# Nursing Home Database

> MCP server for US nursing facility search and ownership lookup (NursingHomeDatabase).

- name: com.nursinghomedatabase/mcp
- version: 1.0.1
- connection class: R0 (autonomous)
- trust: 81/100
- quality: 79/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.nursinghomedatabase%2Fmcp
- tools: https://api.protogrid.dev/v1/servers/com.nursinghomedatabase%2Fmcp/tools

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

## Connection (mcpServers)

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


## Trust

- hygiene: 100
- liveness: 99
- freshness: 45
- provenance: 75
- drivers: +repository +dns-namespace +reachable +uptime-97% -stale-210d
- 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 2025-03-26; 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: 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: search_facilities_by_ownership (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); compare_facilities (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_facility (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
- pass `tools.token_cost`: about 2,720 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`: 4 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: 12, about 2,720 tokens to load them all
- tool set hash: cbd12a4bcc59fcfc31122f73de4fdf54
- tools last changed: 2026-10-09T02:36:23.591Z
- badge: [![protogrid quality](https://protogrid.dev/badge/com.nursinghomedatabase/mcp.svg)](https://protogrid.dev/servers/com.nursinghomedatabase/mcp)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-09 `list_distinct_values` changed (inputSchema)
- 2026-10-09 `get_facility_changes` changed (description)
  - before: Monitor one skilled nursing facility across two CMS monthly files. Defaults to latest vs the prior snapshot. Returns field-level diffs for stars, nurse hours, turnover, inspection score, abuse icon, fines, and occupancy. Care Compare shows this month only — rerun after the next file.
  - after: Monitor one skilled nursing facility across two CMS monthly files. Defaults to latest vs the prior snapshot. Returns field-level diffs for stars, nurse hours, turnover, inspection score, abuse icon, high-performing icon, fines, and occupancy. Care Compare shows this month only — rerun after the next file.
- 2026-10-09 `summarize_facilities` changed (inputSchema)
- 2026-10-09 `search_facilities` changed (description, inputSchema)
  - before: Find certified US skilled nursing facilities near an address or in a city. Filter by CMS ownership type (call list_distinct_values field=ownership first), star rating, abuse flag, or Special Focus status. Returns ownership, ratings, nurse hours (HPRD), nurse/RN turnover, weighted inspection score, beds, fines, straight-line distance_miles, and maps deep-links. distance_miles is crow-flies, not drive time — use maps.google_dir / a mapping service for minutes.
  - after: Find certified US skilled nursing facilities near an address or in a city. Filter by CMS ownership type (call list_distinct_values field=ownership first), star rating, abuse flag, high-performing icon, or Special Focus status. Returns ownership, ratings, nurse hours (HPRD), nurse/RN turnover, weighted inspection score, beds, fines, straight-line distance_miles, and maps deep-links. distance_miles is crow-flies, not drive time — use maps.google_dir / a mapping service for minutes.

Full history: https://api.protogrid.dev/v1/servers/com.nursinghomedatabase%2Fmcp/changes

## Remotes

- https://mcp.nursinghomedatabase.com/mcp (streamable-http, auth none, reachable true, uptime30d 0.9652174)

## Packages

_none_

## Tools (12)

- `compare_facilities`: Compare up to 25 certified skilled nursing facilities by CMS CCN or web slug. Returns the same decision fields as search_facilities (ratings, nurse hours, turnover, inspection score, beds, fines, maps) as a table. Prefer this over looping get_facility against the 60 requests/minute limit.
- `get_data_freshness`: Get latest source dataset dates and row counts. For prior months, call list_file_dates and pass filedate to other tools.
- `get_facility`: Get one certified skilled nursing facility by CMS CCN (provnum) or web slug. Returns the same decision fields as search_facilities: ratings, nurse hours (HPRD), nurse/RN turnover, weighted inspection score, beds, fines, abuse/SFF flags, and maps deep-links. Use data_as_of as the CMS vintage; do not invent ratings or hours that are missing. Defaults to the latest monthly snapshot; pass filedate from list_file_dates for a prior month.
- `get_facility_changes`: Monitor one skilled nursing facility across two CMS monthly files. Defaults to latest vs the prior snapshot. Returns field-level diffs for stars, nurse hours, turnover, inspection score, abuse icon, high-performing icon, fines, and occupancy. Care Compare shows this month only — rerun after the next file.
- `get_facility_ownership`: Get CMS ownership records for one facility — who owns or manages the building. Defaults to the latest CMS monthly snapshot; pass filedate from list_file_dates to query a prior month.
- `get_owner`: Get an owner portfolio by web_owner slug, including facility names, locations, and overall stars. Defaults to the latest CMS monthly snapshot; pass filedate from list_file_dates to query a prior month.
- `list_distinct_values`: List distinct CMS ProviderInfo values and counts for a field. Omit field to see the catalog. Use field=ownership before search_facilities to get the 13 ownership types. city requires state.
- `list_file_dates`: List CMS monthly snapshot dates available in the database (newest first), plus the current filedate and known unpublished months. Use a returned date as filedate on other tools to retrieve a prior month instead of the latest data.
- `search_facilities`: Find certified US skilled nursing facilities near an address or in a city. Filter by CMS ownership type (call list_distinct_values field=ownership first), star rating, abuse flag, high-performing icon, or Special Focus status. Returns ownership, ratings, nurse hours (HPRD), nurse/RN turnover, weighted inspection score, beds, fines, straight-line distance_miles, and maps deep-links. distance_miles is crow-flies, not drive time — use maps.google_dir / a mapping service for minutes.
- `search_facilities_by_ownership`: Find certified US SNFs by CMS ownership type (ProviderInfo.ownership). Call list_distinct_values with field=ownership first. Same result schema as search_facilities; combine with state, city, ZIP, or address.
- `search_owners`: Search nursing-home owners by name. Defaults to the latest CMS monthly snapshot; pass filedate from list_file_dates to query a prior month.
- `summarize_facilities`: Aggregate numeric CMS ProviderInfo fields (n, mean, min, max; optional median) across certified SNFs. Prefer this over paging search_facilities for national or grouped stats. Call list_distinct_values for ownership catalogs; call list_file_dates for filedate. Facility-equal means — not bed-weighted. Missing values excluded per metric. Not causal. Not a substitute for get_facility on a named home. Rate limit 60 requests/minute.