Documentation

Put a live site tool in your MCP client

The first-run path keeps your existing supported Chromium browser. Load the extension, connect its local bridge to the first-party MCP server, then make one read-only Reddit call.

Public beta

The registry, extension, and bridge are actively developing

Expect rough edges and breaking changes before a stable release. WebMCP itself remains experimental in Chromium and requires its testing flag. Report problems through the project's GitHub issues.

Start here

Bridge quickstart

Check your runtime, install the macOS native host, configure the MCP server, approve the Reddit package in the browser, and invoke reddit_subreddit_hot.

Follow the quickstart

Load the extension

Download the beta ZIP, load its extracted folder, and learn how package installation stays explicit and browser-owned.

Download the extension ZIPExtension setup

Author a package

Read the data-only package format, API execution model, and validated worked example.

Package format