Zip Codes Mcp

io.github.mrfentmenPublished by GitHub account mrfentmenv1.0.0Updated Oct 24, 2026

Look up US postal codes, cities, and states from Zippopotam. No key required.

The publisher's own server: Zip-Codes.com Location Intelligence: Spatial Analysis, Districts & 14+ Years of Demographics

VerifiedSTDIODesktop onlyLocation & Lifestyle

Overview

AI-generated overview

A local MCP server that lets an assistant look up US postal codes, cities and states using the Zippopotam service, with no API key.

What you can do
Look up US postal codes and resolve them to the matching city and state, using the Zippopotam postal data service.
When to use it
Useful when an assistant needs to check or resolve US ZIP codes to city and state information, for example when cleaning addresses or answering location questions.
Requirements
Runs as a local process on the user's machine, installed from the npm package zip-codes-mcp over stdio. Node.js is needed. No API key or environment variables are declared. Network access to the Zippopotam service is required for lookups.
Before you install
Lookups are sent to the third-party Zippopotam service, so postal codes queried leave the machine. Coverage is limited to US postal codes, and results depend on that external service being available.

Installation

In SourceWeft

  1. Open Zip Codes Mcp in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

This repository has no README.

Tools

0
SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

1
  1. v1.0.0LatestSep 22, 2026

Score

25% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 days25 pts

    Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.

  • Auth declared10 pts

    Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.

  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • License10 pts

    Declare a license in the repository or the registry entry.

Other Zip-Codes integrations

Zip-Codes.com Location Intelligence: Spatial Analysis, Districts & 14+ Years of Demographics

com.zip-codesOfficial publisher

Zip-Codes.com Location Intelligence: Spatial Analysis, Districts & 14+ Years of Demographics's hosted MCP server, published by zip-codes.com; no sign-in required; Streamable HTTP; 12 tools.

Streamable HTTPWeb executable
Location & Lifestyle12 toolsNov 3, 2026