Find the best skills and plugins for OpenAI Codex, the AI coding agent.
Curated Agent Skills for Microsoft & Azure – giving AI coding assistants structured, real-time expertise from Microsoft Learn docs.
Codex skill: aggressive web research via OpenAI-compatible Grok endpoint (2api)
Codex Skills Library is a curated library of reusable Codex skills for developers, individuals, and teams.
Wrap Gemini CLI, Antigravity, ChatGPT Codex, Claude Code, Qwen Code, iFlow as an OpenAI/Gemini/Claude/Codex compatible API service, allowing you to enjoy the free Gemini 2.5 Pro, GPT 5, Claude, Qwen model through API
CRS-自建Claude Code镜像，一站式开源中转服务，让 Claude、OpenAI、Gemini、Droid 订阅统一接入，支持拼车共享，更高效分摊成本，原生工具无缝使用。
Show usage stats for OpenAI Codex and Claude Code, without having to login.
```bash
brew install --cask steipete/tap/codexbar
```Sub2API-CRS2 一站式开源中转服务，让 Claude、Openai 、Gemini、Antigravity订阅统一接入，支持拼车共享，更高效分摊成本，原生工具无缝使用。
⚡️ OpenAI PHP is a supercharged community-maintained PHP API client that allows you to interact with OpenAI API.
| Tool | Stars | Language | License | Score |
|---|---|---|---|---|
| Agent-Skills | ★ 444 | — | CC-BY-4.0 | 43 |
| grok-skill | ★ 128 | Python | — | 38 |
| codex-skills-library | ★ 47 | — | — | 39 |
| CLIProxyAPI | ★ 20.9k | Go | MIT | 53 |
| hermes-agent | ★ 15.4k | Python | MIT | 53 |
| skills | ★ 15.4k | Python | — | 49 |
| claude-relay-service | ★ 10.2k | JavaScript | MIT | 50 |
| CodexBar | ★ 9.5k | Swift | MIT | 50 |
| sub2api | ★ 8.8k | Go | MIT | 50 |
| client | ★ 5.8k | PHP | MIT | 48 |
The top openai codex skills tools include Agent-Skills, grok-skill, codex-skills-library. These are ranked by our composite score based on GitHub stars, community activity, and code quality.
Most tools listed here are open-source. 7 out of 10 have explicit open-source licenses, making them free to use and modify.
Consider your tech stack (language compatibility), project scale (stars indicate community trust), and specific features you need. Use the comparison table above to evaluate side by side.
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