Codexini Install Jun 2026

What is your primary or development stack?

brew install codex

source codex_env/bin/activate

export OPENAI_API_KEY="your-api-key-here" codexini install

Note for macOS/Linux users: If you encounter permission errors, append sudo to the command: sudo npm install -g codexini Use code with caution. 2. Manual Installation via macOS Homebrew

# ~/.codex/config.toml user_instructions = """ You are an expert Python developer who prioritizes code readability and thorough commenting. Always include type hints and write comprehensive docstrings for functions. """

If your terminal does not recognize the codexini command after a successful installation, the binary path is likely missing from your environment variables. What is your primary or development stack

Upgrade your package installer and force a clean installation:

After installation, you can launch it by simply running codex in your terminal.

codexini --help

The CLI is the most powerful way to interact with the engine for repository-wide edits and automated file patching. OpenAI Developers Prerequisites : You must have installed on your system. Install Command : Open your terminal and run: npm install -g @openai/codex Configuration : After installation, run the command. You will be prompted to sign in via your ChatGPT account or provide an OpenAI API key

You can also run Codex non-interactively for scripting: