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How to install Host Hermes in Codex
To install Host Hermes in Codex, run "codex mcp add host-hermes -- npx -y @metaharness/host-hermes" 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 host-hermes -- npx -y @metaharness/host-hermes - 2
Check it
Inside Codex, type /mcp to see the server and its tools.
MCP servers run with your permissions. If Host Hermes needs an API key, add it under env in the config. Check its README.
Install Host Hermes in another app
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Questions
Does Host Hermes work in Codex?
Yes. Codex supports mcp servers in the codex cli and ide extension, and Host Hermes installs with the steps above.
Host Hermes 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 Host Hermes safe?
It scores 86 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.