How We Built Real-Time Venue Enrichment with Perplexity + You.com — And Why It Matters for Event Discovery
Technical deep-dive: Perplexity sonar-pro and You.com Research API (lite) enrich every in-person event with venue context, attendee tips, and cited…
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Every new in-person event on Who's In is automatically enriched with venue context, attendee tips, and cited source URLs — powered by Perplexity sonar-pro and You.com Research API. Here's how we built it and why the citation flywheel matters.
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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
- Four AI Giants Just Reviewed Our Architecture — Here's What They Said — Gemini, ChatGPT, Claude, and Grok independently reviewed Who's In. Gemini rated it Level 11/11 — 99.9th percentile. Grok called it elite-tie
- How AI Agents Will Discover and Book Events — Structured data, open APIs, agent-friendly documentation, and the discovery ecosystem that enables Claude, Gemini, and ChatGPT to find and s
- RSVP Tools Benchmark — March 2026: Fees, Features & AI Agent Support Compared — Monthly benchmark comparing Who's In, Eventbrite, Partiful, Lu.ma, RSVPify, and Jotform Events on pricing, WhatsApp integration, waitlists,
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