react-native-docs-mcp

Local semantic search over React Native docs for AI agents — no API key

AI-powered semantic search over React Native documentation for Claude, Cursor, and other MCP clients.

Looking for React docs instead? Seereact-docs-mcp.

claude mcp add --transport stdio react-native-docs -- npx react-native-docs-mcp

{ "mcpServers": { "react-native-docs": { "command": "npx", "args": ["-y", "react-native-docs-mcp"] } } }

Settings→Cursor settings→Tools and MCP→ Add server:

{ "mcpServers": { "react-native-docs": { "command": "npx", "args": ["-y", "react-native-docs-mcp"] } } }

That's it!Restart your editor and ask about React Native.

- 🔑 No API Key: Unlike hosted docs services (Context7, GitMCP), everything runs on your machine — no account, no key, no rate limits
- 🔌 Works Offline: Clones the official react-native-website docs repo once, then searches locally — no network calls at query time
- 🔍 Semantic Search: AI-powered search using embeddings for conceptual matches
- ⚡ Fast Results: In-memory vector search with hybrid keyword+semantic ranking
- 📦 Zero Config: Works withnpx- no installation needed
- 🤖 Local AI: Runs embeddings locally (no API costs)
- 📝 Concise Responses: Returns summaries instead of full documentation
- 🔄 Auto-sync: Pulls latest docs from the react-native-website repo automatically
- 📌 Version Pinning:--docs-version=0.77scopes docs to the React Native release your app actually uses

Once configured, the server provides the following capabilities to AI agents:

Search across React Native documentation.

- query(required): Search query string
- section(optional): Filter by section (the-new-architecture, legacy, releases)
- limit(optional): Maximum number of results (default: 10, max: 50)

Search for "flexbox layout" in React Native docs

- path(required): Document path (e.g., "getting-started", "the-new-architecture/using-codegen")
- full(optional): Return the full raw page instead of the ~1500 char summary (default: false)

Get the React Native flexbox documentation

Whyfull?The default summary is enough for most reference pages, but long guides — like "The New Architecture" migration docs, or a full native-modules walkthrough — can run well past 1500 chars, and the summary may stop before the part you actually need. Ask for the complete page when that happens:

Get the full page for the-new-architecture/using-codegen, I need every step

which callsget_docwith{ "path": "the-new-architecture/using-codegen", "full": true }.

List all available documentation sections.

Pull latest documentation from the Git repository.

By default this server indexes the always-currentdocs/folder from the react-native-website repo — the same docs shown on reactnative.dev today. To pin it to a specific past release's frozen docs snapshot instead, pass--docs-version:

npx react-native-docs-mcp --docs-version=0.77

or set theREACT_NATIVE_DOCS_VERSIONenv var (the CLI flag wins if both are set). With Claude Code:

claude mcp add --transport stdio react-native-docs -- npx react-native-docs-mcp --docs-version=0.77

(Bare--versionprints the package version, as you'd expect from any CLI.)

Why pin a version?If your app is running React Native 0.77 but the agent searches always-current docs, it can suggest an API that only exists in 0.86, or miss that something was renamed/removed since your version. Pinning--docs-versionto match yourreact-nativedependency's version keeps suggestions consistent with the APIs actually available in your app — useful when working on an app that's a few releases behind latest, or when debugging something version-specific (e.g. "did this New Architecture behavior change between 0.78 and 0.82?" — run two instances, one per version, and compare).

Onlylatest(the default) is fully verified against the current docs structure; older version snapshots are indexed best-effort with the same settings.

The server exposes documentation as resources with the URI pattern:

- Docs source: content is cloned from the unversioneddocs/folder infacebook/react-native-website, which is upstream's live editing source. It may occasionally be a few days ahead of the latest published release rather than pinned to a specific React Native version.
- Sections: most React Native docs pages live flat at the root ofdocs/with no meaningful section — onlythe-new-architecture,legacy, andreleasesare real subfolders. Thesectionfilter reliably narrows results only for those three; for everything else, search unfiltered.
- Blog posts:website/blog/is not indexed yet.
- MDX rendering:.mdx-only syntax (JSX component imports, admonitions) is stripped as best-effort plain text for search indexing, so snippets/summaries for some pages may include stray import lines.

This package shares its engine withreact-docs-mcp— development happens in that monorepo (this standalone repo is a read-only mirror ofpackages/react-native-docs-mcp/; please file issues there). This package's own source only configures the shared engine with React Native-specific defaults (src/index.ts) and is bundled standalone withtsup.

npm install npm run build npm run dev # run directly with tsx, no build step

MIT. React Native documentation content is © Meta Platforms, Inc. and licensed separately by thereact-native-websiteproject.

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