BrowserBee MCP Demo

Minimalist demo of a web app and browser extension which includes an MCP server, tested with the BrowserBee extension.

MCP in the Browser

• All messages are prefixed with mcp:
• Additional fields mcpSessionId and source are added to all messages
• ping message is used to advertise the MCP server to the browser extension

Web App

• MCPServerTransport uses window.postMessage to communicate with the BrowserBee extension.