Civic Library MCP Server

by adriancisnerosspeed-hubio.github.adriancisnerosspeed-hub/civic-library-mcpv0.1.1

US civic & property data: geocoding, census tracts, Opportunity Zones, FEMA flood zones.

1Node.jsstdioofficial registry

context tax

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security

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cold start

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freshness

Slowing4mo ago

Install Civic Library MCP server

claude mcp add civic-library -e CENSUS_API_KEY='<census-api-key>' -- npx -y civic-library-mcp

{
  "mcpServers": {
    "civic-library": {
      "command": "npx",
      "args": [
        "-y",
        "civic-library-mcp"
      ],
      "env": {
        "CENSUS_API_KEY": "<census-api-key>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "civic-library": {
      "command": "npx",
      "args": [
        "-y",
        "civic-library-mcp"
      ],
      "env": {
        "CENSUS_API_KEY": "<census-api-key>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "civic-library": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "civic-library-mcp"
      ],
      "env": {
        "CENSUS_API_KEY": "<census-api-key>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "civic-library": {
      "command": "npx",
      "args": [
        "-y",
        "civic-library-mcp"
      ],
      "env": {
        "CENSUS_API_KEY": "<census-api-key>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
CENSUS_API_KEY	—	yes	Free Census API key (https://api.census.gov/data/key_signup.html). Required only for the get_tract_demographics tool; all other tools work with no key.

Freshness

Slowing — last maintenance signal 4mo ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-06-16 · 4mo ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-06-16 · 4mo ago · official registry · v0.1.1

FAQ

›How do I install the Civic Library MCP server in Claude Code?

Run: claude mcp add civic-library -e CENSUS_API_KEY='<census-api-key>' -- npx -y civic-library-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Civic Library require an API key?

Yes. It expects CENSUS_API_KEY, of which 1 is a secret.

›Can I use Civic Library as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is Civic Library in the official MCP registry?

Yes, as io.github.adriancisnerosspeed-hub/civic-library-mcp.