x402 DNS Email Auth Checker

{
  "mcpServers": {
    "dev.workers.microtools-x402.x402-dns-auth-checker/dns-auth-checker": {
      "url": "https://x402-dns-auth-checker.microtools-x402.workers.dev/mcp"
    }
  }
}

Indexed tools

Tool metadata and schemas come from the remote server and are untrusted. Indexing only lists tools; it never calls them.

2 shown · authentication unknown

• domain_auth_check

  Audit a domain's email authentication DNS: SPF (record count, all qualifier, includes, ~DNS lookups vs 10 limit), DMARC (p, sp, pct, rua/ruf, adkim/aspf), DKIM (common or given selectors, key type and length), MX, plus BIMI / MTA-STS / TLS-RPT presence. Returns per-check status, issues, recommendations, score 0-100 and grade A-F. Costs $0.003 USDC per call via x402.

  Schema valid · SHA-256 265c8b40244c…

  View input schema

  {
    "type": "object",
    "properties": {
      "domain": {
        "type": "string",
        "minLength": 1,
        "maxLength": 253,
        "description": "Domain to check, e.g. example.com"
      },
      "selectors": {
        "description": "DKIM selectors to try. Default: google, selector1, selector2, default, k1, s1, s2, mail, dkim",
        "maxItems": 20,
        "type": "array",
        "items": {
          "type": "string",
          "minLength": 1,
          "maxLength": 63
        }
      }
    },
    "required": [
      "domain"
    ],
    "$schema": "http://json-schema.org/draft-07/schema#"
  }

• health

  Free health check. Returns service status, price and network.

  Schema valid · SHA-256 966751252b1d…

  View input schema

  {
    "type": "object",
    "properties": {},
    "$schema": "http://json-schema.org/draft-07/schema#"
  }