Codex CLI guides
Learn Codex CLI step by step: install it, sign in, and run your first task. Plain words, copyable commands, checked against the official docs.
- Install Codex CLI on a Mac or on WindowsInstall OpenAI's Codex CLI with one copied command, check that it works, and sign in with your ChatGPT plan or an API key. Includes common install fixes.
- Your First Session with Codex CLIStart Codex in a project folder, type a first request, choose how much it may do without asking, and learn how to interrupt it and how to quit the session.
- Install a Skill in Codex CLIGive Codex a new superpower: install a curated skill with one line, or copy a skill folder into the right place, then pick it from the skills menu.
- Add an MCP Connector to Codex CLIConnect Codex CLI to another tool or service with one command, check the connection inside a session, and learn where Codex saves your connectors.