Code Index MCP — The AI Agent's Coding Knowledge Engine.

Install the Code Index MCP and give your agent real-time access to thousands of high-quality, AI-vetted resources, code snippets, and architecture patterns, powered by a blazing-fast full-text search engine.

With context-aware search, your agent becomes sharper, more efficient, and generates clean, working code in fewer attempts.

$▌cidx --mcp

Why we built this

Modern AI agents are powerful, but they often miss the context needed to produce reliable code. By giving them direct access to a specialized knowledge base of patterns and documentation, we close that gap—enabling faster, more accurate coding. No more guessing. No more hallucinations.

Learn more

Installation

Install the CIDX CLI globally:
```
npm install -g cidx
```
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Initialize and configure CIDX:
```
cidx init
```
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- This will open a browser window. Log in or register with GitHub (if you are already registered, just log in).
- Authorize CLI integration when prompted.
- Once complete, close the browser window and return to your terminal.
- The CLI will automatically set up your account keys.
Connect CIDX to the MCP installation window:
```
cidx --mcp
```
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Copy and paste the output into the MCP installation window to complete setup.

That's it! Your CIDX CLI is now configured and ready to use with MCP integrations.

Need help setting up the MCP with your IDE? Check out our Resources.

MCP function reference

searchDocumentation

Allows the agent to query across indexed documentation sources. Returns relevant sections with high-precision scoring.

searchCodeSnippets

Find implementation examples, patterns, and code solutions that match your search query across all libraries.

searchArchitecturePatterns

Search for recommended project structures, design patterns, and architecture recommendations for web and game development.

getArchitecturePatternById

Retrieve the complete details of a specific architecture pattern, including full markdown content and implementation guidance.

getSnippetByDocumentationId

Retrieve code snippets specifically associated with a documentation entry. This allows precise access to the implementation examples for a particular documentation resource.