How to install Devtools Protocol in Codex

To install Devtools Protocol in Codex, run "codex mcp add devtools-protocol -- npx -y @gjsify/devtools-protocol" in your terminal, then type /mcp in Codex to check it.

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Run the install command

In a terminal, run:

codex mcp add devtools-protocol -- npx -y @gjsify/devtools-protocol

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Check it
Inside Codex, type /mcp to see the server and its tools.

MCP servers run with your permissions. If Devtools Protocol needs an API key, add it under env in the config. Check its README.

Install Devtools Protocol in another app

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Questions

Does Devtools Protocol work in Codex?

Yes. Codex supports mcp servers in the codex cli and ide extension, and Devtools Protocol installs with the steps above.

Devtools Protocol does not show up in Codex. What now?

Restart Codex fully, check the JSON is valid, and make sure Node.js (for npx) is installed. See common MCP errors and fixes.

Is Devtools Protocol safe?

It scores 84 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.