a2ui
Open-source generative UI framework: agents stream declarative JSON, and apps render it with native components in React, Angular, Lit, Flutter, SwiftUI and Jetpack Compose.
Install / Use
claude mcp add a2ui-project -- npx -y github:a2ui-project/a2uiIf the server publishes to npm under a different name, use that package instead — check the repo README.
MCP Server
Model Context Protocol server
Quality Score
Category
AI & Machine LearningSupported Platforms
Our assessment of a2ui
a2ui scores 90/100 on our quality scale, 356th of 966 AI & Machine Learning skills we index (top 37%).
We have not analysed the MCP Server file itself yet, so the content part of this score is an estimate until our crawler reaches it.
With 16,985 GitHub stars, it is one of the more widely adopted skills in the catalogue.
Maintenance, license and trust
- The repository was last updated today, so a2ui is actively maintained.
- It is released under the Apache-2.0 license, a permissive license that allows use, modification and commercial use with attribution.
- Its trust signals score 100/100, with no cautions. These come from repository metadata, not a code audit — read the skill file before letting an agent act on it.
a2ui compared with similar skills
All 4 of these similar skills score higher than a2ui; compare them before choosing.
| Skill | Score | Stars | Updated | Format |
|---|---|---|---|---|
| a2ui (this skill)by a2ui-project | 90 | 17.0k | today | MCP Server |
| claude-memby thedotmack | 100 | 113.5k | today | CLAUDE.md |
| Agent-Reachby Panniantong | 100 | 109.2k | today | CLAUDE.md |
| Understand-Anythingby Egonex-AI | 100 | 90.9k | 10d ago | CLAUDE.md |
| headroomby headroomlabs-ai | 100 | 78.9k | today | CLAUDE.md |
Frequently asked questions
- How do I install a2ui?
- Run
claude mcp add a2ui-project -- npx -y github:a2ui-project/a2ui. The install tabs above show the steps for each supported agent. - Which AI agents does a2ui work with?
- It is written for Claude Code and Claude Desktop, as a MCP Server file. Other agents that read the same format can often use it too.
- Is a2ui safe to use?
- It is Apache-2.0-licensed and scores 100/100 on trust signals. Skills are instructions an agent will follow, so read the file before installing it and do not approve commands you do not understand.
- Is a2ui still maintained?
- The repository was last updated today, so a2ui is actively maintained.
Related Skills
claude-mem
113.5kPersistent Context Across Sessions for Every Agent – Captures everything your agent does during sessions, compresses it with AI, and injects relevant context back into future sessions. Works with Claude Code, OpenClaw, Codex, Gemini, Hermes, Copilot, OpenCode + More
Agent-Reach
109.2kGive your AI agent eyes to see the entire internet. Read & search Twitter, Reddit, YouTube, GitHub, Bilibili, XiaoHongShu — one CLI, zero API fees.
Understand-Anything
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headroom
78.9kCompress tool outputs, logs, files, and RAG chunks before they reach the LLM. 20% fewer tokens for coding agents, 60-95% fewer tokens for JSON, same answers. Library, proxy, MCP server.
Languages
Trust signals
From repository metadata: license, adoption, age and documentation. Not a code audit — see the Safety scan above for what the skill file itself contains.