Bridge between Claude and OpenAI's Codex CLI — get AI-powered code analysis, generation, and review right in your editor.
graph LR
A[Claude Code] --> B[Codex MCP Server]
B --> C[Codex CLI]
C --> D[OpenAI API]
style A fill:#FF6B35
style B fill:#4A90E2
style C fill:#00D4AA
style D fill:#FFA500
npm i -g @openai/codex
codex login --api-key "your-openai-api-key"claude mcp add codex-cli -- npx -y codex-mcp-serverAsk codex to explain this function
Use codex to refactor this code for better performance
Use review to check my uncommitted changes
| Tool | Description |
|---|---|
codex |
AI coding assistant with session support and model selection |
review |
AI-powered code review for uncommitted changes, branches, or commits |
listSessions |
View active conversation sessions |
ping |
Test server connection |
help |
Get Codex CLI help |
Code analysis:
Use codex to analyze this authentication logic for security issues
Multi-turn conversations:
Use codex with sessionId "refactor" to analyze this module
Use codex with sessionId "refactor" to implement your suggestions
Code review:
Use review with base "main" to check my PR changes
Use review with uncommitted true to review my local changes
Advanced options:
Use codex with model "o3" and reasoningEffort "high" for complex analysis
Use codex with fullAuto true and sandbox "workspace-write" for automated tasks
- Codex CLI v0.75.0+ — Install with
npm i -g @openai/codexorbrew install codex - OpenAI API key — Run
codex login --api-key "your-key"to authenticate
- API Reference — Full tool parameters and response formats
- Session Management — How conversations work
- Codex CLI Integration — Version compatibility and CLI details
npm install # Install dependencies
npm run dev # Development mode
npm run build # Build for production
npm test # Run tests- gemini-mcp-server — MCP server for Gemini CLI with 1M+ token context, web search, and media analysis
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