Skybridge Review (2026): Pricing, Features & Honest Verdict

Skybridge is an open-source TypeScript framework for building MCP apps that run inside Claude, ChatGPT, and any MCP client from one codebase. We found it removes most of the painful protocol plumbing and lets you write standard React instead. Best for developers building MCP or ChatGPT apps. Price: free and MIT-licensed, with optional paid hosting from $30/mo. Rating: 8/10.

What is Skybridge?

Skybridge is a full-stack framework built by Alpic, a team based in Paris, for building apps on the Model Context Protocol. MCP is the standard that lets AI clients like Claude and ChatGPT load interactive third-party apps. Building one of those apps by hand means dealing with protocol bridging, state sync between the model and your UI, and platform differences between Claude and ChatGPT. Skybridge handles all of that so you write React and ship.

The traction is real, which is what made us take it seriously. Skybridge reports around 100,000 monthly downloads and says it powers more than 10% of apps on the Claude and ChatGPT stores, with users ranging from early-stage startups to teams at companies like Datadog and Bitmovin. For a framework this young in a category this new, that is strong evidence it works in production and not just in a demo.

Timing is the other reason it matters. MCP apps are where a lot of the interesting product work is heading, because they let your software show up inside the AI tools people already use all day instead of asking them to open one more tab. The clients are moving fast and the spec is still settling. A framework that keeps up with that churn so you do not have to is worth a lot, and Alpic contributes to the official MCP spec itself, which suggests they are close to the standard rather than chasing it.

What Are Skybridge’s Key Features?

Write once, run everywhere

The core promise is one codebase that runs across Claude, ChatGPT, VSCode, and any MCP-compatible client. Skybridge abstracts the implementation differences between platforms, so you are not maintaining a separate build for each AI host. If you have ever shipped the same feature three times for three platforms, you know what this saves.

Type-safe from server to UI

Skybridge gives you tRPC-style type inference that flows from your server tools all the way to your React views. Change a server tool and your editor flags the UI code that needs updating. For a category where the protocol is still moving, that type safety is what keeps a refactor from turning into a guessing game.

Local emulator and instant tunnel

You get a local emulator that renders the Claude and ChatGPT interfaces on your machine, plus Hot Module Reload and a stable public tunnel for testing against the real clients. You can see your app inside a simulated Claude window without deploying. That tight feedback loop is the single biggest time saver here, because testing MCP apps any other way is slow and fiddly.

Server audit for store compliance

Skybridge includes a server audit that validates your app against Claude and ChatGPT guidelines before you submit. Getting rejected from an app store and waiting for another review is a painful loop, so catching the issues locally is genuinely useful for anyone planning to publish.

How Much Does Skybridge Cost?

Skybridge itself is free. It is MIT-licensed open source, so you can use it, self-host on any Node.js platform, and modify it without paying anything. The money only enters if you deploy to Alpic, the hosting platform from the same team, and even that has a free tier.

Alpic hosting is free for up to 10,000 requests per month with 7-day analytics. The Pro plan is $30/mo for 200,000 requests and custom domains, and the Business plan is $300/mo for 2 million requests with an SLA. Extra requests run $150 per million. Compared to wiring up your own infrastructure with protocol bridging and OAuth handling, that is a fair price, and you can stay on the free framework plus free hosting tier indefinitely while you build.

The honest framing is that you are never forced onto Alpic. Because Skybridge is MIT-licensed and self-hostable on any Node.js platform, you can run the whole thing on infrastructure you already pay for and owe Alpic nothing. The hosting is a convenience play, bundling MCP-specific analytics, a permanent tunnel, and app-store submission help into one dashboard. For a small team that does not want to think about deployment, $30/mo is cheap. For a team with its own platform engineers, the free framework alone may be all you ever touch.

Who is Skybridge Best For?

Use Skybridge if you are a developer building an MCP app or a ChatGPT app and you already know React. It is aimed squarely at people who want to ship an interactive AI app fast without becoming a protocol expert first. Solo builders and product teams both fit, and the free tier means you can start without a budget conversation.

Skip Skybridge if you only need a plain MCP server with no user interface, since the framework’s value is in the interactive React layer. A simple tool-only server can be built with the lighter official SDK. Also skip it if your stack is not TypeScript, because Skybridge is TypeScript-first and you would be fighting the grain.

Best Skybridge Alternatives

The official MCP TypeScript SDK is the lower-level option from the protocol maintainers. It is free and flexible, but you build the UI bridging, state sync, and tooling yourself. Choose it if you want full control and do not mind the extra work.

MCP-UI is an open-source library focused on the interface layer for MCP apps. It is lighter than a full framework and good if you want UI components without the full Skybridge stack and emulator.

The ChatGPT Apps SDK from OpenAI is the native path if you only target ChatGPT. It is free and well documented, but it ties you to one platform, which is the exact lock-in Skybridge is built to avoid.

Final Verdict: Is Skybridge Worth It?

Skybridge is the clearest answer we have seen to a problem that is about to get a lot bigger. MCP apps are early, the tooling is rough, and building one by hand is tedious. Skybridge turns that into writing React, which most developers already do. The download numbers and store share suggest the team is not just shipping a clever README, they are shipping something people keep using.

Because the framework is free and MIT-licensed, the only real question is whether you trust a young framework in a moving standard. We think the answer is yes for most MCP app projects, especially since the type safety and emulator make the moving parts manageable. Start with the free framework and free Alpic tier, and only pay the $30/mo when your traffic outgrows it. For developers betting on MCP, this is the fastest way in.