How to install MCP UI in Codex

To install MCP UI in Codex, run "codex mcp add mcp-ui -- npx -y @mongodb-js/mcp-ui" in your terminal, then type /mcp in Codex to check it.

Built from the published package · server updated yesterday

Run the install command

In a terminal, run:

codex mcp add mcp-ui -- npx -y @mongodb-js/mcp-ui

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

MCP server for interacting with the Supabase platform

Built-in MCP server for ArcadeDB multi-model database (graph, document, vector, time-series)

MCP Toolbox for Databases enables your agent to connect to your database.

Does MCP UI work in Codex?

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

MCP UI 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 MCP UI safe?

It scores 91 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.