How to install Cmssy in Codex
To install Cmssy in Codex, run "codex mcp add cmssy --env CMSSY_API_TOKEN=YOUR_CMSSY_API_TOKEN --env CMSSY_WORKSPACE_ID=YOUR_CMSSY_WORKSPACE_ID -- npx -y @cmssy/mcp-server" in your terminal, then type /mcp in Codex to check it.
Built from the published package · server updated 3 days ago
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Run the install command
In a terminal, run:
codex mcp add cmssy --env CMSSY_API_TOKEN=YOUR_CMSSY_API_TOKEN --env CMSSY_WORKSPACE_ID=YOUR_CMSSY_WORKSPACE_ID -- npx -y @cmssy/mcp-server - 2
Check it
Inside Codex, type /mcp to see the server and its tools.
MCP servers run with your permissions. If Cmssy needs an API key, add it under env in the config. Check its README.
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Questions
Does Cmssy work in Codex?
Yes. Codex supports mcp servers in the codex cli and ide extension, and Cmssy installs with the steps above.
Cmssy 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 Cmssy safe?
It scores 82 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.
