Aug 25, 2026

Kaun Katega Taarpati (KKT)

buildwithagora agora conversationalai knotic vobiz

A live, voice-first Hinglish game show you play in a room together. A projector shows the set — a host on one side of a semi-circular desk, three contestants on the other, and a device with five wires and a six-minute countdown between them. Three people scan a QR code, join on their phones, and become the contestants.

"Amitabh bhai" — an original character voiced with Sarvam TTS, running on Agora's Conversational AI Engine — asks Hinglish paheliyan, addresses each player by name, and asks for confirmation before anything irreversible ("Lock kiya jaye?"). Every correct answer cuts one wire. Answer checking is semantic, never string matching.

Stuck? Phone a Friend places a real outbound phone call via Vobiz, and a voice on the other end reads the hint on loop until the lifeline expires. Miss all five wires before the clock runs out and the confetti charge goes off.

The architecture's spine is a custom LLM endpoint: Agora calls our own /api/llm instead of a hosted model, so the server stays the sole authority on the clock, the wire state, and scoring — the model is told the game state every turn and never computes it. Built on Next.js with Agora RTC + ConvoAI (Sarvam ASR/TTS), a Three.js stage, and SSE for live state to phones and the projector.

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