Postal Lookup MCP Server

by lulu-the-narwhal Your server? Claim it

answering

Postal Lookup MCP is answering right now. Last checked 1 min ago. It exposes 1 tools.

Free, keyless postal/ZIP code lookup: place name(s), state/region, and coordinates.

The linked repository no longer exists on GitHub — it was deleted or made private.

Uptime history 25 days of history · worst day 0%

25 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

229 ms

Response time

average over 24h

open, no key

Access

streamable-http

This one has been quiet for a while

Quiet is not dead — but it is worth knowing when it wakes up, or when someone else takes it over. We watch the repository and tell you either way.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 1 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add postal-lookup-mcp --transport http https://ads.getlulu.dev/postal/mcp

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

{
  "mcpServers": {
    "postal-lookup-mcp": {
      "url": "https://ads.getlulu.dev/postal/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.postal-lookup-mcp]
url = "https://ads.getlulu.dev/postal/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "postal-lookup-mcp": {
      "url": "https://ads.getlulu.dev/postal/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "postal-lookup-mcp": {
      "url": "https://ads.getlulu.dev/postal/mcp"
    }
  }
}

Available tools 1

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

lookup

lookup_postal_code

Resolve a postal/ZIP code to its place name(s), state/region, and coordinates. `country_code` is a 2-letter ISO code (US, GB, DE, ...); `postal_code` format varies by country (e.g. "90210" for the US, "SW1A 1AA" style outward codes for the UK). Use for "what city is ZIP 90210 in", "where is postal code X in country Y", or any question that needs a place name/region/lat-lon from a postal code -- not for the reverse (place name to postal code) or for full street address lookup. Some postal codes span multiple places, in which case all of them are returned. Returns an error dict (never raises) if the code isn't recognized for that country.

Endpoints

URL	Transport	State	Latency	Checked
https://ads.getlulu.dev/postal/mcp	streamable-http	answering	1484 ms	1 min ago

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Postal Lookup MCP — questions

Answers built from our own checks of this server.

What can Postal Lookup MCP do?

It exposes 1 tools, read directly from the server on our last check. Among them: lookup_postal_code. 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 Postal Lookup MCP working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 229 ms. The bar chart above shows every period we have measured.

Is Postal Lookup MCP still maintained?

The linked repository no longer exists on GitHub — it was deleted or made private. We show this because it changes what you can expect: an unmaintained server may keep answering for months and then stop without warning.

How do I connect Postal Lookup MCP?

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 Postal Lookup MCP need an API key?

No. Postal Lookup MCP completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 1 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Postal Lookup MCP?

It answers our handshake in 229 ms on average, which is faster than 67% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.