400 FAILED_PRECONDITION: User location not supported (Singapore-based, CLI works but SDK fails)

Gemini API
,
1

I am experiencing a 400 FAILED_PRECONDITION error while using the google-genai Python SDK, despite being located in Singapore (a supported region). Interestingly, the gemini-cli tool works perfectly fine on the same machine/network, but the SDK consistently fails with the “location not supported” error.

Error Message:
google.genai.errors.ClientError: 400 FAILED_PRECONDITION.
{‘error’: {‘code’: 400, ‘message’: ‘User location is not supported for the API use.’, ‘status’: ‘FAILED_PRECONDITION’}}

Environment & Setup:

  • Location: Singapore (Local ISP)

  • SDK: adk, version 1.27.0

  • Model: gemini-3-flash-preview

  • CLI Status: gemini-cli works as expected with the same google account.