Best Open Source codex Libraries
A curated list of the most popular GitHub repositories tagged with codex. Select any project to visualize its architecture and dive into the codebase using RepoMind's AI engine.
#1morluto/rea
Reverse engineer anything with agents, from app behavior down to native binaries.
#2NousResearch/hermes-agent
The agent that grows with you
#3stablyai/orca
Orca is the place for working with a fleet of agents (e.g. Grok Bot, Claude Code). Run any coding agent with your own subscription. Available on desktop, mobile and remote runtime.
#4ComposioHQ/awesome-claude-skills
A curated list of awesome Claude Skills, resources, and tools for customizing Claude AI workflows
#5nextlevelbuilder/ui-ux-pro-max-skill
An AI SKILL that provide design intelligence for building professional UI/UX multiple platforms
#6CherryHQ/cherry-studio
AI productivity studio with smart chat, autonomous agents, and 300+ assistants. Unified access to frontier LLMs
#7farion1231/cc-switch
A cross-platform desktop All-in-One assistant tool for Claude Code, Codex, OpenCode, openclaw & Gemini CLI.
#8manaflow-ai/cmux
Open source Ghostty-based macOS terminal with vertical tabs and notifications for AI coding agents. Built for multitasking, organization, and programmability.
#9getpaseo/paseo
Orchestrate multiple coding agents from desktop and mobile
#10iOfficeAI/AionUi
Free, local, open-source 24/7 Cowork app and OpenClaw for Gemini CLI, Claude Code, Codex, OpenCode, Qwen Code, Goose CLI, Auggie, and more | 🌟 Star if you like it!
#11citrolabs/ego-lite
The fastest browser for AI agents to run browser automation, built for sharing your logged-in browser state with your AI agents, like Codex or Claude Code, without disturbing you. Zero cost, zero config.
#12router-for-me/CLIProxyAPI
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
#13yetone/magpie
Every agent's model. One place. Codex on DeepSeek, Claude Code on Kimi, from the menu bar.
#14slopus/happy
Mobile and Web client for Codex and Claude Code, with realtime voice, encryption and fully featured
#15OrchestratorInc/agent-orchestrator
Open-source (Apache-2.0) orchestrator for Claude Code, Codex & 30+ coding agents. Plan, run and supervise agent teams from task to merged PR. Desktop (macOS, Windows, Linux) + iPhone & Android apps.
#16cobusgreyling/loop-engineering
Practical patterns, starters & CLI tools for loop engineering with AI coding agents. Design systems that prompt and orchestrate agents (inspired by Addy Osmani and Boris Cherny). Includes loop-audit, loop-init, loop-cost.
#17openai/codex-security
OpenAI's Codex Security CLI and TypeScript SDK for finding, validating, and fixing security vulnerabilities. npm: https://www.npmjs.com/package/@openai/codex-security
#18omnigent-ai/omnigent
Omnigent is an open-source AI agent framework and meta-harness: orchestrate Claude Code, Codex, Cursor, Pi, and custom agents — swap harnesses without rewriting, enforce policies and sandboxing, and collaborate in real time from any device.
#19genspark-ai/genoffice
Free, open-source AI Office suite: Docs, Sheets, Slides, PDF, Markdown and HTML editors with a built-in AI agent, plus a `genoffice` CLI and agent skill so Claude Code, Codex and Cursor can create and edit real .docx/.xlsx/.pptx files locally. Bring your own key. macOS, Windows & Linux.
#20humanlayer/humanlayer
The best way to get AI coding agents to solve hard problems in complex codebases.
#21backnotprop/plannotator
Annotate and review coding agent plans and code diffs visually, share with your team, send feedback to agents with one click.
#22steipete/CodexBar
Show usage stats for OpenAI Codex and Claude Code, without having to login.
#23loopx-project/loopx
A control plane with a durable state kernel for long-horizon agents and teams. Keep work moving and improving across sessions, with less human attention.
#24Q00/ouroboros
Agent OS: the agent gets smarter on its own. We just hold the line: Interview-gated, staged evaluation, budgeted evolution loop. MCP server, 14 runtimes: Claude Code, Codex CLI, Gemini CLI, OpenCode, Copilot, Kiro and more.
#25weave-os/router
Model router for agentic systems. Routes every prompt to the right model in <50ms. Cut costs 40-70% with just an endpoint change.
