Add a model maker's API key and Quorum runs that maker's seats on your account with them.
Add a model maker's API key and Quorum runs the seats that maker supplies on your key. The maker bills you directly.
Add a key
Open Settings -> API keys.
Choose Add key, pick the maker and paste the key.
Save. Quorum checks the key with the maker when you save it.
Settings lists the makers you have keys for. Keys are write-only: to change one, add a new key for the same maker. Remove a key from the same list.
Which makers work
Keys work for these makers: OpenAI, Google, xAI. Choose from them in the Settings picker.
What changes
Seats that run on your key do not count against your plan.
Your key covers seats only; judge and synthesizer run on Quorum's keys. A seat whose maker you have no key for runs on Quorum's keys.
API calls carry a platform fee of 0.5% on your key, applied to what the source billed for the seat. On Quorum's keys it is 5%. The fee applies to API calls only. See Pricing.
The receipt shows it. Each seat records its source, real cost, fee rate and fee. See Reading a receipt.
If your key fails
Fallback is off by default, so a seat whose key fails is skipped. To keep that seat running, turn on If my key fails, use Quorum's sources and bill me in Settings. The seat then runs on Quorum's keys and is billed to you.