Skybridge: The Full-Stack Open Source React Framework for MCP Apps

Skybridge: The full-stack open source React framework for MCP Apps | Product Hunt

Skybridge

Launching today

The full-stack open source React framework for MCP Apps

13 followers

The full-stack open source React framework for MCP Apps

13 followers

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Testing and QA software

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Vibe Coding Tools

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MCP apps are the new website: they're real, interactive apps that run right inside AI assistants like ChatGPT and Claude. The tooling to build them didn't exist, so we built it. Meet Skybridge, the React framework that handles the infrastructure and the dev loop so you can focus on your features: MCP server, view rendering, client compatibility, testing tunnel, and more. Code once, ship everywhere. Already +500K downloads and dozens of apps in the stores!

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Launch tags:Open Source•Developer Tools•Artificial Intelligence

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👋 Hey Product Hunt!

The internet is going headless. More and more, people don't open a website or an app, they just ask an assistant. That's making MCP Apps the new UI: real, interactive apps that run right inside Claude, ChatGPT and the rest. We think it's one of the biggest shifts in how software gets built and used right now.

While building these apps at Alpic, we kept hitting the same wall: every host (Claude, ChatGPT, Cursor…) has its own quirks, and writing the plumbing to support all of them is painful. So we built Skybridge. It is an open-source framework to build MCP apps, from idea to the official app stores. Code once, ship everywhere.

It abstracts away the implementation differences, so your app runs the same in Claude, ChatGPT, VS Code and any MCP-compatible client. It bundles a full local emulator, Hot Module Reload and an instant tunnel to connect your local app to Claude and ChatGPT. Agents are first-class users too: Skybridge gives your coding agent everything it needs to build an MCP app end-to-end.

Want proof the hard parts work? Have a look at our showcase page. You'll find many of the apps the community and us made with Skybridge and published to the stores. Skybridge already powers dozens of apps live in the stores.

What's happening in the MCP world right now is wild, and we can't wait to see what you build with it 💫

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19d ago

Huge👏 congrats @julienvallini on the release, the headless web framing is spot on. love it's a open source, qq. do we have to deploy to alpic cloud to get the store auditing features or can we run the full beacon compliance scan locally via the cli?

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11m ago

Maker

Hey @priya_kushwaha1, thanks for the support! :) Your MCP server doesn't need to be hosted on Alpic to run the compliance check. Any public MCP server can be audited, wherever it's hosted.

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4m ago

Maker

👋 Hey Product Hunt! I'm Fred, co-founder and CTO of Alpic, and core maintainer of Skybridge!

When ChatGPT Apps launched in October 2025, the OpenAI Apps SDK was just a page of documentation. No runtime, no tooling, nothing. So we built the missing SDK ourselves. That was Skybridge, day one.

But the deeper frustration was the feedback loop. Hot Module Reload, instant iteration, host context mocking (like locale, theme, or screen size), things web developers have taken for granted for a decade, mostly natively supported in modern browsers, simply didn't exist for AI Apps. Every change meant a full restart, a metadata refresh, and manually reconnecting to your conversational agent. The stack was brittle at best. When your feedback loop takes ages, you stop experimenting. You stop building.

So the DevTools became a core pillar of Skybridge: a local-only environment where you can iterate freely on your app before ever connecting it to Claude or ChatGPT. Tight loop, no friction.

Fully open-source. Because foundational tooling for this new layer of the web should be built in the open.

Since then, we've seen the number of apps built with Skybridge skyrocket! We've made the DevTools both human- and agent-friendly, enabling development loops we couldn't have even dreamed of 6 months ago. Can't wait to see what experiences people will bring to life with Skybridge.

If you want to give it a go yourself, check out our getting started guide!

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12m ago