#ZeroCon25 WhatsApp Infobot
24/7 AI helpdesk via WhatsApp for 1,000+ conference attendees from 90+ countries.
CLIENT
Zero Project / Essl Foundation
TIMELINE
February – March 2025
TECH STACK
WhatsApp API, AI Agents, RAG, Qdrant
ROLE
Project Lead
The Challenge
The Zero Project Conference 2025 brought together over 1,000 participants from 90+ countries at the United Nations Office in Vienna. Three days. 120+ sessions. Multiple languages. Accessibility needs ranging from wheelchair support to sign language interpretation.
Attendees needed instant answers – directions to session rooms, agenda changes, transport information, accessibility support.
The Zero Project needed a solution that worked on a platform attendees already had, required no app download, and could handle queries 24/7 in multiple languages.
The Solution
We built an AI-powered helpdesk that runs entirely through WhatsApp. Attendees scan a QR code, open a chat, and ask questions in natural language – text or voice, in their preferred language.
The bot was trained on all conference data: the full agenda with 120+ sessions, speaker information, floor maps, accessibility features, transport directions, and FAQs. When someone asked “What AI sessions are on Friday?” or “Where can I find water?”, the bot provided accurate, contextual answers instantly.
Behind the scenes: AI agents powered by vector-based RAG (Qdrant) for accurate retrieval, Meta Business API for WhatsApp integration, and a GDPR-compliant dashboard (SeaTable) giving the Zero Project team real-time visibility into conversations.
The Results
The WhatsApp Infobot operated throughout #ZeroCon25 (March 5-7, 2025), providing instant support to attendees from 90+ countries at the United Nations Office in Vienna.
— Prof. Dr. Michael Fembek, CEO of the Zero Project
Technology Used
- WhatsApp: Familiar app requiring no app download – instant adoption
- AI Agents: Natural language understanding for text and voice queries in 50+ languages
- Vector-based RAG (Qdrant): Accurate retrieval from conference knowledge base
- Meta Business API: Reliable message delivery and media support
- SeaTable Dashboard: GDPR-compliant real-time monitoring for the client
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“We were particularly impressed with how the AI Helpdesk addressed accessibility at #ZeroCon25. Providing instant information through a familiar platform like WhatsApp made a real difference in ensuring everyone could fully participate and benefit from the event. This technology is a valuable asset that will also benefit future Zero Project events and activities.”