How to install REA in Codex

To install REA in Codex, run "codex mcp add rea -- npx -y rea-agents" in your terminal, then type /mcp in Codex to check it.

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

Install REA in another app

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Does REA work in Codex?

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

REA 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 REA safe?

It scores 94 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.