Skybridge MCP Apps SDK

Skybridge - the MCP Apps framework

<p align="center"> <a href="https://docs.skybridge.tech"> <picture> <source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/alpic-ai/skybridge/main/docs/images/skybridge-readme-banner-dark.png" /> <img alt="Skybridge, the full-stack React framework for MCP Apps and MCP servers" src="https://raw.githubusercontent.com/alpic-ai/skybridge/main/docs/images/skybridge-readme-banner-light.png" width="100%" /> </picture> </a> </p> <p align="center"> <strong>The full-stack React framework for MCP Apps and MCP Servers.</strong> </p> <p align="center"> <a href="https://docs.skybridge.tech">Documentation</a> · <a href="https://docs.skybridge.tech/get-started/quickstart">Quickstart</a> · <a href="https://github.com/alpic-ai/skybridge/tree/main/examples">Examples</a> </p> <p align="center"> <a href="https://www.npmjs.com/package/skybridge"><picture><source media="(prefers-color-scheme: dark)" srcset="https://img.shields.io/npm/v/skybridge?color=77F5EE&amp;labelColor=161B22&amp;style=for-the-badge"><img alt="npm version" src="https://img.shields.io/npm/v/skybridge?color=E3FAF7&amp;labelColor=F6F8FA&amp;style=for-the-badge"></picture></a> <a href="https://www.npmjs.com/package/skybridge"><picture><source media="(prefers-color-scheme: dark)" srcset="https://img.shields.io/npm/dm/skybridge?color=D7FFC8&amp;labelColor=161B22&amp;style=for-the-badge"><img alt="npm downloads" src="https://img.shields.io/npm/dm/skybridge?color=E8FBD9&amp;labelColor=F6F8FA&amp;style=for-the-badge"></picture></a> <a href="https://discord.com/invite/gNAazGueab"><picture><source media="(prefers-color-scheme: dark)" srcset="https://img.shields.io/badge/Discord-community-77F5EE?style=for-the-badge&amp;logo=discord&amp;logoColor=77F5EE&amp;labelColor=161B22"><img alt="Discord community" src="https://img.shields.io/badge/Discord-community-E3FAF7?style=for-the-badge&amp;logo=discord&amp;logoColor=5865F2&amp;labelColor=F6F8FA"></picture></a> <a href="https://github.com/alpic-ai/skybridge/blob/main/LICENSE"><picture><source media="(prefers-color-scheme: dark)" srcset="https://img.shields.io/github/license/alpic-ai/skybridge?color=D7FFC8&amp;labelColor=161B22&amp;style=for-the-badge"><img alt="License: MIT" src="https://img.shields.io/github/license/alpic-ai/skybridge?color=E8FBD9&amp;labelColor=F6F8FA&amp;style=for-the-badge"></picture></a> </p>

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:

<p align="center"> <a href="https://www.datadoghq.com"><picture><source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/alpic-ai/skybridge/main/docs/images/user-logos/datadog-dark.svg"><img src="https://raw.githubusercontent.com/alpic-ai/skybridge/main/docs/images/user-logos/datadog-light.svg" alt="Datadog" height="24"></picture></a> &nbsp;&nbsp; <a href="https://bitmovin.com"><picture><source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/alpic-ai/skybridge/main/docs/images/user-logos/bitmovin-dark.svg"><img src="https://raw.githubusercontent.com/alpic-ai/skybridge/main/docs/images/user-logos/bitmovin-light.svg" alt="Bitmovin" height="22"></picture></a> &nbsp;&nbsp; <a href="https://www.evaneos.com"><picture><source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/alpic-ai/skybridge/main/docs/images/user-logos/evaneos-dark.svg"><img src="https://raw.githubusercontent.com/alpic-ai/skybridge/main/docs/images/user-logos/evaneos-light.svg" alt="Evaneos" height="18"></picture></a> &nbsp;&nbsp; <a href="https://www.touchstream.media"><picture><source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/alpic-ai/skybridge/main/docs/images/user-logos/touchstream-dark.svg"><img src="https://raw.githubusercontent.com/alpic-ai/skybridge/main/docs/images/user-logos/touchstream-light.svg" alt="Touchstream" height="24"></picture></a> &nbsp;&nbsp; <a href="https://www.cottages.com"><picture><source media="(prefers-color-scheme: dark)" srcset="https://raw.githubusercontent.com/alpic-ai/skybridge/main/docs/images/user-logos/cottages-dark.svg"><img src="https://raw.githubusercontent.com/alpic-ai/skybridge/main/docs/images/user-logos/cottages-light.svg" alt="Cottages.com" height="24"></picture></a> </p>

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.

