Summary
Exposes DNS lookups, IP geolocation, SSL certificate inspection, WHOIS queries, and HTTP latency testing to Claude through Node.js built-in modules. You get A/AAAA/MX/TXT records, reverse DNS, and propagation checks across public resolvers. IP info pulls from ip-api.com for geolocation and ASN data. SSL checks give you certificate chains, expiry dates, and cipher details. HTTP ping runs multiple requests and returns p95 latency alongside min/max/avg stats. Useful when you're debugging connectivity, verifying DNS propagation after a change, checking certificate validity before expiry, or measuring endpoint performance without leaving your Claude conversation.
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Get the MCP →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
npm install
npm run build
Usage with Claude Desktop
Add to your claude_desktop_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
dns_lookup({ domain: "example.com", record_types: ["A", "MX"] })
Reverse DNS
dns_lookup({ domain: "8.8.8.8", mode: "reverse" })
DNS Propagation Check
dns_lookup({ domain: "example.com", mode: "propagation" })
IP Info
ip_info({ ip: "1.1.1.1" })
SSL Check
ssl_check({ host: "example.com" })
WHOIS Lookup
whois_lookup({ domain: "example.com" })
HTTP Ping
http_ping({ url: "https://example.com", count: 10 })
License
MIT
Featured
Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →Notes, actions and memory. Without a meeting bot. First month 100% off.
Download for free →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →