| Primary job |
Buyer-facing reserved-seating infrastructure, led by an SDK inside another booking product, with a separate hosted path. |
Collaborative event diagramming and known-attendee planning for planners, venues, and hospitality teams. |
| Who gets placed |
Public buyers choose available inventory during a booking journey. |
Planning teams place named attendees they already know. |
| Venue authoring |
Reusable structured venue geometry with sections, levels, rows, tables, booths, GA, categories, publishing, and embeddable Designer. |
To-scale event-space diagrams, 700+ objects, collaboration, source-plan upload, attendee placement, and venue-planner workflows. |
| Buyer transaction |
Stable JavaScript/TypeScript, React, Vue, and Angular SDKs put selectable seats inside a host-controlled booking flow. |
The reviewed pages document attendee management and Cvent Registration integration, but not Event Diagramming itself as a public transactional seat-picker SDK. |
| Live inventory and holds |
Event-specific free, held, sold, and blocked state shared in real time across authorized buyer and operator surfaces. |
Not presented in the reviewed pages as buyer-purchasable free, held, sold, and blocked inventory. |
| SDK, API, and events |
Four stable web paths, seven server SDK families, and four production mobile SDKs, plus REST/OpenAPI and signed webhooks. |
Deep Cvent ecosystem integration is documented; the reviewed public pages do not present an external transactional seat-picker SDK. |
| Checkout and channels |
Keep checkout in your product, or use SeatLayer's hosted event, Box Office, Control Room, ticket, and door-tool path with organizer-connected Stripe or Razorpay. |
Cvent Registration, OnArrival, and Badges integration can connect planning, registration, assignments, and onsite operations. |
| 3D purpose |
Optional chart-derived interactive buyer 3D adds live selection and venue orientation while the complete 2D path remains available. |
Photorealistic 3D helps planners, venues, and clients visualize and present an event-space design. |
| Entry pricing |
100 free Platform/SDK credits every month, then $50 for 500 confirmed-sold-seat credits at $0.10 each, with no subscription or minimum commitment. |
Planner plans reviewed 5 Sep 2026: Free; Standard $49/month; Pro $150/month; Premium $320/month; Enterprise custom. |
| Unused value |
Purchased credits never expire. If no seats sell, no sold-seat credits are consumed. |
All paid plans have a 12-month commitment. This is a licensed planning plan, not a prepaid seat-credit bucket, so “credit rollover” is not a like-for-like claim. |
| Enterprise and integrations |
Enterprise terms, SDK/API deployment, released sales channels, and embeddable control surfaces are available. |
Enterprise plans, training, advanced features, unlimited plan allowances, and Cvent ecosystem integrations are documented. |
| Best fit |
Platforms and organizers selling selectable live inventory with product ownership or a specialist hosted seating path. |
Planners and venues designing events, assigning known attendees, managing meal details, and presenting room layouts. |
| Deliberate boundary |
No guest-list-to-table assignment, meal or BEO workflow, or photorealistic planning walkthrough. |
Not positioned in the reviewed sources as a specialist external transactional seating engine. |