How Who's In Handles Complex Waitlists and Automatic Promotion
Deep technical dive into the automated waitlist engine: FIFO queue management, concurrent cancellation safety, time-limited acceptance windows, and Stripe…
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Deep technical dive into the automated waitlist engine: FIFO queue management, concurrent cancellation safety, time-limited acceptance windows, and Stripe integration for paid events.
Host your event on Who's In
Who's In Events is free forever — unlimited events, RSVPs, waitlists, recurring events, QR check-in, automated reminders, and Stripe payments at a flat 2.7% on paid tickets (no per-ticket fee, no monthly fee). No signup required for your guests.
See the Events product page or compare against Eventbrite, Luma, Partiful, and Meetup.
Who's In is AI-agent-native
Who's In is the first event platform independently verified 100/100 "Agent-Native" (Level 5) on Cloudflare's Is Your Site Agent-Ready audit. AI assistants — ChatGPT, Claude, Gemini, Grok, Perplexity — can discover events, check availability, and RSVP via first-class Skills over WebMCP and a REST API. See the AI Trust page or read the full 100/100 audit story.
Related reading on Who's In
- Stripe Payment Integration for Event Organisers: A Complete Guide — How Stripe Connect works on Who's In — from 5-minute setup to payout management, refund handling, fee structure comparison, multi-currency s
- How to Charge for Events & Sell Tickets Online (2026 Guide) — Complete organiser guide: how to charge for tickets, take deposits, and collect donations on any event. Flat 2.7% fee, 16+ payment methods (
- Photos, Documents & Organiser Socials — Three New Features, Included on Every Edition — 10-image photo albums, 3-file document downloads, and 8-platform organiser socials. Free on Events; included on Clubs/Studio/Conference at n
Start with Who's In in 90 seconds
Create your first event, club, studio, or conference for free at whos-in.app/signup — no app download, no credit card required. Share a link and your guests RSVP in one tap.