Context7 MCP Server for Zed

# Context7 MCP Server for Zed This extension integrates [Context7](https://context7.com/) as a Model Context Protocol (MCP) server for Zed's Assistant, providing up-to-date documentation for any prompt. ## What is Context7? Context7 pulls up-to-date, version-specific documentation and code examples straight from the source and places them directly into your prompt context. ### ❌ Without Context7 LLMs rely on outdated or generic information about the libraries you use. You get: - ❌ Code examples are outdated and based on year-old training data - ❌ Hallucinated APIs that don't even exist - ❌ Generic answers for old package versions ### ✅ With Context7 Context7 fetches up-to-date, version-specific documentation and code examples straight from the source — and places them directly into your prompt. Add `use context7` to your question in Zed Assistant: ``` How do I use the new Next.js `after` function? use context7 ``` ``` How do I invalidate a query in React Query? use context7 ``` ``` How do I protect a route with NextAuth? use context7 ``` ## How It Works - 1️⃣ Ask your question naturally - 2️⃣ Tell the LLM to `use context7` - 3️⃣ Get working code answers No tab-switching, no hallucinated APIs that don't exist, no outdated code generations. ## Installation This extension can be installed from the Zed extension. ## Agent Mode Configuration If you're using Zed's agent mode, you need to enable this context server for your assistant: 1. Open Zed's assistant settings 2. Enable the Context7 MCP server. If you see that the status of the tool is a red dot, make sure you toggle it so that becomes green. 3. Enable the Context7 MCP Server in the active assistant profile. In the chat section, click on the `Write | Ask` button, then click on `tools`, then enable the Context7 MCP Server. ## Environment Variables (Optional) - `context7_api_key`: Set the Context7 API key. Examples: ```json { "context_server": { "mcp-server-context7": { "source": "extension", "enabled": true, "settings": { "context7_api_key": "YOUR_CONTEXT7_API_KEY", } } } } ``` ## Available Tools The Context7 MCP Server provides these tools to the LLM: - `resolve-library-id`: Resolves a general library name into a Context7-compatible library ID. - `libraryName` (optional): Search and rerank results - `get-library-docs`: Fetches documentation for a library using a Context7-compatible library ID. - `context7CompatibleLibraryID` (required) - `topic` (optional): Focus the docs on a specific topic (e.g., "routing", "hooks") - `tokens` (optional, default 5000): Max number of tokens to return ## Development Clone the project and install dependencies: ``` cargo build ``` ## License MIT