Context7 MCP Server Setup Guide

Overview

Context7 is a powerful MCP server that provides up-to-date code documentation for LLMs and AI code editors. It's one of the most popular MCP servers with over 24k stars on GitHub.

What Context7 Does

Real-time Documentation: Provides current, up-to-date documentation for libraries and frameworks
Library Resolution: Automatically finds the right documentation for any library
Code Examples: Delivers working, current code examples
API Documentation: Access to the latest API documentation
Setup Guides: Step-by-step installation and configuration guides
Multi-workspace Support: Manage multiple projects with advanced indexing
Fuzzy Search: Intelligent search with context-aware results
Deep Code Search: Search across multiple workspaces with advanced filters
Semantic Understanding: Understands code structure and relationships
Context Awareness: Maintains project-wide context for better suggestions
Intelligent Navigation: Navigate codebases efficiently
Pattern Recognition: Identify code patterns and similar implementations
Multi-language Support: Works with most programming languages

Installation

Automatic Installation

Context7 is automatically installed when you run:

./install-ai-tools.sh --non-interactive

Manual Installation

For comprehensive setup with advanced features:

./setup/setup-context7.sh

Configuration

Main Configuration

The comprehensive setup creates a configuration at ~/.context7/config.json:

{
  "workspaces": [
    {
      "name": "default",
      "path": "~/workspace",
      "description": "Default workspace for projects"
    }
  ],
  "settings": {
    "indexing": {
      "enabled": true,
      "excludePatterns": [
        "**/node_modules/**",
        "**/.git/**",
        "**/dist/**",
        "**/build/**",
        "**/*.log",
        "**/.DS_Store",
        "**/.venv/**",
        "**/venv/**",
        "**/__pycache__/**",
        "**/.mypy_cache/**",
        "**/.ruff_cache/**",
        "**/target/**",
        "**/vendor/**",
        "**/.gradle/**",
        "**/cmake-build-*/**"
      ],
      "includePatterns": [
        "**/*.js", "**/*.ts", "**/*.jsx", "**/*.tsx",
        "**/*.py", "**/*.go", "**/*.rs", "**/*.java",
        "**/*.cpp", "**/*.c", "**/*.h", "**/*.md",
        "**/*.json", "**/*.yaml", "**/*.yml", "**/*.toml"
      ]
    },
    "search": {
      "maxResults": 100,
      "contextLines": 3,
      "fuzzyMatch": true,
      "caseSensitive": false
    },
    "performance": {
      "maxFileSize": 10485760,
      "maxFiles": 10000,
      "cacheTimeout": 3600,
      "parallelIndexing": true
    },
    "security": {
      "allowedPaths": [
        "~/workspace",
        "~/projects",
        "~/Code"
      ],
      "restrictToWorkspace": true
    }
  }
}

Project-Specific Configuration

Initialize a project with Context7:

# Initialize current directory
context7-init

# Initialize specific project
context7-init my-project ~/projects/my-project

Advanced Features

🎯 Intelligent Dependency Detection

The comprehensive setup automatically analyzes your project files to detect dependencies:

Supported Package Managers

Language	Package Manager	Files Detected
Node.js	npm/yarn/pnpm	`package.json`
Python	pip/poetry/uv	`pyproject.toml`, `requirements.txt`, `setup.py`
Go	go modules	`go.mod`
Rust	cargo	`Cargo.toml`
Java	maven/gradle	`pom.xml`, `build.gradle`
C++	cmake/make	`CMakeLists.txt`, `Makefile`

Framework Detection

Automatically detects popular frameworks:

Node.js: Next.js, Nuxt, Vue, Angular, Svelte, Express
Python: FastAPI, Django, Flask, Streamlit, Jupyter
Go: Gin, Echo, Fiber, Chi
Rust: Tokio, Actix, Rocket, Axum
Java: Spring Boot, Quarkus, Micronaut

🏗️ uv Workspace Support

For complex Python projects using uv workspaces:

# Root workspace pyproject.toml
[project]
dependencies = [
  "accent-core",
  "accent-gateway",
  "accent-engine",
]

[tool.uv.workspace]
members = [
    "service/accent-core",
    "service/accent-gateway",
    "service/accent-engine",
]

[dependency-groups]
dev = ["bandit", "celery", "mypy", "pytest"]
test = ["pytest", "coverage", "httpx"]
docs = ["mkdocs", "mkdocs-material"]

📦 Monorepo Intelligence

Handles complex project structures:

Multi-package Analysis: Analyzes each package in the monorepo
Shared Dependencies: Identifies dependencies shared across packages
Package-specific Configurations: Creates optimized settings per package
Dependency Resolution: Handles complex dependency relationships

🐳 Devcontainer Optimization

Local Execution: Context7 runs locally in your devcontainer
Project-specific Configuration: Each project gets optimized settings
Dependency-aware Indexing: Focuses on relevant file types and patterns
Performance Tuning: Optimized for containerized environments

Library Mapping

Converts detected dependencies to Context7 library IDs:

