API keys & engines
Which engine generates your ads?
Monk generates every ad with Higgsfield. Here are the two ways to connect it.
The engine is the model that turns winning ads into your new creatives. Today Monk generates every ad with Higgsfield. There are two ways to connect it, and you only need one.
| Way to connect | Setup | Best for |
|---|---|---|
| Higgsfield Marketing Studio | One time login, no key | Most brands. Branded product ads, nothing to copy or paste |
| Higgsfield API key | Bring your own Key ID and Key Secret | You already have Higgsfield API keys |
Both run on your own Higgsfield account, so Higgsfield bills you directly.
Which one Monk uses
If you connect Marketing Studio, Monk uses it. Your API key is the fallback when no Marketing Studio account is connected.
- Marketing Studio connected: Monk generates there.
- No Marketing Studio, but a Higgsfield key saved: Monk uses the key.
- Neither: generation fails with a setup message. Connect one first.
Setting up
- Recommended: Connect Higgsfield (Marketing Studio, one time login).
- Or: Get your Higgsfield API key and paste both halves into Monk.
You manage both from Settings in the sidebar. See Settings.
Not available yet
Monk's onboarding wizard may still show other engines. They do not generate ads yet, and picking one means generation will fail. Choose Higgsfield.
- Google Nano Banana Pro: planned, not live. See Get a Google (Gemini) API key for what it will need.
- Monk built-in: planned, not live.
We will update this article the day either one ships.
Related
Last updated 2026-07-13