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Census ACS Demographics MCP Server

by olyport Your server? Claim it
answering

Census ACS Demographics is answering right now. Last checked 12 min ago. It exposes 5 tools.

Population, income, poverty, education, housing, and commuting from the US Census ACS

Uptime history 47 days of history
47 days agonow
100.0%
Uptime 24h
91 of 91 checks
5
Tools
read from the server
546 ms
Response time
average over 24h
open, no key
Access
streamable-http

Nothing serious here today

Today is the operative word: we check Census ACS Demographics every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 12 min ago.

run in your terminal
claude mcp add census --transport http https://mcp.olyport.com/census/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "census": {
      "url": "https://mcp.olyport.com/census/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.census]
url = "https://mcp.olyport.com/census/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "census": {
      "url": "https://mcp.olyport.com/census/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "census": {
      "url": "https://mcp.olyport.com/census/mcp"
    }
  }
}

Available tools 5

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

county
get_county_demographics
Get demographic data for counties: population, median age, race, Hispanic origin, income, and poverty. Returns one record per county with total population, median age, racial breakdown (White, Black, American Indian, Asian, Pacific Islander, Other, Two+), Hispanic/Latino percentage, median household income, and poverty rate. Args: state: Two-letter state abbreviation (e.g. 'WA', 'CA') or 2-digit FIPS code. county_fips: Three-digit county FIPS code (e.g. '033' for King County). Omit to get all counties in the state. year: ACS 5-year estimate year (default 2022). Data covers year-4 through year.
get_county_economics
Get economic data for counties: income, poverty, home values, rent, and health insurance. Returns median household income, poverty rate, median home value, median gross rent, and health insurance coverage rates (insured vs uninsured). Args: state: Two-letter state abbreviation (e.g. 'WA', 'CA') or 2-digit FIPS code. county_fips: Three-digit county FIPS code (e.g. '033' for King County). Omit to get all counties in the state. year: ACS 5-year estimate year (default 2022).
get_county_education
Get educational attainment for counties (population 25+). Returns counts and percentages for: less than high school, high school diploma/GED, some college/associate degree, bachelor's degree, and graduate/professional degree. Args: state: Two-letter state abbreviation (e.g. 'WA', 'CA') or 2-digit FIPS code. county_fips: Three-digit county FIPS code (e.g. '033' for King County). Omit to get all counties in the state. year: ACS 5-year estimate year (default 2022).
commuting
get_commuting_data
Get means of transportation to work data for counties. Returns worker counts and percentages for: drove alone, carpooled, public transit, walked, bicycle, taxi/motorcycle/other, and worked from home. Args: state: Two-letter state abbreviation (e.g. 'WA', 'CA') or 2-digit FIPS code. county_fips: Three-digit county FIPS code (e.g. '033' for King County). Omit to get all counties in the state. year: ACS 5-year estimate year (default 2022).
tract
get_tract_data
Get tract-level ACS data for any variables within a county. This is a flexible tool for querying any ACS 5-year estimate variables at the census tract level. Automatically batches requests if more than 50 variables are requested. Common variable examples: - B01001_001E: Total population - B19013_001E: Median household income - B17001_002E: Population below poverty level - B25077_001E: Median home value - B02001_002E-008E: Race breakdown Args: state: Two-letter state abbreviation (e.g. 'WA') or 2-digit FIPS code. county_fips: Three-digit county FIPS code (e.g. '033' for King County, WA). variables: Comma-separated ACS variable codes (e.g. 'B01001_001E,B19013_001E'). NAME is always included automatically. year: ACS 5-year estimate year (default 2022).

Endpoints

URLTransportStateLatencyChecked
https://mcp.olyport.com/census/mcp streamable-http answering 550 ms 12 min ago

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Census ACS Demographics — questions

Answers built from our own checks of this server.

What can Census ACS Demographics do?
It exposes 5 tools, read directly from the server on our last check. Among them: get_commuting_data, get_county_demographics, get_county_economics, get_county_education, get_tract_data. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Census ACS Demographics working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 546 ms. The bar chart above shows every period we have measured.
How do I connect Census ACS Demographics?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Census ACS Demographics need an API key?
No. Census ACS Demographics completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 5 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Census ACS Demographics?
It answers our handshake in 546 ms on average, which is faster than 25% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.