Detected Dependency	Context7 Library ID
`npm:react`	`/react/react`
`npm:next`	`/vercel/next.js`
`python:fastapi`	`/fastapi/fastapi`
`python:django`	`/django/django`
`go:gin`	`/gin-gonic/gin`
`rust:tokio`	`/tokio/tokio`
`python:pandas`	`/pandas/pandas`
`python:numpy`	`/numpy/numpy`
`python:sqlalchemy`	`/sqlalchemy/sqlalchemy`
`python:pydantic`	`/pydantic/pydantic`

Usage Examples

Basic Project Initialization

# Initialize current directory
context7-init

# Initialize specific project
context7-init my-project ~/projects/my-project

Advanced Project Analysis

# Example: Node.js project with Next.js
# Detects: nodejs, framework:nextjs, npm:react, npm:next, npm:typescript
context7-init my-nextjs-app

# Example: Python project with FastAPI
# Detects: python, python:fastapi, python:pydantic, python:uvicorn
context7-init my-fastapi-app

# Example: uv workspace with multiple services
# Detects: uv-workspace, workspace-member:service/accent-core, workspace-member:service/accent-gateway
context7-init accent-ai-monorepo

Project Configuration

Creates optimized .context7/project.json:

{
  "name": "my-nextjs-app",
  "description": "Enhanced Context7 configuration for my-nextjs-app",
  "path": "/workspace/my-nextjs-app",
  "language": "javascript",
  "frameworks": ["nextjs"],
  "dependencies": ["nodejs", "npm:react", "npm:next", "npm:typescript"],
  "context7_libraries": ["/react/react", "/vercel/next.js"],
  "settings": {
    "devcontainer": {
      "enabled": true,
      "autoDetectDependencies": true,
      "libraryMappings": ["/react/react", "/vercel/next.js"]
    },
    "indexing": {
      "excludePatterns": [
        "**/node_modules/**",
        "**/.next/**",
        "**/dist/**",
        "**/build/**"
      ],
      "includePatterns": [
        "**/*.js", "**/*.ts", "**/*.jsx", "**/*.tsx"
      ]
    }
  }
}

Convenience Scripts

`context7`

Quick launcher for Context7:

# Launch Context7 for current directory
context7

# Launch for specific project
context7 ~/projects/my-project

`context7-init`

Project initialization script:

# Initialize current directory
context7-init

# Initialize with custom name
context7-init my-project

# Initialize specific path
context7-init my-project ~/projects/my-project

`context7-add`

Add libraries to project:

# Add specific library
context7-add /react/react

# Add multiple libraries
context7-add /react/react /vercel/next.js /typescript/typescript

Troubleshooting

Common Issues

Context7 not found

# Check if Context7 is installed
claude mcp list | grep context7

# Reinstall if needed
./setup/setup-context7.sh

Project not detected

# Check project structure
ls -la

# Ensure you have package files (package.json, pyproject.toml, etc.)
# Reinitialize project
context7-init

Dependencies not mapped

# Check detected dependencies
cat .context7/project.json

# Manually add libraries
context7-add /library/name

Debug Mode

Enable debug logging:

# Set debug environment variable
export CONTEXT7_DEBUG=true

# Run Context7 with debug output
context7

Integration with Claude

MCP Server Status

Check if Context7 is properly installed:

claude mcp list

Expected output:

context7: npx @upstash/context7-mcp ✓ Connected

Using Context7 with Claude

Once installed, you can ask Claude to:

Search code: "Find all React components in my project"
Get documentation: "Show me FastAPI documentation for routing"
Analyze patterns: "Find similar authentication implementations"
Navigate code: "Show me the main entry point of this application"

Performance Optimization

Indexing Settings

Optimize for your project size:

{
  "settings": {
    "indexing": {
      "maxFiles": 50000,        // Large projects
      "maxFileSize": 20971520,  // 20MB files
      "parallelIndexing": true  // Faster indexing
    }
  }
}

Caching

Enable caching for better performance:

{
  "settings": {
    "performance": {
      "enableCaching": true,
      "cacheTimeout": 7200,     // 2 hours
      "cacheSize": 1000         // Cache size in MB
    }
  }
}

Security Considerations

File Access Restrictions

{
  "settings": {
    "security": {
      "allowedPaths": [
        "~/workspace",
        "~/projects"
      ],
      "restrictToWorkspace": true,
      "maxFileSize": 10485760   // 10MB limit
    }
  }
}

Environment Variables

Context7 respects environment variables:

# Set custom workspace
export CONTEXT7_WORKSPACE=~/my-projects

# Set debug mode
export CONTEXT7_DEBUG=true

# Set custom config path
export CONTEXT7_CONFIG=~/.context7/custom-config.json

Documentation

Official Documentation: https://github.com/upstash/context7
MCP Protocol: https://modelcontextprotocol.io/
Claude Integration: https://docs.anthropic.com/claude/docs

Support

For issues and questions:

Check the troubleshooting section above
Review the project configuration at ~/.context7/config.json
Check the Context7 logs at ~/.context7/logs/
Visit the Context7 GitHub repository

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