<a href="https://github.com/alpic-ai/skybridge/graphs/contributors"> <img src="https://contrib.rocks/image?repo=alpic-ai/skybridge" alt="Skybridge contributors"> </a>

Example templates

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

Basic

Preview	App	Description	Demo	Code
<img src="docs/images/showcase-example.png" alt="Everything" width="160" />	Everything	Comprehensive playground app showcasing all Skybridge hooks and features.	Try Demo	View code

Use cases

Preview	App	Description	Demo	Code
<img src="docs/images/showcase-capitals.png" alt="Capitals Explorer" width="160" />	Capitals Explorer	Interactive world map with geolocation, country information, and dynamic capital exploration.	Try Demo	View code
<img src="docs/images/showcase-flight-booking.png" alt="Flight Booking" width="160" />	Flight Booking	Flight search carousel with route details, pricing comparison, and external booking.	Try Demo	View code
<img src="docs/images/showcase-ecommerce.png" alt="Ecommerce Carousel" width="160" />	Ecommerce Carousel	Product carousel with persistent cart, localization, theme switching, and modal dialogs.	Try Demo	View code
<img src="docs/images/showcase-investigation-game.png" alt="Investigation Game" width="160" />	Investigation Game	Multi-screen mystery game with fullscreen mode, dynamic story progression and context asynchronicity demonstration	Try Demo	View code
<img src="docs/images/showcase-productivity.png" alt="Productivity" width="160" />	Productivity	Interactive analytics dashboard with charts, theme adaptation, localization, fullscreen mode, and bidirectional tool calls.	Try Demo	View code
<img src="docs/images/showcase-times-up.png" alt="Time's Up" width="160" />	Time's Up	Word-guessing party game where the user gives hints and the AI tries to guess.	Try Demo	View code
<img src="docs/images/showcase-lumo.png" alt="Lumo Interactive AI Tutor" width="160" />	Lumo — Interactive AI Tutor	Adaptive tutor with Mermaid diagrams, mind maps, quizzes, and fill-in-the-blank exercises.	Try Demo	View code

Auth

Preview	Provider	Description	Code
<img src="docs/images/descope.webp" alt="Auth Descope" width="160" />	Descope	Full OAuth authentication with Descope and personalized coffee shop search.	View code
<img src="docs/images/showcase-clerk.png" alt="Auth Clerk" width="160" />	Clerk	Full OAuth authentication with Clerk and personalized coffee shop search.	View code
<img src="docs/images/showcase-workos.png" alt="Auth WorkOS AuthKit" width="160" />	WorkOS AuthKit	Full OAuth authentication with WorkOS AuthKit and personalized coffee shop search.	View code
<img src="docs/images/showcase-stytch.png" alt="Auth Stytch" width="160" />	Stytch	Full OAuth authentication with Stytch and personalized coffee shop search.	View code
<img src="docs/images/showcase-auth0.png" alt="Auth Auth0" width="160" />	Auth0	Full OAuth authentication with Auth0 and personalized coffee shop search.	View code
<img src="docs/images/showcase-authplane.png" alt="Auth Authplane" width="160" />	Authplane	Full OAuth authentication with Authplane and personalized coffee shop search.	View code

UI and component libraries

Preview	App	Description	Demo	Code
<img src="docs/images/showcase-manifest-ui.png" alt="Manifest UI" width="160" />	Manifest UI	Agentic component library example for rich AI-powered experiences.	Try Demo	View code
<img src="docs/images/showcase-generative-ui.png" alt="Generative UI" width="160" />	Generative UI	LLM-generated dynamic UIs with json-render and 36 pre-built shadcn/ui components.	Try Demo	View code
<img src="docs/images/showcase-mcpcn.png" alt="mcpcn" width="160" />	mcpcn	Agentic component library starter with pre-built mcpcn components and generative UI via json-render.	Try Demo	View code