What it does
Chrome's official DevTools server puts a real browser and its instrumentation behind MCP tools: navigate, take an accessibility snapshot, click, fill forms, screenshot, evaluate scripts, plus the things a plain automation driver cannot give you — a recorded performance trace with insight analysis, the full network request list, console messages, and heap snapshots. That makes it a debugging and performance server rather than another scraping one. Runs locally over stdio and drives Chrome on your own machine.
Example prompts
- Load my staging site, record a performance trace, and tell me what is hurting LCP.
- Open this page and list every network request that returned a 4xx or 5xx.
