IP.LS — IP Lookup Service MCP Server

by ip Your server? Claim it

answering

IP.LS — IP Lookup Service is answering right now. Last checked 12 min ago. It exposes 5 tools.

Keyless IP geolocation, ASN/ISP, timezone and DNS records for any IP or domain, plus your own IP.

Uptime history 16 hours of history

16 hours agonow

100.0%

Uptime 24h

58 of 58 checks

Tools

read from the server

745 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check IP.LS — IP Lookup Service every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 12 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add ipls-ip-lookup-service --transport http https://ip.ls/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "ipls-ip-lookup-service": {
      "url": "https://ip.ls/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.ipls-ip-lookup-service]
url = "https://ip.ls/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "ipls-ip-lookup-service": {
      "url": "https://ip.ls/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "ipls-ip-lookup-service": {
      "url": "https://ip.ls/mcp"
    }
  }
}

Available tools 5

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

headers

headers

Return all HTTP request headers as seen by the IP.LS server (including X-Real-IP / X-Forwarded-For injected by the frontend proxy). Useful for debugging proxies and client identity.

lookup

ip_lookup

Look up geolocation, ISP and network info for any IPv4/IPv6 address or hostname, or an array of them for batch lookup. Returns ip, city, region, country, coordinates, ASN/ISP, timezone and continent (full name, e.g. North America); when a domain is queried, an extra `domain` field echoes it. Data source: DB-IP Lite (CC BY 4.0). Anycast IPs are approximate.

resolved

ip_resolved

Resolve a domain to all its A and AAAA records (deduplicated, up to 6) and return geolocation for each address. Returns an array of { ip, protocol, domain, city, region, country, coordinates, ASN/ISP, ... }. For a bare IP, returns a single-element array.

self

ip_self

Get geolocation and network info about the caller's own public IP, plus the protocol stack (IPv4/IPv6) of the current connection. On dual-stack machines the stack is chosen by the client and may differ from `curl ip.ls`, which picks a random stack; use curl -4/-6 locally to get the other stack, or — for clients that cannot pick a stack (browser, PowerShell, most HTTP libraries) — the single-stack hostnames https://4.ip.ls / https://6.ip.ls (DNS selects the stack; an unreachable 6.ip.ls means no usable IPv6). Data comes from a server-side GeoIP lookup on the caller's real IP.

ua

Return the User-Agent string of the current HTTP client.

Endpoints

URL	Transport	State	Latency	Checked
https://ip.ls/mcp	streamable-http	answering	678 ms	12 min ago

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IP.LS — IP Lookup Service — questions

Answers built from our own checks of this server.

What can IP.LS — IP Lookup Service do?

It exposes 5 tools, read directly from the server on our last check. Among them: headers, ip_lookup, ip_resolved, ip_self, ua. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is IP.LS — IP Lookup Service working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 58 of 58 checks got a reply (100.0%), average response time 745 ms. The bar chart above shows every period we have measured.

How do I connect IP.LS — IP Lookup Service?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does IP.LS — IP Lookup Service need an API key?

No. IP.LS — IP Lookup Service completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 5 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is IP.LS — IP Lookup Service?

It answers our handshake in 745 ms on average, which is faster than 16% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.