Who's In 2026: From RSVP Tool to Full Event Management Platform

· By Who's In? Team
Who's In 2026: From RSVP Tool to Full Event Management Platform
The evolution story — how a shareable RSVP link became a platform with Stripe payments, automated waitlists, QR check-in scanner, Apple & Google Wallet passes, LinkedIn verified badges, 10-language localisation, WebMCP AI agent tools, recurring events, membership management, and analytics.

About the Author

Who's In? Team

The Who's In? Team builds free event management tools for community organisers, studios, and conference hosts worldwide.

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Frequently Asked Questions

What does "Who's In 2026: From RSVP Tool to Full Event Management Platform" cover?

The evolution story — how a shareable RSVP link became a platform with Stripe payments, automated waitlists, QR check-in scanner, Apple & Google Wallet passes, LinkedIn verified badges, 10-language localisation, WebMCP AI agent tools, recurring events, membership management, and analytics.

How does Who's In? work with AI agents?

Who's In? is the first event platform with full AI agent integration — OAuth 2.0 for ChatGPT, Claude, and Gemini, plus WebMCP tools and a REST API. AI agents can browse events, check availability, and initiate RSVPs on behalf of users.

How do I get started with Who's In?

Sign up for free at whos-in.app, create your first event in under 2 minutes, and share the link via WhatsApp, email, or social media. No app download required for your guests — they RSVP via the mobile-optimised web link.