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Eduard van Valkenburg 90a633967c Python: Fix Gemini client support for Gemini API and Vertex AI (#5258)
* Add Gemini and Vertex AI client support

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Address Gemini PR review feedback

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* removed sample run readme part

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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Evan Mattson <35585003+moonbox3@users.noreply.github.com>
2026-04-16 19:38:50 +00:00

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# Get Started with Microsoft Agent Framework Gemini
Install the provider package:
```bash
pip install agent-framework-gemini --pre
```
## Gemini Integration
The Gemini integration enables Microsoft Agent Framework applications to call Google Gemini models with familiar chat abstractions, including streaming, tool/function calling, and structured output.
## Authentication
The connector supports both `google-genai` authentication modes.
### Gemini Developer API
Obtain an API key from [Google AI Studio](https://aistudio.google.com/apikey) and set either the package-prefixed or SDK-standard environment variable:
```bash
export GEMINI_API_KEY="your-api-key"
# or: export GOOGLE_API_KEY="your-api-key"
export GEMINI_MODEL="gemini-2.5-flash-lite"
# or: export GOOGLE_MODEL="gemini-2.5-flash-lite"
```
### Vertex AI
Set the standard Vertex AI environment variables used by `google-genai`:
```bash
export GOOGLE_GENAI_USE_VERTEXAI=true
export GOOGLE_CLOUD_PROJECT="your-project-id"
export GOOGLE_CLOUD_LOCATION="global"
export GOOGLE_MODEL="gemini-2.5-flash-lite"
```
## Examples
See the [Google Gemini samples](samples/) for runnable end-to-end scripts covering:
- Basic agent with tool calling and streaming
- Extended thinking with `ThinkingConfig`
- Google Search grounding
- Google Maps grounding
- Built-in code execution