# NPILayer

> Look up U.S. healthcare providers by NPI, name, specialty and ZIP radius from CMS NPPES data.

- name: com.npilayer/npilayer
- version: 1.0.1
- connection class: R0 (autonomous)
- trust: 82/100 flags: no-repository
- quality: 89/100 (new)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.npilayer%2Fnpilayer
- tools: https://api.protogrid.dev/v1/servers/com.npilayer%2Fnpilayer/tools

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

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "npilayer": {
      "type": "http",
      "url": "https://npilayer.com/mcp",
      "headers": {
        "Authorization": "Bearer ${NPILAYER_TOKEN}"
      }
    }
  }
}
```

Placeholders to fill: `${NPILAYER_TOKEN}`.

## Trust

- hygiene: 80
- liveness: 97
- freshness: 100
- provenance: 55
- drivers: +dns-namespace +website +reachable +uptime-93% +updated-4d-ago -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 89/100 (new)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-06-18; 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: 100 (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
- pass `tools.annotations`: 3 of 3 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 746 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

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

- n/a `stability.changes`, `stability.rug_pull`: tool history recorded for 3 of the 7 days needed

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

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

- tools: 3, about 746 tokens to load them all
- tool set hash: e5de46974c6e92b5bc2212ee2222e454
- badge: [![protogrid quality](https://protogrid.dev/badge/com.npilayer/npilayer.svg)](https://protogrid.dev/servers/com.npilayer/npilayer)
- 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://npilayer.com/mcp (streamable-http, auth none, reachable true, uptime30d 0.9285714)

## Packages

_none_

## Tools (3)

- `lookup_npi`: Look up a single U.S. healthcare provider or organization by its 10-digit National Provider Identifier (NPI), from CMS NPPES data. An NPI record identifies a provider; it does not indicate licensure, credentialing, network participation, or current practice status.
- `providers_near`: Find U.S. healthcare providers within a radius of a ZIP code or coordinate, from CMS NPPES data. Provide either "zip", or both "lat" and "lng". Distance is measured from each provider's primary practice location to the ZIP centroid (not an exact street address), since NPILayer's geography is ZIP-based.
- `search_providers`: Search U.S. healthcare providers and organizations by name, location, or specialty, from CMS NPPES data. Provide at least one filter; an empty search returns an arbitrary page of providers rather than a meaningful result.