Gemini 3 is not calling tools

I have an app which uses several AI models, which all connect to my MCP server with custom tolling system (FastMCP). However when using Gemini 3, after one tool call, it seems like my request exists. The issue is that I do not having this problem when using other vendors, or even Gemini 2.5 Flash, so I really don’t explain this behaviour. I am using the streaming API

Hi @EnteryName , Welcome to the AI Forum!!!

Could you please share details about your app, prompts you are using with Gemini 3 and any error logs you are seeing, this will help us pinpoint the issue.

What tool are you calling? I don’t think context url works at all, but search seems to work.