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ipv4.fr Network Tools

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

Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http ipv4-fr-network-tools 'https://ipv4.fr/mcp' --header 'X-Api-Key: <Optional ipv4.fr API key for higher limits (https://ipv4.fr/pricing). Without it: 20 free calls per day.>'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "ipv4-fr-network-tools": {
            "type": "http",
            "url": "https://ipv4.fr/mcp",
            "headers": {
                "X-Api-Key": "<Optional ipv4.fr API key for higher limits (https://ipv4.fr/pricing). Without it: 20 free calls per day.>"
            }
        }
    }
}

Frequently asked questions

What is ipv4.fr Network Tools?

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

How do I install ipv4.fr Network Tools?

It runs as a remote server. In Claude Code: claude mcp add --transport http ipv4-fr-network-tools 'https://ipv4.fr/mcp' --header 'X-Api-Key: <Optional ipv4.fr API key for higher limits (https://ipv4.fr/pricing). Without it: 20 free calls per day.>'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does ipv4.fr Network Tools need an API key?

Yes. It expects X-Api-Key, which you set in its configuration.

Who maintains ipv4.fr Network Tools?

It is published by fr.ipv4. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.