# Census

> Census MCP — U.S. Census Bureau housing-relevant APIs.

- name: io.github.pipeworx-io/census
- version: 0.1.3
- connection class: R0 (autonomous)
- trust: 97/100
- quality: –/100 (not scored)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.pipeworx-io%2Fcensus
- tools: https://api.protogrid.dev/v1/servers/io.github.pipeworx-io%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://gateway.pipeworx.io/census/mcp"
    }
  }
}
```


## Trust

- hygiene: 100
- liveness: 100
- freshness: 100
- provenance: 90
- drivers: +repository +namespace-matches-repo +website +reachable +uptime-99% +updated-1d-ago
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality –/100 (not scored)

Not scored: fewer than three checks apply, usually because no remote answered a credential-free probe or the server is a local package.

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-03-26; 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: n/a (weight 30)

- n/a `tools.descriptions`, `tools.description_length`, `tools.schemas`, `tools.annotations`, `tools.directory_hints`, `tools.token_cost`, `tools.api_dump`: tool list unknown (behind auth, not probed, or empty)

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

- n/a `stability.changes`, `stability.rug_pull`: tool list unknown

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

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

- tools: unknown
- tools last changed: 2026-10-16T06:16:10.436Z
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.pipeworx-io/census.svg)](https://protogrid.dev/servers/io.github.pipeworx-io/census)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-16 `census_available_datasets` removed
  - Discover Census datasets and their variables. Returns dataset names, descriptions, and variable codes (e.g., B25001_001E) for querying with other census tools.
- 2026-10-16 `census_homeownership` removed
  - US homeownership rate and housing vacancy rates by quarter, from the Census Housing Vacancy Survey (HVS) — the official source. Returns `headline` (the national homeownership rate as a percent) plus the rental and homeowner vacancy rates. Defaults to the latest published quarter.
- 2026-10-16 `census_housing_starts` removed
  - Get residential construction pipeline by geography: new starts, units under construction, and completed units. Returns housing supply and activity trends.
- 2026-10-16 `census_building_permits` removed
  - Check monthly building permits for new residential construction by geography. Returns count of authorized privately-owned housing units and construction activity trends.
- 2026-10-16 `census_acs` removed
  - Median home value and median rent for a US ZIP CODE, city, town, county or state, from the American Community Survey — the keyless way to answer "what do homes cost in 33158" or "median home price in Miami-Dade County" at a grain below metro level. Pass the geography the way a person says it: a 5-digit ZIP ("33158"), a place with its state ("Palmetto Bay, FL"), a county ("Miami-Dade County, FL"), or a state ("Florida"); FIPS codes and raw Census "for" syntax also work. Median home value is B25077_001E and median gross rent is B25064_001E (B25003 is tenure counts, not rent); the same call also serves ownership rates, vacancy and any other ACS variable code. Values are 5-year survey estimates, so they describe a period rather than this month's asking prices.
- 2026-10-16 `census_population` removed
  - HOW MANY PEOPLE LIVE somewhere in the United States — the population of a county, city, town, ZIP code or state from the American Community Survey. Answers "population of Travis County Texas", "how many people live in Austin", "what is the population of 78701", "Ohio population". Say the place the way a person says it ("Travis County, TX", "Austin, TX", "78701", "Texas"); no FIPS codes and no variable codes needed. Also returns median age, household count and median household income for the same place when the survey publishes them. Figures are 5-year survey estimates, so they describe a period rather than a census-day headcount. For what homes cost or rent there, use census_acs.
- 2026-10-16 `forget` removed
  - Delete a previously stored memory by key. Use when context is stale, the task is done, or you want to clear sensitive data the agent saved earlier. Pair with remember and recall.
- 2026-10-16 `recall` removed
  - Retrieve a value previously saved via remember, or list all saved keys (omit the key argument). Use to look up context the agent stored earlier — the user's target ticker, an address, prior research notes — without re-deriving it from scratch. Scoped to your identifier (anonymous IP, BYO key hash, or account ID). Pair with remember to save, forget to delete.
- 2026-10-16 `remember` removed
  - Save data the agent will need to reuse later — across this conversation or across sessions. Use when you discover something worth carrying forward (a resolved ticker, a target address, a user preference, a research subject) so you don't have to look it up again. Stored as a key-value pair scoped by your identifier. Authenticated users get persistent memory; anonymous sessions retain memory for 24 hours. Pair with recall to retrieve later, forget to delete.
- 2026-10-16 `pipeworx_feedback` removed
  - Tell the Pipeworx team something is broken, missing, or needs to exist. Use when a tool returns wrong/stale data (bug), when a tool you wish existed isn't in the catalog (feature/data_gap), or when something worked surprisingly well (praise). ONLY for tools served by this Pipeworx connection — if the tool came from a different MCP server in your client (another vendor's Gmail, Splunk, Slack, etc. connector), we cannot fix it and reporting it here only delays you; file it with that server instead. Not sure? Pipeworx tool names are the ones this connection lists. Describe the issue in terms of Pipeworx tools/packs — don't paste the end-user's prompt. Filing without an account returns a `claim_token`; pass it back later as pipeworx_feedback({claim_token:"pwfb_…"}) to read whether it was fixed and what changed. The team reads digests daily and signal directly affects roadmap. Rate-limited to 5 per identifier per day. Free; doesn't count against your tool-call quota.

Full history: https://api.protogrid.dev/v1/servers/io.github.pipeworx-io%2Fcensus/changes

## Remotes

- https://gateway.pipeworx.io/census/mcp (streamable-http, auth none, reachable true, uptime30d 0.99159664)

## Packages

_none_

## Tools (0)

_none observed_