Does Chrome DevTools MCP work with ChatGPT (Codex)?
Yes. Chrome DevTools MCP passed every step of our test in ChatGPT (Codex) on Oct 14, 2026: it installed, connected, its tools were visible, and an agent used it to finish a real task.
Result
ResultPassed
Date testedOct 14, 2026
Plan tested onChatGPT Plus
App versioncodex-cli 0.162.0-alpha.17.2
Modelaccount default (ChatGPT Plus)
Steps
- install OK
- connected OK
- tools visible OK
- agent task: click reveal OKnavigate + interact + read back. The code is computed by page JavaScript only after the click.
From our own harness run, not the maker’s claims. How we test.
What happened in this run
Install config we used
[mcp_servers.chrome-devtools]
command = "npx"
args = ["-y", "chrome-devtools-mcp@latest", "--headless", "--isolated"]Connection check
server answered tool calls during the taskTools check
verified via task step: agent saw and called the server's tools
Agent task: click reveal
- Tool calls, in order:
chrome-devtools:new_page,chrome-devtools:take_snapshot,chrome-devtools:click
Raw details from our harness log for this run. Secrets redacted.
Set it up in ChatGPT (Codex)
Copy-paste config for every app is on the Chrome DevTools MCP page. Not connecting? ChatGPT (Codex) MCP troubleshooting.
Other apps we tested it in: Claude Code (passed) · Cursor (passed) · Claude Desktop (passed).