We build tools for developers who ship fast and care about craft.
| Project | Description | |
|---|---|---|
| 1code | Orchestration layer for coding agents (Claude Code, Codex) | |
| 21st.dev | npm for design engineers — largest marketplace of shadcn/ui components, blocks and hooks | |
| Magic MCP | MCP server for AI-powered frontend development in Cursor, Windsurf, and Cline | |
| 21st SDK | The fastest way to add an AI agent to your app — runtimes, sandboxed execution, streaming, drop-in React components | |
| Agent Elements | Production-ready React components for chat, tools, and AI workflows — a shadcn-style registry of agent UI primitives |
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Repositories
- magic-mcp Public
It's like v0, but in your Cursor / Claude Code / Windsurf: search 10,000+ React/Tailwind components, generate new UI with AI, and publish your own — right from your editor. Magic MCP is now the 21st MCP; this package keeps old configs working. Setup: 21st.dev/mcp
- codex-plugin Public
21st.dev Codex plugin (self-hosted marketplace): bundles the 21st-cli skill + the remote 21st MCP server.
- claude-code-plugin Public
21st.dev Claude Code plugin: bundles the 21st-cli skill + the remote 21st MCP server in one install.
- skill Public
21st.dev agent skill: search, install and publish React/shadcn components, themes and templates from the terminal. Install with: npx skills add 21st-dev/skill
- 21st-sdk Public
- registry Public
Open-source CLI for managing private React component registries — publish, install, search, and share components with your team. Works with any AI agent that supports SKILL.md (Claude Code, Cursor).
- phion Public
- agent-elements Public
- .github Public
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