mcp-network-tools

Network diagnostics tools for AI agents, exposed via the Model Context Protocol (MCP).

Tools

Tool	Description
`dns_lookup`	Resolve domains to DNS records (A, AAAA, MX, TXT, NS, CNAME, SOA). Reverse DNS. Propagation check across public DNS servers.
`ip_info`	Geolocation and network info for an IP address — country, city, ISP, ASN, coordinates. IPv4 and IPv6.
`ssl_check`	Inspect SSL/TLS certificates — validity, issuer, expiry, SANs, certificate chain, cipher, protocol.
`whois_lookup`	WHOIS data for a domain — registrar, creation/expiry dates, nameservers, status.
`http_ping`	Measure HTTP response time over N requests. Returns avg, min, max, p95 latency and success rate.

Setup

Terminal

npm install
npm run build

Usage with Claude Desktop

Add to your claude_desktop_config.json:

config.json

{
  "mcpServers": {
    "network-tools": {
      "command": "node",
      "args": ["D:/products/mcp-servers/mcp-network-tools/dist/index.js"]
    }
  }
}

Dependencies

@modelcontextprotocol/sdk — MCP server framework
Node.js built-in modules — dns, tls, net, https, http (no external runtime dependencies beyond MCP SDK)
ip-api.com — free geolocation API (no API key required)

Examples

DNS Lookup

Code

dns_lookup({ domain: "example.com", record_types: ["A", "MX"] })

Reverse DNS

Code

dns_lookup({ domain: "8.8.8.8", mode: "reverse" })

DNS Propagation Check

Code

dns_lookup({ domain: "example.com", mode: "propagation" })

IP Info

Code

ip_info({ ip: "1.1.1.1" })

SSL Check

Code

ssl_check({ host: "example.com" })

WHOIS Lookup

Code

whois_lookup({ domain: "example.com" })

HTTP Ping

Code

http_ping({ url: "https://example.com", count: 10 })

License

MIT