The best happy alternatives

opencodex

lidge-jun/opencodex

Universal provider proxy for OpenAI Codex & Claude Code — use any LLM (Claude, Gemini, Grok, DeepSeek, Ollama…) with Codex CLI, App, SDK, and Claude Code

Choose opencodex if…

• you specifically need ai-gateway or ai-tools

Shares claude-code, codex, codex-cli with happy.

context-mode

mksglu/context-mode

Context window optimization for AI coding agents. Sandboxes tool output (98% reduction), persists session memory, and enforces routing across 17 platforms via MCP + hooks.

Choose context-mode if…

• you want something your agent can install directly rather than a library to wire up yourself
• you specifically need antigravity or claude

Shares claude-code, codex, codex-cli with happy.

orca

stablyai/orca

Orca is the ADE for working with a fleet of parallel agents. Run any coding agent with your own subscription. Available on desktop, mobile and remote runtime.

Choose orca if…

• you want the more widely starred option (114.2k)
• you specifically need ade or agent-ide

Shares claude-code, codex with happy.

OmniRoute

diegosouzapw/OmniRoute

Never stop coding. Free MIT AI gateway: one endpoint, 352 providers (150+ free), 1200+ models Kimi, Claude, GPT, Gemini, GLM, DeepSeek, MiniMax. Works with Claude Code, Codex, Cursor, OpenCode, Cline & Copilot. Quota-aware auto-fallback, RTK+Caveman compression saves 15-95% tokens, MCP/A2A, Desktop/PWA. Built by 550+ contributors

Choose OmniRoute if…

• you want the more widely starred option (84.1k)
• you specifically need a2a or ai-agents

Shares claude-code, codex with happy.

cherry-studio

CherryHQ/cherry-studio

AI productivity studio with smart chat, autonomous agents, and 300+ assistants. Unified access to frontier LLMs

Choose cherry-studio if…

• GNU Affero General Public License v3.0 suits your use better than MIT License
• you want something your agent can install directly rather than a library to wire up yourself
• you want the more widely starred option (53.2k)
• you specifically need agent-skills or ai-agent

Shares claude-code, codex with happy.

AionUi

iOfficeAI/AionUi

Open-source 24/7 Cowork app for OpenClaw, Hermes, Claude Code, Codex, OpenCode and 20+ more CLI Agent | Customize your assistants | Team them up｜Star if you like it!

Choose AionUi if…

• Apache License 2.0 suits your use better than MIT License
• you want something your agent can install directly rather than a library to wire up yourself
• you specifically need acp or agent-team

Shares claude-code, codex with happy.

paseo

getpaseo/paseo

Orchestrate multiple coding agents from desktop and mobile

Choose paseo if…

• you specifically need ade or agents

Shares claude-code, codex with happy.

holaOS

holaboss-ai/holaOS

Open-source agentic workspace enterprises can make their own. Connect the systems you already run — 100+ integrations, MCP, chat tools, apps, browser, local files — with shared memory. Any agent (Claude Code, Codex), any model, or BYOK. Set up in clicks, not months. Local-first: your data never leaves your machines.

Choose holaOS if…

• you prefer a smaller, narrower project to a large one
• you specifically need agent or agent-harness

Shares claude-code, codex with happy.

ctf-skills

ljagiello/ctf-skills

Agent skills for solving CTF challenges - web exploitation, binary pwn, crypto, reverse engineering, forensics, OSINT, and more

Choose ctf-skills if…

• you would rather work in Python than TypeScript
• you want something your agent can install directly rather than a library to wire up yourself
• you prefer a smaller, narrower project to a large one
• you specifically need agent-skills or claude-code-skills

Shares claude-code, codex, codex-cli with happy.

Understand-Anything

Egonex-AI/Understand-Anything

Graphs that teach > graphs that impress. Turn any code into an interactive knowledge graph you can explore, search, and ask questions about. Works with Claude Code, Codex, Cursor, Copilot, Gemini CLI, and more.

Choose Understand-Anything if…

• you want something your agent can install directly rather than a library to wire up yourself
• you want the more widely starred option (90.2k)
• you specifically need antigravity-skills or business-knowledge

Shares claude-code, codex with happy.

ruflo

ruvnet/ruflo

🌊 The original agent harness. Deploy intelligent multi-player swarms, coordinate autonomous workflows, and build conversational AI systems. Features adaptive memory, self-learning intelligence, federation, vector RAG integration, and native Claude Code / Codex / Hermes and many more Integrated

Choose ruflo if…

• you want something your agent can install directly rather than a library to wire up yourself
• you want the more widely starred option (80.8k)
• you specifically need agentic-ai or agentic-framework

Shares claude-code, codex with happy.

distilly

titanwings/distilly

Distilly — Distill how they think into reusable Skills for any Agent or Bot. Formerly Colleague Skill（原同事 Skill）.

Choose distilly if…

• you want something your agent can install directly rather than a library to wire up yourself
• you specifically need agent-skills or agentic-ai

Shares claude-code, codex with happy.