ReserveKit
Universal booking API that powers reservations for any schedulable resource - one integration, infinite use cases from yoga studios to yacht rentals
The Problem
Businesses with bookable resources (fitness studios, equipment rentals, hotels, coworking spaces, boat charters, photography studios, meeting rooms) either build custom booking systems for $50K-200K or pay $200-500/month for rigid industry-specific software. Switching industries or adding new booking models requires starting over. Developers waste months building the same calendar logic. No universal solution handles hourly slots, daily rentals, recurring memberships, and hybrid models in one system.
The Solution
White-label booking infrastructure with flexible resource modeling - define anything as bookable (yoga class capacity of 20, conference room for 2-hour blocks, hotel room for nightly stays, equipment for daily rental). REST API handles availability checking, reservation creation with conflict prevention, payment processing, cancellations with configurable policies, and customer management. Businesses integrate once via API or drop-in widget, then use for any booking scenario. Removes 3-6 months of development time.
MVP Features
Resource definition API (create any bookable entity with attributes: capacity, duration, pricing)
Flexible scheduling modes (time slots, date ranges, recurring schedules, multi-day blocks)
Real-time availability checking with timezone support
Booking creation endpoint with automatic conflict detection
Payment processing integration (Stripe) with deposits and full payments
Cancellation handling with configurable refund policies (full refund before X hours, 50% after, etc.)
Customer database with booking history
Webhook notifications for booking events (created, cancelled, upcoming reminders)
Embeddable booking widget (JavaScript snippet) with customizable styling
Admin dashboard for managing resources, bookings, and customers
Waitlist functionality when fully booked
Multi-resource booking (book room + equipment simultaneously)
Recurring booking support (weekly yoga class membership)
Buffer time configuration (15-min cleanup between bookings)
Email and SMS confirmations and reminders
Calendar integration exports (iCal, Google Calendar sync)
Monetization
Hybrid model: $99/month base + $0.50 per confirmed booking (100 bookings/month = $149 total) OR 2.5% transaction fee on booking value, whichever is higher. Volume discounts: 1000+ bookings/month drops to $0.30/booking. Enterprise tier at $999/month for white-label, custom domains, and SLA. Target 80 customers averaging $250/month = $240K ARR Year 1, growing as booking volumes increase.