Cale

Cale is an API-first scheduling tool designed to seamlessly fit into your app, making it easy for businesses to offer booking options. It’s built to handle multiple clients or environments (like staging and production) in one account, so you don’t have to juggle separate setups. Cale also gives you full control over API keys—you can create, rotate, or deactivate keys to control client access with ease. For scheduling, it supports advanced iCalendar rules, allowing you to set up detailed recurring schedules that can work for any setup, whether it’s simple weekly shifts or complex, custom cycles.