The Easiest Way to Integrate a Custom ChatGPT into WhatsApp (No Code)
- Karthik Manjunath
- Jul 16
- 2 min read
If you're a business owner, creator, or just curious about AI, you’ve probably asked: “Can I connect custom ChatGPT to WhatsApp without writing a single line of code?”
The answer is: Yes, you can.
With Mercuri, it’s now possible to create your very own AI Agent on WhatsApp — powered by ChatGPT — without any technical skills.
In this guide, we’ll walk you through how it works and how you can set it up in minutes.
Why Integrate Custom ChatGPT to WhatsApp?
If you have an idea you’d like to bring to life on WhatsApp — whether it’s for fun, utility, or your business — this is for you.
Maybe your idea is to help:
Help travelers find the best restaurants in a new city while they are traveling.
Share real-time sports updates or trivia during the season
Create an interactive quiz, journal, or guided experience
Build a local info assistant or daily wellness tip bot
Or perhaps you're a small business and you’re tired of answering the same questions over and over again — things like:
“What are your business hours?”
“Do you ship internationally?”
“How do I book an appointment?”
That’s where connecting ChatGPT to WhatsApp comes in. It lets you automate conversations, deliver real value, and respond 24/7 — all without writing code.
What You’ll Need (Don’t Worry — No Coding)
To get started, here’s what you need:
A WhatsApp Business number (can be new or existing)
A registered business
A Mercuri account (this is what powers the Agent setup)
Step-by-Step: How to Connect ChatGPT to WhatsApp
Step 1: Sign up on Mercuri
Go to Mercuri.cx and create a free account. Mercuri helps you build AI-powered WhatsApp agents easily.
Step 2: Set up your WhatsApp Business number
During onboarding, Mercuri will guide you through connecting your WhatsApp number to the Meta Business API. This step is required to send and receive messages through WhatsApp officially.
⚡ Don’t have a number? Mercuri can help you get one — fast.
Step 3: Integrate & Personalise Custom ChatGPT into WhatsApp
Now that your WhatsApp Business number is set up, it's time to integrate custom ChatGPT on your number. In Mercuri, go to the AI Agent section and start prompting.
Think about the core idea behind your AI Agent on WhatsApp. Are you helping people discover restaurants? Running a quiz? Answering customer support questions?
Once you’ve added your prompt, saved and activated your agent, and you have connected ChatGPT to WhatsApp.
Ready to Launch Your AI Agent?
If you've been waiting to bring AI to your WhatsApp conversations, now is the time to integrate a Custom GPT into WhatsApp.
You don’t need to hire a developer. You don’t need to learn how to code. You just need to get started with Mercuri
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