  },
  "exampleResponse": {
    "domain": "gmail.com",
    "mx_found": true,
    "mx_records": [
      "gmail-smtp-in.l.google.com",
      "alt1.gmail-smtp-in.l.google.com"
    ]
  }
}