ZBS Index What actually exists in applied AI, with the source next to it

mcp server

Census ACS Demographics

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

Description as published by the maintainer. Source

  • version 1.1.0
  • slowing

slowing — Registry entry last updated 2026-04-02.

What this server can do

5 functions, named and described by the server itself. Parameter names are shown because they say more about what a function does than its name usually does.

get_commuting_data(year, state, county_fips)
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). Required: state.
get_county_demographics(year, state, county_fips)
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. Required: state.
get_county_economics(year, state, county_fips)
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). Required: state.
get_county_education(year, state, county_fips)
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). Required: state.
get_tract_data(year, state, variables, county_fips)
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). Required: state, county_fips, variables.

Last successful function declaration observed on . Source: https://mcp.olyport.com/census/mcp. We list what the server declared; we do not call any of these functions.

Endpoint status observed on . Source: https://mcp.olyport.com/census/mcp.

Signals

These are separate measurements of different things. They are deliberately not combined into one score, because a popularity number that mixes website traffic with saves and stars cannot be checked or acted on.

Signal Value What it measures Window Observed Source
Latest published version 1.1.0 Latest version string the maintainer published to the registry. as of fetch Model Context Protocol
Registry record last updated 2026-04-02 When the registry record was last updated by its maintainer. point in time Model Context Protocol
First listed in the MCP Registry 2026-04-02 Date this server was first published to the official MCP Registry. Not a usage or quality measure. point in time Model Context Protocol
mcp tools declared 5 tools Number of functions the server itself declared when asked to list them. This is what the server offers an agent, not a measure of how well any of them work. as of probe mcp.olyport.com
mcp endpoint status ok The server listed 5 functions when asked. as of probe mcp.olyport.com

Where to get it

This record as data

Every field on this page, with its source and observation date, is in the catalog JSON. Fetch the whole kind at once instead of parsing this HTML.

GET /api/v1/entries/mcp_server.json

Sources

  1. Tools declared by the MCP server at https://mcp.olyport.com/census/mcp — mcp.olyport.com, observed , trust tier 1.
  2. Official MCP Registry — Model Context Protocol, observed , trust tier 1.