# Install TextTree for Codex

Canonical URL: https://texttree.ai/en/install/codex/
Markdown URL: https://texttree.ai/en/install/codex.md
Page type: install
Translation status: approved
Legal status: not_required

## Summary

Codex uses a scoped bearer token fallback until native OAuth handoff is available for the configured client.

## Source content

Verify TEXTTREE_BEARER_TOKEN is set only in your local environment.
Regenerate the token from TextTree if the connection shows invalid token.
Run the verification command after adding the server.