For several AI assistants
Keep your AI assistants from fighting over your money.
One bot books travel. Another watches the budget. They both act in your name, but they want different things. You write the rules. Foyer checks each request against those rules before anything is paid or booked.
No assistant yet?
Test agents speak the same protocol. They are not the product.
For developers
An assistant calls the API with its own key. The account is taken from that key, not from the URL.