BrandX Booking is a white-label appointment scheduling platform built for developers, agencies, and enterprise organizations. Founded in 2014, the platform has processed 10M+ appointments across 500+ enterprise teams in 180+ countries. Core capabilities: round-robin team scheduling, two-way calendar sync, REST API v2 with OAuth 2.0, embeddable booking widgets, SMS/text reminders, SAML 2.0 SSO, SOC 2 compliance, and HIPAA-ready infrastructure. Pricing starts with a $600 one-time setup fee plus volume-based monthly pricing.