Descriptions:
Stephanie Nyarko builds a complete inbound voice agent for service businesses in under 20 minutes, using four tools: n8n for workflow orchestration and calendar booking, ElevenLabs for voice synthesis (with optional custom voice cloning), Claude via API for conversation logic and lead qualification, and Twilio for the phone number layer. The finished system answers every inbound call, qualifies leads against predefined criteria — budget, timeline, and decision-making authority — books a discovery call directly into a calendar, fires off SMS and email confirmations, and logs every conversation to Google Sheets, all without human involvement.
The architecture is built around three n8n workflows: qualify lead, book call, and log conversation. Nyarko shares the exact prompt she used to generate all three n8n workflow JSON files via Claude, then walks through each node in detail — including a custom code node that standardizes ElevenLabs’ time format output before it reaches the calendar booking step. A live demo shows a caller booking an April 29th appointment at 7:00am ET, with the calendar entry and confirmation messages appearing in real time.
The economic framing is concrete: the full stack costs approximately $100/month in API calls versus $2,000–$4,000/month for a human virtual assistant, while running 24/7 without coverage gaps. Service businesses that miss an estimated 30% or more of inbound leads are the primary target. The complete prompt templates and n8n workflow files are available through Nyarko’s paid membership community.
📺 Source: Stephanie Nyarko · Published April 29, 2026
🏷️ Format: Hands On Build
