Who's In? Becomes the First Event Platform with WebMCP Integration
Who's In? now exposes native WebMCP tools via navigator.modelContext — letting Claude, Gemini and ChatGPT agents search events and check availability without scraping. First event platform to implement the W3C draft standard.
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.
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.