Chrome DevTools Protocol (CDP) is the core communication protocol for Chromium browser debugging tools: it's based on JSON format and enables bidirectional real-time interaction between clients and the browser kernel through WebSocket.
On September 23, 2025, Google released Chrome DevTools MCP, currently at version 0.9.0. Google positions it as an assistant for AI coding agents to handle debugging and performance testing, improving web development debug capabilities. See the official blog for use cases: Chrome DevTools (MCP) for your AI agent.
This post analyzes Chrome DevTools MCP's implementation by examining the source code and MCP output, exploring its capabilities and limitations.