What is Codex CLI?
Codex CLI is an open-source AI agent in the Coding Agents category, built by openai in Rust. Lightweight coding agent that runs in your terminal
As of the latest refresh it has 96200 GitHub stars, ranking #7 among the open-source AI agents we track in our live agent rankings.
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Most agents like Codex CLI extend their capabilities through the Model Context Protocol. Browse our MCP servers directory to add tools, the Claude Code skills directory for reusable workflows, or compare the major coding agents in our coding agent guide.
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