How to install Dev MCP in Codex

To install Dev MCP in Codex, run "codex mcp add dev-mcp -- npx -y @shopify/dev-mcp" in your terminal, then type /mcp in Codex to check it.

Built from the published package · server updated 4 days ago

Run the install command

In a terminal, run:

codex mcp add dev-mcp -- npx -y @shopify/dev-mcp

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

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Does Dev MCP work in Codex?

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

Dev MCP 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 Dev MCP safe?

It scores 86 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.