Security note. Your DataForSEO API password ends up base64-encoded in
~/.codex/config.toml on your machine. Base64 is reversible — anyone with access to that file can recover the password. The installer sets the file to mode
600 so other Mac accounts on the same machine can't read it, but if your laptop is ever lost or shared, revoke and regenerate the API password from the
DataForSEO dashboard. The installer does NOT send your credentials anywhere except to DataForSEO itself for the credential test. No Local Howl server is in the path.