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How to install Open Pencil MCP in Codex
To install Open Pencil MCP in Codex, run "codex mcp add open-pencil-mcp -- npx -y @open-pencil/mcp" in your terminal, then type /mcp in Codex to check it.
Built from the published package · server updated 2 days ago
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Run the install command
In a terminal, run:
codex mcp add open-pencil-mcp -- npx -y @open-pencil/mcp - 2
Check it
Inside Codex, type /mcp to see the server and its tools.
MCP servers run with your permissions. If Open Pencil MCP needs an API key, add it under env in the config. Check its README.
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Questions
Does Open Pencil MCP work in Codex?
Yes. Codex supports mcp servers in the codex cli and ide extension, and Open Pencil MCP installs with the steps above.
Open Pencil 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 Open Pencil MCP safe?
It scores 94 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.