Close — AI Voice Sales Agent for Recruitment Consultancies
Link to open source: https://github.com/swatiaggrawal/close
Close is a real-time voice AI sales agent built on Agora's Conversational AI Engine for Talentbridge Consulting, a staffing and recruitment consultancy. A client calls in with a hiring need, and Close handles the entire qualification conversation end-to-end: understanding role type, headcount, and timeline, tracking changes as the client updates requirements mid-call, quoting tiered pricing with real volume discounts, answering competitor and guarantee questions grounded in real service docs (never invented), handling objections like a real salesperson, and driving toward a booked meeting.
Everything is real, not mocked: leads are written to a live Google Sheet CRM, meetings and confirmation emails go out via Resend, all triggered through Agora's native Custom Tools calling a FastAPI backend directly, with no extra LLM hop in the loop. When a human is needed, legal questions, a frustrated client, a large deal, Close escalates with a full conversation summary so nobody has to repeat themselves.
The project also documents its own engineering journey honestly: a pivot away from a custom LLM adapter that added 12s of latency per turn, a tool-reliability issue found through server-side logging that led to consolidating meeting booking into lead capture, and a live-ops dashboard for watching tool calls happen in real time.
This build was uploaded as a hackathon project
