codex mcp-server doesn't work on the M4 Mac Mini

Resolved 💬 6 comments Opened Oct 6, 2025 by blackpatton17 Closed Oct 9, 2025

What version of Codex is running?

codex-cli 0.45.0

Which model were you using?

gpt-5-codex

What platform is your computer?

Darwin 25.0.0 arm64 arm

What steps can reproduce the bug?

  1. Install codex via brew install codex
  2. Run npx @modelcontextprotocol/inspector codex mcp-server
  3. Attempt to connect the server via inspector.
  4. Connection failed.

<img width="2342" height="1332" alt="Image" src="https://github.com/user-attachments/assets/bcddaa67-21ff-4f91-a097-fc20733b41a6" />

What is the expected behavior?

A successful connection.

What do you see instead?

Connection Error - Check if your MCP server is running and proxy token is correct

Additional information

_No response_

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