Webmcp-react

Details

External ID

47263145

Source

HN

Company

—

Product

Webmcp-react

Website domain

github.com

Launched

March 5, 2026

Cohort

—

Upvotes

5

Upvotes percentile

0.1070110701107011

Tags

—

Fetched at

Sept. 7, 2026, 9:26 p.m.

Updated at

Sept. 7, 2026, 9:26 p.m.

Description

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!

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