Census (ACS by ZIP) runs on your own machine — the client starts it, so there is no endpoint to ping. 102 installs a week from pypi. Last commit 20 Aug 2026.
U.S. Census (ACS) data by ZIP: income, demographics, housing, education, from a local store.
Today is the operative word: we check Census (ACS by ZIP) 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 census-mcp -e 'CENSUS_API_KEY=<CENSUS_API_KEY>' -- uvx mcpwright-census
{
"mcpServers": {
"census-mcp": {
"command": "uvx",
"args": [
"mcpwright-census"
],
"env": {
"CENSUS_API_KEY": "<CENSUS_API_KEY>"
}
}
}
}
[mcp_servers.census-mcp]
command = "uvx"
args = ["mcpwright-census"]
env = { CENSUS_API_KEY = "<CENSUS_API_KEY>" }
{
"mcpServers": {
"census-mcp": {
"command": "uvx",
"args": [
"mcpwright-census"
],
"env": {
"CENSUS_API_KEY": "<CENSUS_API_KEY>"
}
}
}
}
{
"servers": {
"census-mcp": {
"type": "stdio",
"command": "uvx",
"args": [
"mcpwright-census"
],
"env": {
"CENSUS_API_KEY": "<CENSUS_API_KEY>"
}
}
}
}
Put your own value in place of
<CENSUS_API_KEY> (Free Census API key (get one at https://api.census.gov/data/key_signup.html). Required for the one-time bulk download of the ACS dataset).
The author’s registry entry marks it as required.
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Answers built from our own checks of this server.