cli.md Codex Docs, 2026-02-19 20:37 UTC → 2026-02-23 18:27 UTC

1# Codex CLI1# Codex CLI

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3Pair with Codex in your terminal

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5Codex CLI is OpenAI's coding agent that you can run locally from your terminal. It can read, change, and run code on your machine in the selected directory.3Codex CLI is OpenAI's coding agent that you can run locally from your terminal. It can read, change, and run code on your machine in the selected directory.

6It's [open source](https://github.com/openai/codex) and built in Rust for speed and efficiency.4It's [open source](https://github.com/openai/codex) and built in Rust for speed and efficiency.

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74Give Codex access to additional third-party tools and context with Model Context Protocol (MCP).](https://developers.openai.com/codex/mcp)[### Approval modes72Give Codex access to additional third-party tools and context with Model Context Protocol (MCP).](https://developers.openai.com/codex/mcp)[### Approval modes

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76Choose the approval mode that matches your comfort level before Codex edits or runs commands.](https://developers.openai.com/codex/cli/features#approval-modes)74Choose the approval mode that matches your comfort level before Codex edits or runs commands.](https://developers.openai.com/codex/cli/features#approval-modes)

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78[Next

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80Features](https://developers.openai.com/codex/cli/features)