Gemini API 403 PERMISSION_DENIED: "Your project has been denied access" via @google/genai SDK

Gemini API
, ,
1

I am experiencing a persistent 403 error when trying to make API calls to Gemini models (specifically gemini-2.5-flash)

Observed Error Message:

JSON

{
  "error": {
    "code": 403,
    "message": "Your project has been denied access. Please contact support.",
    "status": "PERMISSION_DENIED"
  }
}

Troubleshooting Already Completed:

  1. Age Verification: My Google Account is fully verified as 18 or older (Verified 18 or older status in Google Account settings).

  2. API Status: The “Generative Language API” is explicitly enabled in the Google Cloud Console.

To protect my account privacy in this public tracker, I have omitted the specific Project ID and API Key from this description. I am more than happy to provide the exact Project ID as soon as a support agent responds or moves this thread to a private channel.

Thank you very much for your time, understanding, and help in resolving this matter.

Best regards,

Piotr