Does new interaction API support vertex ai?

[danhnguyen8391]

I tried interaction API with vertex ai but get error 404. For the same code, I try with AI studio API key, it works. Seem like this new API does still not support vertex ai?

[adk-bot]

Response from ADK Answering Agent (experimental, answer may be inaccurate)

TLDR: Yes, the Interaction API supports Vertex AI, but it requires a different configuration than the AI Studio API key. The 404 error you're seeing is likely due to an authentication or configuration issue. Please ensure you have authenticated for Vertex AI and set the correct environment variables.

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Hello! Thanks for your question.

The ADK is designed to work with both the Gemini API (used by AI Studio) and the Vertex AI API. However, they use different authentication and configuration setups, which is likely the cause of the 404 error you are encountering.

Here are the key differences and steps to ensure your environment is set up correctly for Vertex AI:

1. Authentication:

   • AI Studio uses an API key (GOOGLE_API_KEY).
   • Vertex AI uses your Google Cloud user credentials. You must authenticate by running this command in your terminal:

     gcloud auth application-default login

2. Environment Variables: To tell the ADK to use Vertex AI instead of the Gemini API, you must set the following environment variable. [1, 2]

   export GOOGLE_GENAI_USE_VERTEXAI=TRUE

By default, if GOOGLE_GENAI_USE_VERTEXAI is not set or is FALSE, the ADK will attempt to use the Gemini API with an API key. [2, 3]

To resolve the 404 error, please verify that you have:

• Run gcloud auth application-default login successfully.
• Set GOOGLE_GENAI_USE_VERTEXAI to TRUE in your environment.
• Ensured that your Google Cloud project has the Vertex AI API enabled.

Following these steps should correctly configure the ADK to use your Vertex AI setup. Let us know if you continue to experience issues.

[1] https://google.github.io/adk-docs/streaming/dev-guide/part1/
[2] https://google.github.io/adk-docs/agents/config/
[3] https://google.github.io/adk-docs/get-started/quickstart/

[danhnguyen8391]

My vertex ai service account still works well when I use generated content API that means the setup is not a problem. It only does not work when I use interaction API.