How to Connect the Three AIs — and Why Gemini Is Blocked Right Now
A few days ago, someone left this on DooMate:
"I can't figure out how to connect the Google Gemini API. On the blog I see Doo Table where Claude, Gemini, and the user collaborate in one chat — but I can't connect it, so I can't even try what the blog is showing."
Fair point. The "three AIs working together" screen you saw is a real feature. But the three connect in different ways, and they're in different states right now — so let me lay it out honestly.
Claude — nothing to set up
Claude Code is built into myDoo. No extension to install, no login, no key — there's nothing for you to set up. Open myDoo and Claude is already working in Doo Table. myDoo runs perfectly well on Claude alone; Codex and Gemini are extensions you add on top, not an entry fee.
Codex — install it from the marketplace
You install Codex from the extension marketplace inside myDoo. Once installed, it connects with your own OpenAI (ChatGPT) account and works alongside Claude. Good for code generation and repetitive tasks.
(How much you can use depends on your plan — free is very short per turn, while the $20/mo ChatGPT Plus is plenty and stable. But that's a detail for after you install; the first step is simply installing it from the marketplace.)
Gemini — it installs, but it won't turn on
This is the wall the reader hit. Gemini is in the marketplace too, so installing it works. The problem is what comes next.
Since mid-June 2026 (around the 18th–19th), Google stopped allowing Gemini to be used with personal/free accounts. In VS Code-family extensions, only the enterprise (paid) tier remains. It used to connect fine with a personal Google account — we used it that way too — but now, after you install it and try to log in, you get a "personal users are no longer supported" notice and the connection drops. This isn't myDoo's doing; it's a Google policy change.
There's still the route of plugging in an API key from Google AI Studio directly, but we're not sure it works reliably yet, so we're cautious about recommending it.
If you really need Gemini, for now we'd suggest following Google's own guidance and using their new tool, Antigravity. Google is steering personal users there, so Gemini connectivity inside VS Code-family editors will likely stay rough until Google's policy settles.
In short
For now, Claude (built in) + Codex (installed from the marketplace) gives you stable collaboration in Doo Table. For Gemini, you can wait until Google's policy loosens, or run Antigravity alongside.
When Gemini connectivity stabilizes again, we'll update this post honestly. And thanks for the message — that frustration of not being able to even try what you saw on the blog: we hear you.
Related: Getting Started with AI Conference — how to bring the three AIs into one place