My Voice AI Agent Negotiated 800+ Business Deals in 1 Day (FULL Tutorial)

Synopsis

Tony Ge built 'Lowballer9000' — a VAPI + Gemini 2.0 Flash + Cartesia voice + Twilio + Airtable voice agent that called 800+ luxury watch resellers to negotiate prices on a $35K Rolex Daytona, surfacing $19K buy / $22K sell arbitrage ($3K per watch). Walks through prompt engineering, FCC/STIR-SHAKEN issues, voice choice and integration patterns.

Ideas in this episode

• Voice agent SaaS (Vapi-style)

  Tony Ge's Lowballer9000 shows how a VAPI, Gemini, Cartesia, Twilio and Airtable voice agent can call hundreds of sellers, negotiate prices and surface arbitrage opportunities.

• AI dispatcher for service businesses

  Tony Ge demonstrates a VAPI, Gemini, Cartesia, Twilio, and Airtable agent that called 800+ resellers and found a possible $3K Rolex arbitrage.