How to install Ng Diagram MCP in Codex
To install Ng Diagram MCP in Codex, run "codex mcp add ng-diagram-mcp -- npx -y @ng-diagram/mcp" 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 ng-diagram-mcp -- npx -y @ng-diagram/mcp - 2
Check it
Inside Codex, type /mcp to see the server and its tools.
MCP servers run with your permissions. If Ng Diagram MCP needs an API key, add it under env in the config. Check its README.
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Questions
Does Ng Diagram MCP work in Codex?
Yes. Codex supports mcp servers in the codex cli and ide extension, and Ng Diagram MCP installs with the steps above.
Ng Diagram 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 Ng Diagram MCP safe?
It scores 82 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.
