Momentus Technologies Venue Management API
Momentus Technologies (formerly Ungerboeck) venue and event management REST API for convention centers, arenas, stadiums, universities, and performing arts venues to manage events, bookings, catering, and operations end-to-end. Enables AI agents to manage venue space booking and availability for event scheduling automation, handle event planning workflow and task management for event operations automation, access catering and food service order management for venue F&B automation, retrieve exhibitor and show management for trade show and convention automation, manage contractor and vendor coordination for event production automation, handle financial management and billing for event revenue automation, access attendance and credential management for event access control automation, retrieve room turnover and setup configuration for venue operations automation, manage multi-venue portfolio scheduling for venue group operations automation, and integrate Momentus with venue technology ecosystem (ticketing, AV, catering, parking) for end-to-end venue operations management.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
Venue management. SOC2. OAuth2. US/EU. Event, catering, exhibitor, and financial data.
⚡ Reliability
Best When
A convention center, arena, performing arts venue, or university event services operation wanting AI agents to automate event space booking, catering orders, exhibitor management, contractor coordination, and venue financial reporting within Momentus's comprehensive venue management platform.
Avoid When
LIQUOR LICENSE COMPLIANCE FOR AUTOMATED CATERING: Automated catering and bar service orders via Momentus for venues holding liquor licenses must comply with dram shop liability requirements; automated open bar authorization without consumption monitoring creates liquor liability exposure; venue state liquor laws restrict automated per-event service authorization without licensed manager oversight. ADA ACCESSIBLE SPACE ALLOCATION IN AUTOMATED BOOKING: Automated event space assignment via Momentus must ensure ADA-compliant space assignment for events requiring wheelchair accessibility; automated space assignment algorithm that assigns non-accessible space to events requiring accessibility creates ADA Title III violation. UNION LABOR JURISDICTION FOR VENUE OPERATIONS: Many convention centers and arenas operate under IATSE, Teamsters, or UNITE HERE collective bargaining agreements; automated work order generation via Momentus for union venues must respect labor jurisdiction boundaries; automated assignment of union-jurisdictional work to non-union contractors creates CBA violation and potential work stoppage.
Use Cases
- • Booking event spaces from venue scheduling automation agents
- • Managing catering orders from convention center F&B agents
- • Coordinating exhibitors from trade show management agents
- • Tracking event finances from venue revenue automation agents
Not For
- • Small event venues and meeting rooms (use EMS Software or Delphi)
- • Wedding and social event planning (use Honeybook or Planning Pod)
- • Stadium ticketing and fan experience (use Ticketmaster or SeatGeek)
Interface
Authentication
Momentus Technologies uses OAuth 2.0 and API key authentication. REST API with JSON. Chicago, Illinois HQ. Rebranded from Ungerboeck Software in 2022. Founded 1985 in St. Louis. Private (Accel-KKR). Market-leading venue management software for convention centers, arenas, stadiums, and universities. Competes with Delphi by Amadeus, Tripleseat, and EMS Software for venue and event management.
Pricing
Chicago IL. Accel-KKR portfolio. Annual enterprise subscription. Venue-size-based pricing. No free tier.
Agent Metadata
Known Gotchas
- ⚠ UNGERBOECK TO MOMENTUS REBRANDING API MIGRATION: Ungerboeck rebranded as Momentus Technologies in 2022; developer documentation and API endpoints may reference both Ungerboeck and Momentus branding during transition; verify current API base URL and authentication endpoint before building new integrations to avoid using deprecated Ungerboeck API paths
- ⚠ EVENT SPACE HOLD vs CONFIRMED BOOKING STATUS DISTINCTION: Momentus booking system has tentative hold and confirmed booking status levels; automated space assignment workflows must respect hold expiration; automated booking confirmation of held space after hold expiration creates double-booking if another booking was confirmed during the interval; implement hold status check before automated confirmation
- ⚠ CATERING MENU ITEM AVAILABILITY BY EVENT DATE: Momentus catering management has seasonal and event-type-specific menu availability; automated catering order creation must verify menu item availability for the specific event date and type; automated catering order with unavailable menu items creates confirmed order with items that cannot be fulfilled at event
- ⚠ EXHIBITOR PORTAL INTEGRATION FOR SHOW MANAGEMENT: Momentus exhibitor management module has separate exhibitor portal for self-service exhibitor ordering; automated show management workflows should distinguish between venue-side API operations and exhibitor portal operations; automated exhibitor assignment via venue-side API does not automatically provision exhibitor portal access for self-service ordering
- ⚠ FINANCIAL ACCOUNT INTEGRATION VENUE-SIDE REVENUE RECOGNITION: Momentus financial management includes revenue posting by event date; automated financial reporting must align revenue recognition with event completion date, not booking date; automated financial report using booking creation date instead of event date creates premature revenue recognition in venue financial statements
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Scores are editorial opinions as of 2026-03-07.