Add a custom connector in Gemini
Gemini calls a custom connector a custom app. You add it on gemini.google.com. These steps use Humble as the example.
You need the tool’s address
Each tool gives you its own connector address. It starts with https://. On gemini.google.com. For Humble, the address is:
https://my.humbleai.com/mcpGoogle offers custom apps in Gemini only in some countries, such as the US. You need a personal Google account and a Google AI Pro or Ultra plan. It is not available in the UK or the EU yet. If you do not see Custom apps, use Claude or ChatGPT for now.
Add it in Gemini
Step 1: Open Connected Apps
In Gemini, open Settings, then Connected Apps.
Step 2: Add a custom app
Under Custom apps, select Add a custom app.
Step 3: Paste the address
Paste the tool’s address. For Humble, that is:
https://my.humbleai.com/mcpLeave the client ID and secret empty.Step 4: Sign in and select Allow
Sign in to the tool and select Allow. Some tools call it an unverified app, because they cannot check who made it. That is expected.
Steps last checked on 12 November 2026. Your app may look a little different.
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