codex-acp authentication done via ~/.codex/auth.json isn't working. Codex CLI works fine

[bidhovbizar]

CODEX CLI works

Additionally, I found out that codex-acp authentication is still pending. Even though codex have authenticated it.
(venv) bbizar@automationvm-59:~$ echo '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"1.0.0","capabilities":{}}}' | codex-acp
{"jsonrpc":"2.0","id":1,"result":{"protocolVersion":1,"agentCapabilities":{"loadSession":false,"promptCapabilities":{"image":true,"audio":false,"embeddedContext":true},"mcpCapabilities":{"http":true,"sse":false},"sessionCapabilities":{}},"authMethods":[{"id":"chatgpt","name":"Login with ChatGPT","description":"Use your ChatGPT login with Codex CLI (requires a paid ChatGPT subscription)"},{"id":"codex-api-key","name":"Use CODEX_API_KEY","description":"Requires setting the CODEX_API_KEY environment variable."},{"id":"openai-api-key","name":"Use OPENAI_API_KEY","description":"Requires setting the OPENAI_API_KEY environment variable."}],"agentInfo":{"name":"codex-acp","title":"Codex","version":"0.7.4"}}}

I have codex home in path too

[jneidel]

My data point: Both codex CLI and codex-acp work for me. Signed in through codex cli. Used codex-acp through emacs agent-shell without problem.

My ~/.codex/auth.json contains:

{
  "OPENAI_API_KEY": null,
  "tokens": {
    "id_token": "...",
    "access_token": "...",
    "account_id": "..."
  },
  "last_refresh": "2026-01-16T06:41:46.690710463Z"
}

[bidhovbizar]

@jneidel Do you know what are the places where codex-acp looks for authentication other than auth.json? Did you sign in to codex CLI from the terminal or did you copy it from some other place and placed it in your $CODEX_HOME?

[jneidel]

@bidhovbizar I signed in via codex cli, moved nothing. Later I created a custom $CODEX_HOME and everything still works.