Descriptions:
Bart Slodyczka builds a complete appointment confirmation system from scratch using three no-code and AI tools: Claude Code for the front-end portal, Retell AI for the outbound voice agent, and n8n for back-end automation. The project illustrates how small businesses can replace legacy scheduling and call-center software with a modern AI-powered stack — without writing traditional code.
The build begins with a Next.js app scaffolded from Bart’s reusable GitHub template, connected to Supabase for authentication and data persistence. Claude Code and Cursor extend the template into a custom staff portal where users enter a customer’s phone number and appointment details, then click “Submit Call” to trigger an automated outbound call. The video includes a live end-to-end demonstration: Retell AI’s voice agent calls a real phone number, confirms the appointment in natural conversation, and the portal status updates to “confirmed” automatically upon call completion.
The n8n workflow handles orchestration — receiving the webhook from the portal, forwarding appointment details to Retell AI’s API, and writing call results back to Supabase. Bart also configures the Retell AI agent with a structured prompt, validates it in chat simulation mode before going live, and acquires a local-area phone number to reduce call screening by recipients. For teams exploring how to automate customer communication workflows using AI voice agents alongside no-code back-end tooling, this episode serves as a thorough, step-by-step reference build.
📺 Source: Bart Slodyczka · Published January 28, 2026
🏷️ Format: Hands On Build
