Server definition

Hash: sha256:9bca9fdd657d297fa4d50ef2d750b97a57f0c595a5354d1a4d0458130b70d383
What it is: What a remote MCP server returned when asked what it offers: 7 tools

The blob, as servednamed by its sha256

{
  "instructions": "MX Verdict (mxverdict.com) runs free, read-only email and DNS checks: SPF, DKIM, DMARC, MX, DNS records, blocklists, and a whole-domain email health check. The tools only read public DNS and public blocklists; they never send email. Every result ends with a link to the full report on mxverdict.com; give it to the user. Identical checks within 60 seconds return the same result. Checks are rate limited per client IP address, the same limits as the website; a rate-limited tool result says how long to wait.",
  "tools": [
    {
      "description": "Check whether an IP address or a domain is listed on public DNS blocklists (DNSBLs). A domain is checked on domain blocklists only; to check a mail server, give its IP address.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "target": {
            "description": "One IPv4 or IPv6 address, or one domain name.",
            "maxLength": 512,
            "type": "string"
          }
        },
        "required": [
          "target"
        ],
        "type": "object"
      },
      "name": "check_blacklist",
      "outputSchema": null
    },
    {
      "description": "Check a domain's DKIM public keys in DNS. With a selector (the s= tag of a DKIM-Signature header), checks that selector's key; without one, probes common selector names. Finding no key on common names does not prove DKIM is missing: selectors cannot be listed from DNS.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "domain": {
            "description": "Domain name, for example example.com.",
            "maxLength": 512,
            "type": "string"
          },
          "selector": {
            "description": "DKIM selector, for example google or selector1. Leave out to probe common selectors.",
            "maxLength": 253,
            "type": "string"
          }
        },
        "required": [
          "domain"
        ],
        "type": "object"
      },
      "name": "check_dkim",
      "outputSchema": null
    },
    {
      "description": "Check a domain's DMARC record: whether it exists and is valid, its policy (none, quarantine or reject), alignment, and where reports are sent.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "domain": {
            "description": "Domain name, for example example.com.",
            "maxLength": 512,
            "type": "string"
          }
        },
        "required": [
          "domain"
        ],
        "type": "object"
      },
      "name": "check_dmarc",
      "outputSchema": null
    },
    {
      "description": "Check everything about a domain's email setup in one call: SPF, DMARC, MX, DKIM on common selectors, domain blocklists, MTA-STS, TLS-RPT and BIMI. Use it for a general question such as \"is email set up correctly for example.com\".",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "domain": {
            "description": "Domain name, for example example.com.",
            "maxLength": 512,
            "type": "string"
          }
        },
        "required": [
          "domain"
        ],
        "type": "object"
      },
      "name": "check_email_domain",
      "outputSchema": null
    },
    {
      "description": "Check a domain's SPF record: whether it exists and is valid, how many of the 10 allowed DNS lookups it uses, and how its all mechanism treats mail from servers that are not listed.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "domain": {
            "description": "Domain name, for example example.com.",
            "maxLength": 512,
            "type": "string"
          }
        },
        "required": [
          "domain"
        ],
        "type": "object"
      },
      "name": "check_spf",
      "outputSchema": null
    },
    {
      "description": "Look up DNS records of a name. Type ALL (the default) queries A, AAAA, CNAME, MX, NS, TXT, SOA and CAA; any single type can be asked for. An IP address gives its reverse DNS (PTR) lookup.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "name": {
            "description": "Domain name or IP address, for example example.com or _dmarc.example.com.",
            "maxLength": 512,
            "type": "string"
          },
          "type": {
            "description": "Record type; ALL when left out.",
            "enum": [
              "ALL",
              "A",
              "AAAA",
              "CNAME",
              "MX",
              "NS",
              "PTR",
              "SOA",
              "TXT",
              "CAA",
              "SRV",
              "DS",
              "DNSKEY",
              "TLSA",
              "HTTPS",
              "SVCB"
            ],
            "type": "string"
          }
        },
        "required": [
          "name"
        ],
        "type": "object"
      },
      "name": "dns_lookup",
      "outputSchema": null
    },
    {
      "description": "Look up a domain's MX records (its incoming mail servers), their IP addresses and reverse DNS. DNS only: it does not connect to the mail servers.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "domain": {
            "description": "Domain name, for example example.com.",
            "maxLength": 512,
            "type": "string"
          }
        },
        "required": [
          "domain"
        ],
        "type": "object"
      },
      "name": "lookup_mx",
      "outputSchema": null
    }
  ]
}

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