Cal is a customizable scheduling platform that lets people and businesses set availability, accept bookings, and manage meetings through a single link. It supports video, phone, and in‑person options and integrates with calendars and apps. What sets Cal apart is its developer‑friendly API and React components that enable teams to embed scheduling into their own sites, automate reminders, and handle payments. It also offers AI‑powered call scheduling and extensive workflow automation for larger organizations.