codex-as-mcp
Codexは、Pythonコードの生成や翻訳を行うAIツールであり、開発者が効率的にプログラムを書く手助けをします。自然言語からコードを生成する能力により、初心者から上級者まで幅広いユーザーに対応可能です。
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codex-as-mcp
Enable Claude Code, Cursor and other AI tools to call Codex for task execution. Plus/Pro/Team subscribers can maximize GPT-5 usage without additional costs.
Setup
1. Install Codex CLI
⚠️ Requires Codex CLI version >= 0.25.0
npm install -g @openai/codex@latest
codex login
# Verify version
codex --version
Important: This MCP server uses
--sandbox
flag that requires Codex CLI v0.25.0 or later. Earlier versions are not supported.
2. Configure MCP
Add to your .mcp.json
:
Safe Mode (Default):
{
"mcpServers": {
"codex": {
"type": "stdio",
"command": "uvx",
"args": ["codex-as-mcp@latest"]
}
}
}
Writable Mode:
{
"mcpServers": {
"codex": {
"type": "stdio",
"command": "uvx",
"args": ["codex-as-mcp@latest", "--yolo"]
}
}
}
Or use Claude Code commands:
# Safe mode (default)
claude mcp add codex-as-mcp -- uvx codex-as-mcp@latest
# Writable mode
claude mcp add codex-as-mcp -- uvx codex-as-mcp@latest --yolo
Tools
The MCP server exposes two tools:
codex_execute(prompt, work_dir)
- General purpose codex executioncodex_review(review_type, work_dir, target?, prompt?)
- Specialized code review
If you have any other use case requirements, feel free to open issue.
Safety
- Safe Mode: Default read-only operations protect your environment
- Writable Mode: Use
--yolo
flag when you need full codex capabilities - Sequential Execution: Prevents conflicts from parallel agent operations
Local test
uv run mcp dev src/codex_as_mcp/server.py