Slots

Slots is appointment booking for a business

Core booking

• Service management — services with their own duration, price, buffers, slot length and booking window
• Staff and resource scheduling — assign staff to services, each with their own schedules and location
• Multi-location support — run more than one location, each with its own timezone
• Flexible availability — recurring weekly schedules, one-off windows, breaks, and blackout dates
• Capacity management — group bookings with per-day capacity limits for staff-less services
• Customer booking limits — cap how often one customer may book a service, fixed or rolling
• Customer self-service — cancel, reschedule, change quantity and download an .ics from a signed link with no account, or a built-in account area for logged-in customers
• Multi-site — services are localised and propagate across sites
• Framework-free booking wizard — a zero-dependency, CSP-safe multi-step wizard that auto-selects and skips any step with only one option, so a single-service, single-staff setup is just "pick a time"

Payments

• Stripe, directly. Card details are entered in-page with Stripe Elements — no Craft Commerce, no redirect to a hosted checkout
• Bookings are confirmed by a signature-verified webhook, not by the browser
• Full and partial refunds from the control panel, clamped by a per-service or global refund policy; refunds issued in the Stripe dashboard sync back automatically
• A payment panel on every booking, and a three-field Stripe setup in Settings
• Payments-aware reporting — in direct mode revenue reflects money actually captured, net of refunds
• Free bookings work with no payment configuration at all

Notifications

• Confirmation, reminder, cancellation, reschedule, status-change, quantity-change and owner-alert emails
• Every template overridable in your own templates/, globally or per site
• Confirmation emails carry an .ics calendar attachment
• Queued in the background, so a slow mail server never holds up a booking

Security and anti-spam

• reCAPTCHA v3, hCaptcha, Turnstile, and a honeypot
• Rate limiting per email and per IP, optional IP blocking, and a minimum submission time
• Soft locking — a held slot cannot be claimed by a second customer while the first is still typing
• Optional audit logging

Performance

• Tag-based cache invalidation, batched availability queries, and memoised schedule resolution
• Timezone conversion throughout, so a location's hours mean what they say

For developers

• Bookings are first-class Craft elements — native element index, element actions, exporters, and queryable in Twig like anything else
• A versioned REST API at /slots/api/v1 for custom front ends
• A headless wizard core published as ESM/UMD if you would rather build your own interface
• A comprehensive event system for hooking in custom business logic
• Translated into English, German, French, Spanish, Italian, Japanese, Dutch and Portuguese