Build a Custom AI Chatbot for Your Business Using OpenAI’s API – A Step-by-Step Tutorial

1. Define Your Chatbot’s Purpose & Scope

• Identify the specific use case (e.g., customer support, lead qualification, internal FAQ) to shape conversation flow and tone.
• Map out the top 10–15 questions or tasks your chatbot must handle, and group them by intent.
• Decide on boundaries: what the bot should not answer, and how to gracefully hand off to a human.

2. Set Up Your Development Environment & API Access

• Create an OpenAI account, generate an API key, and set up billing (start with a low usage cap to control costs).
• Initialize a new Node.js
  

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  Written byTheo Grant

  Theo Grant explores real-world AI applications, automation workflows, and hands-on tutorials at AI In Action Hub. Theo breaks down complex AI concepts into practical guides that help professionals and creators leverage AI in their daily work.