Census Mcp

io.github.mrfentmenPublished by GitHub account mrfentmenv1.0.1Updated Oct 24, 2026

US Census population data by nation, state, and county. Requires a free Census API key.

VerifiedSTDIODesktop onlyData & Analytics

Overview

AI-generated overview

Lets an assistant look up US Census population data for the nation, states, and counties.

What you can do
This local MCP server exposes US Census population figures, organized by nation, state, and county. It is installed as an npm package and runs as a local process over stdio. The registry description does not list individual tools, so the exact query and output shapes are not documented here.
When to use it
Worth adding when an assistant needs US population counts or comparisons across the country, states, or counties as part of an analysis or answer. It is a narrow data source, so it is not useful for non-US or non-census data.
Requirements
Runs locally as an npm package (census-mcp) over stdio, so Node.js and npm are needed. A free US Census API key is required according to the description, though the manifest declares no environment variables or headers.
Before you install
The description states a free Census API key is required, but the manifest declares no environment variable or header for it, so how the key is supplied is unclear and should be checked before installing. No write, payment, or wallet behavior is described.

Installation

In SourceWeft

  1. Open Census 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. v1.0.1LatestSep 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.