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ipv4.fr Network Tools

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fr.ipv4/network-toolsv1.0.0 Domain verified

DNS, WHOIS, SSL, IP geolocation, email validation, DNSBL blacklist, HTTP headers, subnet calc.

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https://ipv4.fr/mcp

X-Api-Key (optional)

Optional ipv4.fr API key for higher limits (https://ipv4.fr/pricing). Without it: 20 free calls per day.

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Tool list from our last check. Connect live to refresh it.

dns_lookup Read-only

DNS records for a domain (A, AAAA, MX, TXT, NS by default; also CNAME, SOA).

domainstring, required

Domain name, e.g. example.com

typesarray

ipv4.fr Network Tools MCP server | mcptry

Tools (9)

dns_lookup

DNS records for a domain (A, AAAA, MX, TXT, NS by default; also CNAME, SOA).

read-only

Argument	Type	Description
types	array
domain*	string	Domain name, e.g. example.com

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "domain"
  ],
  "properties": {
    "types": {
      "type": "array",
      "items": {
        "enum": [
          "A",
          "AAAA",
          "MX",
          "TXT",
          "CNAME",
          "NS",
          "SOA"
        ],
        "type": "string"
      }
    },
    "domain": {
      "type": "string",
      "description": "Domain name, e.g. example.com"
    }
  },
  "additionalProperties": false
}

domain_audit

AI security audit of a domain: DNS, SPF, DMARC, TLS, HTTP security headers, WHOIS expiry and IP blacklists, returned as a 0-100 score, findings by severity and exact fixes. Requires a paid ipv4.fr API key (X-Api-Key header); uses 10 requests of the daily limit. Without a key, pay per call with x402 (0.05 USDC on Base).

read-only

Argument	Type	Description
domain*	string	Domain name, e.g. example.com

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "domain"
  ],
  "properties": {
    "domain": {
      "type": "string",
      "description": "Domain name, e.g. example.com"
    }
  },
  "additionalProperties": false
}

email_validate

Validate an email address: syntax, MX records, SMTP check, disposable and role-based detection.

read-only

Argument	Type	Description
email*	string	Email address

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "email"
  ],
  "properties": {
    "email": {
      "type": "string",
      "maxLength": 254,
      "description": "Email address"
    }
  },
  "additionalProperties": false
}

http_headers

HTTP response headers and status of a public URL (HEAD request, redirects followed and checked).

read-only

Argument	Type	Description
url*	string	URL or domain, e.g. https://example.com

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "url"
  ],
  "properties": {
    "url": {
      "type": "string",
      "description": "URL or domain, e.g. https://example.com"
    }
  },
  "additionalProperties": false
}

ip_blacklist

Check an IPv4 address against 3 DNS blacklists (Barracuda, SpamCop, UCEPROTECT).

read-only

Argument	Type	Description
ip*	string	IPv4 address

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "ip"
  ],
  "properties": {
    "ip": {
      "type": "string",
      "description": "IPv4 address"
    }
  },
  "additionalProperties": false
}

ip_geolocation

Geolocation of an IP address: country, city, ISP, coordinates, timezone.

read-only

Argument	Type	Description
ip*	string	IPv4 or IPv6 address

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "ip"
  ],
  "properties": {
    "ip": {
      "type": "string",
      "description": "IPv4 or IPv6 address"
    }
  },
  "additionalProperties": false
}

ssl_check

TLS certificate of a host: validity, issuer, expiry, days remaining, SAN.

read-only

Argument	Type	Description
host*	string	Hostname or public IP
port	integer

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "host"
  ],
  "properties": {
    "host": {
      "type": "string",
      "description": "Hostname or public IP"
    },
    "port": {
      "type": "integer",
      "maximum": 65535,
      "minimum": 1
    }
  },
  "additionalProperties": false
}

subnet_calc

IPv4 subnet calculator from CIDR: network, broadcast, netmask, wildcard, host range, host count.

read-only

Argument	Type	Description
cidr*	string	CIDR notation, e.g. 192.168.1.0/24

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "cidr"
  ],
  "properties": {
    "cidr": {
      "type": "string",
      "description": "CIDR notation, e.g. 192.168.1.0/24"
    }
  },
  "additionalProperties": false
}

whois

WHOIS registration data for a domain: registrar, creation and expiry dates, name servers.

read-only

Argument	Type	Description
domain*	string	Domain name, e.g. example.com

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "domain"
  ],
  "properties": {
    "domain": {
      "type": "string",
      "description": "Domain name, e.g. example.com"
    }
  },
  "additionalProperties": false
}