Civic Library MCP runs on your own machine — the client starts it, so there is no endpoint to ping. 32 installs a week from npm. Last commit 16 Jun 2026.
US civic & property data: geocoding, census tracts, Opportunity Zones, FEMA flood zones.
Today is the operative word: we check Civic Library MCP every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add civic-library-mcp -- npx -y civic-library-mcp
{
"mcpServers": {
"civic-library-mcp": {
"args": [
"-y",
"civic-library-mcp"
],
"command": "npx"
}
}
}
[mcp_servers.civic-library-mcp]
command = "npx"
args = ["-y", "civic-library-mcp"]
{
"mcpServers": {
"civic-library-mcp": {
"args": [
"-y",
"civic-library-mcp"
],
"command": "npx"
}
}
}
{
"mcpServers": {
"civic-library-mcp": {
"args": [
"-y",
"civic-library-mcp"
],
"command": "npx"
}
}
}
This one needs environment variables set before it will start:
CENSUS_API_KEY (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.).
The author declared them in the registry entry; get the values from the project itself.
City of Tampa GIS — Tampa, Florida open geospatial data (ArcGIS).
City geocoding and timezone resolution for birth data, for AI agents, one API key.
Official Mexican data for AI agents: CURP, RFC, CFDI, postal codes, phone, SPEI/CEP, DOF, geocoding.
Zoning, ADU eligibility, flood zone, setbacks, and buildability intelligence for U.S. parcels.
Georgia education, Census, and immigration data: query, filter, aggregate, and link datasets.
City of Flagstaff GIS — Flagstaff, Arizona open geospatial data (ArcGIS).
City of Sarasota GIS — Sarasota, Florida open geospatial data (ArcGIS).
City of Lakeland GIS — Lakeland, Florida open geospatial data (ArcGIS).
Answers built from our own checks of this server.