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mcp/harbor
Verified official

ipv4.fr Network Tools MCP

v1.0.0 changelog · 1

fr.ipv4/network-tools

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

transport:streamable-http tools:9
Website

Target client

run in your project directory 

claude mcp add --transport http network-tools https://ipv4.fr/mcp

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

dns_lookup

dns lookup

whois

whois

ssl_check

ssl check

ip_geolocation

ip geolocation

email_validate

email validate

ip_blacklist

ip blacklist

http_headers

http headers

subnet_calc

subnet calc

domain_audit

domain audit

All 9 tools, one page each

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.