# Census ACS Demographics

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

- name: com.olyport/census
- version: 1.1.0
- connection class: R0 (autonomous)
- trust: 72/100 flags: no-repository
- quality: 79/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.olyport%2Fcensus
- tools: https://api.protogrid.dev/v1/servers/com.olyport%2Fcensus/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "census": {
      "type": "http",
      "url": "https://mcp.olyport.com/census/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 100
- freshness: 45
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-100% -stale-201d -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 79/100 (good)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 71 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- fail `tools.annotations`: no tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
- fail `tools.directory_hints`: no tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: get_county_education (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_county_demographics (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_county_economics (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
- pass `tools.token_cost`: about 1,143 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: no tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 5, about 1,143 tokens to load them all
- tool set hash: 8fe2cbb7609dd618cd1ba88a32af6a9e
- badge: [![protogrid quality](https://protogrid.dev/badge/com.olyport/census.svg)](https://protogrid.dev/servers/com.olyport/census)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

_No tool definition changes recorded._

## Remotes

- https://mcp.olyport.com/census/mcp (streamable-http, auth none, reachable true, uptime30d 1)

## Packages

_none_

## Tools (5)

- `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).
    
- `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).
    
- `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).
    