#26milind-soni/OpenMausBot
Open-source Grok Bot alternative with a virtual machine that bots can use
#27mksglu/context-mode
Privacy-first. MCP is the protocol for tool access. We're the virtualization layer for context.
#28qixing-jk/all-api-hub
All-in-one New-API/Sub2API account hub: balance/usage dashboard, auto check-in, one-click keys, price comparison, health checks, plus advanced channel management | 一站式 New-API/Sub2API 等中转站账号管理：余额/用量看板、自动签到、密钥一键使用、价格对比、可用性测试，另提供高级渠道管理
#29chaitin/MonkeyCode
AI coding platform for teams
#30zenbu-labs/terminal-browser
A real browser inside your terminal
#31SeemSeam/claude_codex_bridge
Visible multi-agent CLI workspace for mixing Codex, Claude, Gemini, Kimi, Qwen, Cursor, Copilot, Pi, OpenCode, and other AI coding agents
#32Javis603/token-monitor
Local-first desktop widget for tracking token usage, costs, limits, and session activity across 46+ AI coding tools—including Claude Code, Codex, Cursor, OpenCode, OpenClaw, and more—with multi-device sync.
#33runkids/skillshare
📚 Sync skills, agents, MCP, plugins to all AI CLI tools with one command and simplify team sharing.
#34jnMetaCode/agency-orchestrator
🚀 One sentence → your one-person company of AI experts → complete deliverable in minutes. 276 CN + 184 EN + 5 more languages (ko/ru/pt-BR/id/ar) · zero-code YAML · auto-verified acceptance · Web Studio / Desktop / Docker · 15 LLM providers (11 key-free). 一句话组建你的「一人公司」AI 专家团队，几分钟交付完整方案；验收自动核验，网页 / 桌面 / Docker 全渠道。
#35yyjeqhc/webcodex
Give cloud AI agents a real development environment on your own machines.
#36Folkbench/folkbench
AI API 中转站评测排行与切换工具：实测可用率、延迟与价格 · Open-source AI API relay benchmark, rankings & switcher for Claude Code / Codex
#37jau123/MeiGen-AI-Design-MCP
Discover inspiration and create images and videos with the latest AI models. Works with ChatGPT, Claude, Cursor, and other MCP clients.
#38theopenco/llmgateway
Route, manage, and analyze your LLM requests across multiple providers with a unified API interface.
#39deepcoldy/botmux
Bridge Feishu/Lark to AI coding CLIs — Claude Code, Codex, Gemini, OpenCode… every DM, group or topic spawns its own live-streaming CLI session
#40krishhgg/Insomnia
A macOS menu bar app that safely keeps your MacBook awake with the lid closed, for timed agent sessions.
#41specstoryai/getspecstory
Install our local first extensions for your favorite AI IDE or Terminal Agent. Process your histories into reusable skills with Lore. Sync your conversations to the cloud. File issues and requests.
#42autonomous-ai/openharness
The ultimate harness for coding agents and beyond. All your agents. All your machines. One command center. Start with code, then follow your curiosity and build across disciplines: CAD, circuits, robots, games and music.
#43917Dhj/DeepPaperNote
DeepPaperNote is an agent skill for deep-reading a single paper and generating high-quality Obsidian-style research notes. Works with Claude Code, Codex, Cursor, Copilot, Gemini CLI, and more.
#44devswha/herdr-web-ui
Browser and phone client for herdr: chat and live terminal for every agent pane, remote PCs over SSH, web push alerts
#45udecode/dotai
Skills for agents.
#46asklokesh/loki-mode
Autonomous software factory. Give it a GitHub issue, a spec or a one-line task; get back a pull request with a signed receipt anyone can re-check offline. Runs on your machine with your own keys: Claude, Codex, OpenCode.
#47openfilm/openfilm
The open source AI video agent: turns any coding agent into a video agent, with an editor to change anything it makes.
#48zenstory-ai/novel-to-game
Agent skills for source-grounded novel-to-game adaptation (小说改编游戏 / story to game): cited design docs, target-runtime builds, evidence-based QA. Three playable browser examples. For Claude Code, Codex, and Kimi Code.
#49rome-os/rome
A compounding agent OS for recursive agents. Also an open source alternative to Grok Bot and Meta's Muse.
#50777genius/agent-notifications
🔔 Cross-platform smart notifications for Claude/Codex/OpenCode/Cursor/Gemini. Desktop alerts, sounds, click-to-focus, and webhooks. macOS, Linux, and Windows.