How to install Atomic Mail in Codex

To install Atomic Mail in Codex, run "codex mcp add atomic-mail -- npx -y @atomicmail/mcp-modelcontextprotocol" in your terminal, then type /mcp in Codex to check it.

Built from the published package · server updated 23 days ago

Run the install command

In a terminal, run:

codex mcp add atomic-mail -- npx -y @atomicmail/mcp-modelcontextprotocol

2
Check it
Inside Codex, type /mcp to see the server and its tools.

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

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Questions

Does Atomic Mail work in Codex?

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

Atomic Mail 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 Atomic Mail safe?

It scores 82 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.