Request for manual review — Gemini API 403 project denied access

Gemini API
1

Hello Gemini API Team,

My Google Cloud project is showing: “API access to this project is restricted. Please set up billing to continue.”

When I try to use Gemini through n8n, I receive:
403 PERMISSION_DENIED — Your project has been denied access. Please contact support.

Gemini API is enabled, and I created a new API key through Google AI Studio. I would like to use the Gemini API for learning and development on the Free Tier.

Could you please review the restriction on my project and let me know whether access can be restored without enabling billing?

Thank you.

2

Hello @Victor_Goykeres ,

Getting a 403 API error response and / or seeing “Unavailable” next to your project in AI audio indicates a flag has been placed on your account. To proceed:

  1. If you’re on the free tier with no billing attached, please try the below steps:

  2. Check Model Availability & Rate Limits:

    • Ensure that the model you are requesting is available on your current plan. For example, not all models are available on the free tier. You can verify model availability, quotas, and limits on the AI Studio Rate Limit dashboard.

  3. Ensure you have completed age verification by navigating to Google Account Age Verification and verifying date of birth in Google Account Personal Info.

  4. Complete Phone Verification and turn on 2-Step Verification (2SV) on the Google Account associated with your project.

  5. Once age, phone and 2sv are configured, retry your request or create a new API key in Google AI Studio.

  6. If completing these steps still does not restore access (or if using a model requiring a paid tier), you might want to consider adding prepayment credits directly in Google AI Studio and/ or attaching a Google Cloud Billing account in the Google Cloud Console. Please note this will mean you lose your free tier quota.