# com.googleapis.developerknowledge/mcp

> Provides access to Google's public developer documentation.

- name: com.googleapis.developerknowledge/mcp
- version: 1.0.0
- connection class: R0 (autonomous)
- trust: 69/100 flags: no-repository
- quality: 88/100 (good)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/com.googleapis.developerknowledge%2Fmcp
- tools: https://api.protogrid.dev/v1/servers/com.googleapis.developerknowledge%2Fmcp/tools

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

## Connection (mcpServers)

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


## Trust

- hygiene: 80
- liveness: 100
- freshness: 45
- provenance: 45
- drivers: +dns-namespace +reachable +uptime-100% -stale-184d -no-repository
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 88/100 (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: 93 (weight 30)

- pass `tools.descriptions`: every tool has a description
- warn `tools.description_length`: 1 tools have descriptions over 1,024 characters, which crowds the context
- 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 1,045 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: 3, about 1,045 tokens to load them all
- tool set hash: 5d8d3e40657eb234e696497562af9703
- tools last changed: 2026-10-14T11:17:10.171Z
- badge: [![protogrid quality](https://protogrid.dev/badge/com.googleapis.developerknowledge/mcp.svg)](https://protogrid.dev/servers/com.googleapis.developerknowledge/mcp)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-10-14 `get_documents` changed (description, inputSchema)
  - before: Use this tool to retrieve the full content of a single document or up to 20 documents in a single call. The document names should be obtained from the `parent` field of results from a call to the `search_documents` tool. Set the `names` parameter to a list of document names.
  - after: Use this tool to retrieve the full content of a single document or up to 20 documents in a single call. The document names should be obtained from either the `parent` field of results from a call to the `search_documents` tool or the `references` field returned by the `answer_query` tool. Set the `names` parameter to a list of document names (`documents/...`), and cite the authoritative source documents used in your final response.
- 2026-10-14 `answer_query` changed (description, outputSchema)
  - before: Use answer_query to get a grounded answer to a query about Google developer products. This tool has limited quota. This tool will synthesize information from the corpus to generate an answer to the query. answer_query grounds answers using the same corpus as search_documents. This tool returns the generated answer_text and a list of document names (references) used to generate the answer. Use get_documents with the document names to fetch the entire document content if needed. If you get a 429 out of quota error, use search_documents instead.
  - after: Use answer_query to get a grounded, synthesized conceptual answer to a high-level question about Google developer products. For exact code samples, CLI flags, specific error messages, or full document walkthroughs, prefer `search_documents` followed by `get_documents` instead. This tool has limited quota. This tool will synthesize information from the corpus to generate an answer to the query. answer_query grounds answers using the same corpus as search_documents. This tool returns the generated answer_text and a list of document names (references) used to generate the answer. Always cite the authoritative source document names from `references` (`documents/...`) in your final response to the user. Use `get_documents` with the document names from `references` to fetch the entire document content if needed. If you get a 429 out of quota error, use search_documents instead.
- 2026-10-14 `search_documents` changed (description)
  - before: Use this tool to find documentation about Google developer products. The documents contain official APIs, code snippets, release notes, best practices, guides, debugging info, and more. It covers the following products and domains: * ADK: adk.dev * Android: developer.android.com * Apigee: docs.apigee.com * Chrome: developer.chrome.com * Dart: dart.dev * Firebase: firebase.google.com * Flutter: docs.flutter.dev * Fuchsia: fuchsia.dev * Gemini CLI: geminicli.com * Genkit: genkit.dev * Go: go.dev * Google AI: ai.google.dev * Google Antigravity: antigravity.google * Google Cloud: cloud.google.com & docs.cloud.google.com * Google Developers, Ads, Search, Google Maps, Youtube: developers.google.com * Google Home: developers.home.google.com * Google Maps Platform: mapsplatform.google.com * Google Workspace: knowledge.workspace.google.com * TensorFlow: www.tensorflow.org * Web: web.dev This tool returns chunks of text, names, and URLs for matching documents. If the returned chunks are not detailed enough to answer the user's question, use `get_documents` with the `parent` from this tool's output to retrieve the full document content.
  - after: Use this tool to find documentation about Google developer products. The documents contain official APIs, code snippets, release notes, best practices, guides, debugging info, and more. It covers the following products and domains: * ADK: adk.dev * Android: developer.android.com * Apigee: docs.apigee.com * Chrome: developer.chrome.com * Dart: dart.dev * Firebase: firebase.google.com * Flutter: docs.flutter.dev * Fuchsia: fuchsia.dev * Gemini CLI: geminicli.com * Genkit: genkit.dev * Go: go.dev * Google AI: ai.google.dev * Google Antigravity: antigravity.google * Google Cloud: cloud.google.com & docs.cloud.google.com * Google Developers, Ads, Search, Google Maps, Youtube: developers.google.com * Google Home: developers.home.google.com * Google Maps Platform: mapsplatform.google.com * Google Workspace: knowledge.workspace.google.com * TensorFlow: www.tensorflow.org * Web: web.dev This tool returns chunks of text, names, and URIs for matching documents. Prefer `search_documents` followed by `get_documents` when you need exact code samples, CLI flags, specific error messages, full tutorial walkthroughs, or deterministic keyword lookup. If the returned chunks are not detailed enough to answer the user's question, use `get_documents` with the `parent` from this tool's output to retrieve the full document content. When answering the user, always cite the authoritative source document resource names (`documents/...`) or URIs.
- 2026-10-05 `search_documents` changed (description)
  - before: Use this tool to find documentation about Google developer products. The documents contain official APIs, code snippets, release notes, best practices, guides, debugging info, and more. It covers the following products and domains: * ADK: adk.dev * Android: developer.android.com * Apigee: docs.apigee.com * Chrome: developer.chrome.com * Dart: dart.dev * Firebase: firebase.google.com * Flutter: docs.flutter.dev * Fuchsia: fuchsia.dev * Gemini CLI: geminicli.com * Genkit: genkit.dev * Go: go.dev * Google AI: ai.google.dev * Google Antigravity: antigravity.google * Google Cloud: cloud.google.com & docs.cloud.google.com * Google Developers, Ads, Search, Google Maps, Youtube: developers.google.com * Google Home: developers.home.google.com * Google Maps Platform: mapsplatform.google.com * TensorFlow: www.tensorflow.org * Web: web.dev This tool returns chunks of text, names, and URLs for matching documents. If the returned chunks are not detailed enough to answer the user's question, use `get_documents` with the `parent` from this tool's output to retrieve the full document content.
  - after: Use this tool to find documentation about Google developer products. The documents contain official APIs, code snippets, release notes, best practices, guides, debugging info, and more. It covers the following products and domains: * ADK: adk.dev * Android: developer.android.com * Apigee: docs.apigee.com * Chrome: developer.chrome.com * Dart: dart.dev * Firebase: firebase.google.com * Flutter: docs.flutter.dev * Fuchsia: fuchsia.dev * Gemini CLI: geminicli.com * Genkit: genkit.dev * Go: go.dev * Google AI: ai.google.dev * Google Antigravity: antigravity.google * Google Cloud: cloud.google.com & docs.cloud.google.com * Google Developers, Ads, Search, Google Maps, Youtube: developers.google.com * Google Home: developers.home.google.com * Google Maps Platform: mapsplatform.google.com * Google Workspace: knowledge.workspace.google.com * TensorFlow: www.tensorflow.org * Web: web.dev This tool returns chunks of text, names, and URLs for matching documents. If the returned chunks are not detailed enough to answer the user's question, use `get_documents` with the `parent` from this tool's output to retrieve the full document content.

