Summary: Skybridge is a comprehensive, full-stack TypeScript framework engineered to streamline the creation of sophisticated ChatGPT applications. It targets developers aiming to embed rich, interactive UIs directly within ChatGPT conversations, offering a modern, type-safe, and React-powered development experience that significantly enhances productivity compared to the low-level official SDK.

How It Works The framework champions end-to-end type safety through tRPC-style inference, ensuring consistency from server-side logic to client-side widgets. It integrates deeply with React, providing familiar hooks and components for UI development and state management, akin to React Query. A standout feature is the "Widget-to-Model Sync" mechanism, which utilizes data-llm to keep the ChatGPT model continuously updated with the state of user-facing UI elements, establishing a single source of truth across these dual surfaces and enabling more dynamic interactions.

Quick Start & Requirements Initiate a new project by cloning the official template: gh repo create my-app --template alpic-ai/apps-sdk-template --clone. Alternatively, integrate Skybridge into an existing project via package managers such as npm i skybridge, yarn add skybridge, pnpm add skybridge, bun add skybridge, or deno add skybridge. The project documentation recommends pnpm for setup. Comprehensive guides are available via the official Documentation and project Examples.

Highlighted Details

• Enhanced Developer Experience: Features Vite HMR for instant live reloading, integrated debug traces, and local devtools, eliminating tedious refresh cycles.
• Robust Type Safety: Offers full autocomplete for tools, inputs, and outputs, drastically reducing runtime errors and improving code maintainability.
• Dynamic UI-Model Synchronization: Enables UI components to trigger server actions and ensures the model reflects the current UI state for more responsive applications.
• Familiar State Management: Implements React Query-style hooks (isPending, isError, callbacks) for intuitive state handling.
• MCP Compatibility: Built as a drop-in replacement and extension for the official MCP SDK, ensuring seamless integration with existing ChatGPT app infrastructure.

Maintenance & Community Community interaction and support are channeled through GitHub Discussions, bug reporting via GitHub Issues, and real-time communication on their Discord server. The project is actively maintained by Alpic.

Licensing & Compatibility Skybridge is distributed under the permissive MIT License. This license permits broad usage, including integration into commercial and closed-source applications without significant restrictions.

Limitations & Caveats The project's README does not explicitly outline any specific limitations, such as alpha status, known bugs, or unsupported platforms. It is presented as a mature solution designed to overcome the inherent complexities of the raw ChatGPT SDK.