Build an AI Receptionist That Answers Calls: The Free Open-Source Tool

This is the page from the reel. The tool is Pipecat, an open-source framework from Daily, and the repo is here: github.com/pipecat-ai/pipecat.

What it does

Pipecat is for building voice AI agents. With it a developer can build an agent that picks up phone calls, talks to customers and does tasks such as booking an appointment. It works with phone providers such as Twilio.

The real costs

  • The framework is free and open source.
  • You pay separately for the phone number and call minutes, the speech-to-text and text-to-speech services, and the AI model.
  • The setup is technical. If you are not a developer, hire one. This is not a no-code tool.

How to start

  1. Write down the 10 questions callers ask your business most, with the correct answers.
  2. Decide the one task the agent should complete, such as booking an appointment, and what it should hand over to a person.
  3. Have a developer build a first version from the examples in the repo.
  4. Test it with 20 real calls from friends before any customer hears it.
  5. Start with after-hours calls only, and listen to the recordings every week.

Before you go live

Tell callers at the start that they are speaking to an AI assistant, always give them a way to reach a person, and ask before recording a call. For clinics, never let the agent give medical advice.

Details were checked in early November 2026 and can change. Read the repo for current requirements.

Kevin Singh

Written by Kevin Singh

I help creators and founders save hours with AI. New reels and guides every week on @kevinsingh.me.