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Chrome recently shipped navigator.modelContext in Early Preview. It's a browser API that lets any website expose typed, callable tools to AI agents. I built webmcp-react because we wanted a simple way to add tools to our React app and figured others could benefit from it as well. You wrap your app in <WebMCPProvider>, call useMcpTool with a Zod schema, and that's it. Handles StrictMode, SSR, dynamic mount/unmount, and all of the React lifecycle. It also comes with a Chrome extension in the repo that acts as a bridge for MCP clients (Claude Code, Cursor, etc.), since they can't access navigator.modelContext directly. Once Chrome ships native bridging, will depracate the extension. I expect the spec may evolve, but contributions, feedback, and issues welcome! |