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Skybridge contains 2 main packages that can be used together or independently.

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The packages

  • skybridge/server: A drop-in replacement for the official MCP SDK that adds widget registration and type inference capabilities.
  • skybridge/web: A React library providing hooks, components, and the runtime glue to render your widgets inside ChatGPT’s iframe environment.

Use skybridge/server

Best if: you’re using the official TypeScript MCP SDK and want to add rich UI widgets with full type safety.

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Option 2: use skybridge/web only

Use skybridge/web only

Best if: you already have an MCP server in a non-TypeScript runtime and only want React hooks for UI components.