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

## Remotes

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

## Packages

_none_

## Tools (3)

- `answer_query`: Use answer_query to get a grounded, synthesized conceptual answer to a high-level question about Google developer products. For exact code samples, CLI flags, specific error messages, or full document walkthroughs, prefer `search_documents` followed by `get_documents` instead. This tool has limited quota. This tool will synthesize information from the corpus to generate an answer to the query. answer_query grounds answers using the same corpus as search_documents. 
This tool returns the generated answer_text and a list of document names (references) used to generate the answer. Always cite the authoritative source document names from `references` (`documents/...`) in your final response to the user. Use `get_documents` with the document names from `references` to fetch the entire document content if needed.

If you get a 429 out of quota error, use search_documents instead.

- `get_documents`: Use this tool to retrieve the full content of a single document or up to 20 documents in a single call. The document names should be obtained from either the `parent` field of results from a call to the `search_documents` tool or the `references` field returned by the `answer_query` tool. Set the `names` parameter to a list of document names (`documents/...`), and cite the authoritative source documents used in your final response.
- `search_documents`: Use this tool to find documentation about Google developer products. The documents contain official APIs, code snippets, release notes, best practices, guides, debugging info, and more. It covers the following products and domains:


* ADK: adk.dev

* Android: developer.android.com

* Apigee: docs.apigee.com

* Chrome: developer.chrome.com

* Dart: dart.dev

* Firebase: firebase.google.com

* Flutter: docs.flutter.dev

* Fuchsia: fuchsia.dev

* Gemini CLI: geminicli.com

* Genkit: genkit.dev

* Go: go.dev

* Google AI: ai.google.dev

* Google Antigravity: antigravity.google

* Google Cloud: cloud.google.com & docs.cloud.google.com

* Google Developers, Ads, Search, Google Maps, Youtube: developers.google.com

* Google Home: developers.home.google.com

* Google Maps Platform: mapsplatform.google.com

* Google Workspace: knowledge.workspace.google.com

* TensorFlow: www.tensorflow.org

* Web: web.dev


This tool returns chunks of text, names, and URIs for matching documents. Prefer `search_documents` followed by `get_documents` when you need exact code samples, CLI flags, specific error messages, full tutorial walkthroughs, or deterministic keyword lookup. If the returned chunks are not detailed enough to answer the user's question, use `get_documents` with the `parent` from this tool's output to retrieve the full document content. When answering the user, always cite the authoritative source document resource names (`documents/...`) or URIs.