Deep Research API requests fail with HTTP 403

Gemini API
1

The Deep Research API returns HTTP 403.

I’m using it within an Obsidian plugin (where the Origin header is “obsidian”) using the TypeScript genai interface.

  • generateContent makes requests to “https ://generativelanguage.googleapis.com/v1beta/models/gemini-3-pro-preview:generateContent” (without the space) and it works :white_check_mark:
  • The Interactions API makes requests to “https ://generativelanguage.googleapis.com/v1beta/interactions” (without the space) which fail with “403 Forbidden” :cross_mark:
3

Hi @alltom,

Could you please eloborate on this issue? What are you trying to acheive and also if possible, please share a snippet of code where you are calling the Deep Research Agent.

For reference, The Deep Research agent is exclusively available using the Interactions API. You cannot access it through generate_content. Deep Research Agent

Thank you!

5

My GoogleGenAI instance is named ai and ai.models.generateContent(requestParameters) succeeds while a snippet like this fails with HTTP 403:

const interaction = ai.interactions.create({agent: …, background: true, input: prompt});
await ai.interactions.get(interaction.id);