Gemini API Free Tier Restricted – 403 PERMISSION_DENIED – EchoBird-API – Sep 2026

Hello Gemini API / Google AI Studio Team,

I am requesting a manual review of an unexpected Gemini API access restriction on my Free Tier project.

Project details

  • Project name: EchoBird-API
  • Project ID: echobird-api
  • Intended use: Personal development and testing with the Gemini API
  • Intended tier: Free Tier

Current status in Google AI Studio

  • Project status: Restricted
  • Billing tier: Unavailable
  • AI Studio shows that API access for this project is restricted.

API behavior

Listing models succeeds:

GET /v1beta/openai/models → HTTP 200

The API successfully lists available models, including gemini-3.8-flash.

However, a minimal content-generation request fails with:

HTTP 403 PERMISSION_DENIED

"Your project has been denied access. Please contact support."

I have also confirmed that:

  • The API key is valid.
  • The Google Cloud project exists and is active.
  • The request reaches the Google Gemini API successfully.
  • The issue occurs with content generation rather than model discovery.
  • Phone verification has been completed on my Google Account.
  • 2-Step Verification (2SV) is enabled.

I would like to use the eligible Free Tier and do not want to enable paid billing simply to remove what may be an automated restriction.

Could a member of the Gemini API / Google AI Studio team please manually review the access status of this project and restore Free Tier access if this restriction is a false positive?

I have intentionally not included my API key or other credentials in this public post. I can provide additional project information privately if required.

Thank you for your help.