One API. Any booking vertical. Build complete management apps — not just booking widgets.
1. Register as developer 2. Create a business
POST /auth/developer/register POST /v1/developer/businesses
↓ ↓
Get your JWT token Get scoped API key + business_id
3. Configure your business 4. Build your app
Resources, services, hours Use the REST API to add booking
settings, deposits to your frontend or platform
5. Webhooks keep you in sync 6. Stripe handles payments
booking.created, confirmed Deposits, captures, refunds
completed, cancelled all automated| Free | Starter | Growth | Scale | |
|---|---|---|---|---|
| Price | €0/mo | €9.99/mo | €29.99/mo | €129/mo |
| Businesses | 1 | 5 | 25 | Unlimited |
| Bookings/mo | 50 | 100/business | 1,000/business | Unlimited |
| Dynamic booking | — | — | — | ✓ |
| Webhooks | 1 endpoint | 3 endpoints | 10 endpoints | Unlimited |
| Google Calendar | — | — | 1 connection | Unlimited |
| Support | Community | Email 48h | Email 24h | Priority |
| Start Free | Start Now | Start Now | Start Now |
Start free. No credit card. Upgrade when you're ready to grow.
Tables as resources, capacity per table. Walk-in waitlist. No-show deposit capture. Full floor management.
Stylists and therapists as resources. Services with duration and price. Buffer time between clients. Deposit per service.
Doctors and rooms as resources. Appointment types. Patient intake notes. Multi-provider scheduling.
Equipment as resources. Multi-hour sessions. Deposit for date-hold. Second shooter booking. Wedding packages.
Visit the developer dashboard to download Claude Code skills and an agent for every vertical — restaurant, spa, hair salon, beauty salon, med spa, clinic, and photographer. Each skill contains resource models, service catalogs, booking flows, and integration code so you can build a complete booking and booking management system for any vertical in less than an hour.
# Check availability in one call
curl "https://api.availengine.com/v1/availability/{business_id}?date=2026-06-15&capacity=2"
# Create a booking
curl -X POST https://api.availengine.com/v1/bookings/ \
-H "Authorization: Bearer avail_live_YOUR_KEY" \
-H "Content-Type: application/json" \
-d '{"business_id":"...","first_name":"Jane","last_name":"Doe",
"phone":"+301234567890","email":"jane@example.com",
"booking_date":"2026-06-15","start_time":"19:00","capacity":4}'Start free. One sandbox business. No credit card. Production when you're ready.