Daily's APIs allow developers to configure their domains, rooms, and meeting tokens for building WebRTC video and audio-only apps. Domains represent the top-level object in the Daily API and are associated with multiple accounts, while rooms host video calls and have unique room URLs that include the domain and room name. Meeting tokens provide a way to update session configurations on a per-user basis and override room settings when the same property is set on them. The order of priority for these settings is domains (most general), rooms, and meeting tokens (highest priority). Developers can use the Daily dashboard or REST API to configure these settings and override shared properties in various scenarios, such as turning off prejoin UI or enabling recording for a specific meeting owner.