Google Gemini

proxium calls Google Gemini with your own Google Gemini key. Your applications send their requests to proxium with a proxium virtual key. They never hold the Google Gemini key.

Setting	Value
Preset id	gemini
Base URL	https://generativelanguage.googleapis.com/v1beta/openai
How proxium sends the key	an Authorization: Bearer header
Request format	the OpenAI Chat Completions format
Request type	chat

Add Google Gemini to a project

1. Get a key from Google Gemini at aistudio.google.com/apikey.
2. In the console, open Providers and select Add a vendor.
3. In What are you adding, select Google Gemini. proxium fills in the base URL and the models.
4. Paste the key into API key, and select Add Google Gemini.

proxium stores the key encrypted with AES-256-GCM. The console does not show the key again.

Models

A new Google Gemini vendor starts with these models. You can change the list on the Providers screen.

• gemini-2.5-flash
• gemini-2.5-pro

Call a model

A vendor that you add has the provider id t.<project>.gemini, where <project> is the project slug. Send GET /v1/models to get the exact ids that your key can use.

curl https://proxium.tech/v1/chat/completions \
  -H "Authorization: Bearer $PROXIUM_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "t.<project>.gemini/gemini-2.5-flash", "messages": [{"role": "user", "content": "Hello"}]}'

You can also send a tier name, such as trial, in model. proxium then picks the model from the routing policy of the project. Refer to Routing.