skybridge

Skybridge - the MCP Apps framework

About Skybridge

Skybridge helps developers build type-safe MCP Apps for Claude, ChatGPT and other UI-enabled MCP clients, with a complete set of tooling designed for both humans and agents.

Why? MCP Apps extend the Model Context Protocol with rich, interactive UI views rendered from MCP servers. Conversational apps need seamless interaction between the user, the UI, and the model. This means new UX patterns, developer tooling, and abstractions. Plus, the raw SDKs are low-level: no hooks, type safety, HMR, etc.

That's why we built Skybridge.

Features include:

• Delightful dev environment: Skybridge provides a dev server with a local emulator, hot module reload, and a permanent tunnel to connect your local app to Claude and ChatGPT.
• Write once, run everywhere: the framework abstracts implementation differences between MCP clients, so your app runs seamlessly in Claude, ChatGPT, VSCode, and any other MCP Apps compatible client.
• Agent-ready: powerful skills, CLI, and programmatic dev tool APIs, everything your coding agent needs to build MCP Apps end-to-end.
• Type-safe end-to-end: tRPC-style inference from MCP server tool definition to React view for type safety from server to frontend.
• React-first: Intuitive React Query-style hooks, with advanced state management.
• Example library: get started quickly with ChatGPT- and Claude-ready app examples for ecommerce, travel, SaaS, and more.

They chose to build their MCP Apps with Skybridge:

Get started

For agents

Install our skill for building MCP Apps and ChatGPT plugins:

npx skills add alpic-ai/skybridge -s skybridge

Once installed, ask your agent "What skills do you have?" to confirm, then try:

• Create a new MCP app
• Migrate my MCP server to the Skybridge framework
• Add a new view to my MCP app

For humans

Bootstrap a new project with:

npm create skybridge@latest my-app

For full install instructions, read our Quickstart guide.

Documentation

The Skybridge documentation covers the full lifecycle of building MCP Apps:

• Fundamentals: understand MCP Apps, ChatGPT plugins, and how Skybridge bridges both runtimes.
• Core concepts: learn about server <> model <> UI data flows, LLM context sync, type safety, and instant local iteration with our devtools.
• Guides: build real app behavior with tools, views, state, and model communication.
• API Reference: browse our MCP server APIs, React hooks, CLI commands, and runtime compatibility.

Deploy

Deploy Skybridge apps instantly on Alpic for scalable hosting, MCP-specific analytics, permanent tunneling, plugin directory compliance auditing and submission help. You can also self-host on any Node.js-compatible platform.

See our deployment guide for the full production path.

Community & Contributing

We'd love your help improving Skybridge. Here are a few ways to get involved:

• Bugs: If you run into a bug or unexpected behavior, open a GitHub Issue with a clear reproduction.
• Questions and ideas: Need help building with Skybridge or have ideas to improve the framework, docs, examples, or developer experience? Open an issue or share them on our Discord.
• Pull requests: For code or documentation changes, read the Contributing Guide before opening a PR.

Skybridge is released under the MIT License.

Contributors

Built and maintained with ❤️ by Harijoe, Fred Barthelet, and the Alpic team.

Example templates

Explore all our example templates in the Examples section of the documentation.

Basic

Use cases

Auth

UI and component libraries