OpenAI Codex CLI

Looking for Codex CLI docs?

Quick-jump to the official docs. Also wondering how to connect Codex CLI through a cheaper, more reliable API? Keep scrolling.

Official Docs →↓ Why CodeGateway

Quick Navigation

Jump straight to the most-searched Codex CLI docs

Install & Setup

Get Codex CLI running in 90 seconds on macOS, Linux, or Windows

Official docs

AGENTS.md Guide

Customise your AI coding agent with rules and workflows

Official docs

Why connect Codex CLI through CodeGateway?

Codex CLI connects to OpenAI by default. But if you want to save money, avoid geo-restrictions, and use one key for everything — CodeGateway is the better backend.

Cheaper

Pay-as-you-go at official price × service markup. No hidden fees. The more you spend, the lower your markup — as low as 1.08×. No monthly fee, no minimum top-up.

Stable Access

Multi-region routing on Cloudflare's global edge resolves 451 region errors and connection timeouts, with lower latency than a direct connection in many regions.