How to install Posthog MCP in Codex

To install Posthog MCP in Codex, run "codex mcp add posthog-mcp -- npx -y @posthog/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 posthog-mcp -- npx -y @posthog/mcp

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

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Does Posthog MCP work in Codex?

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

Posthog 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 Posthog MCP safe?

It scores 88 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.