ip-mcp

MCP server: classify, test, and expand IPv4/IPv6 addresses. No external deps — uses Node's built-in net plus first-principles bit math.

Tools

info

{ "address": "10.0.0.1" }

→

{
  "address": "10.0.0.1",
  "version": 4,
  "is_private": true,
  "is_loopback": false,
  "is_link_local": false,
  "is_multicast": false,
  "is_unspecified": false
}

Works for both v4 (RFC 1918) and v6 (ULA fc00::/7, link-local fe80::/10, multicast ff00::/8).

contains

{ "cidr": "192.168.1.0/24", "address": "192.168.1.99" }

→ { "contains": true }

Works for both v4 and v6 CIDR blocks. Mismatched versions throw.

expand

{ "address": "2001:db8::1" }

→ { "expanded": "2001:0db8:0000:0000:0000:0000:0000:0001" }

Configure

{ "mcpServers": { "ip": { "command": "npx", "args": ["-y", "@mukundakatta/ip-mcp"] } } }

License

MIT.