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Liam Ottley - How to Add Custom GPTs to WhatsApp in Minutes (OpenAI GPTs Tutorial)

Thumbnail of the video “Liam Ottley - How to Add Custom GPTs to WhatsApp in Minutes (OpenAI GPTs Tutorial)”
Community upload. AI output has not been independently verified.
Author: Liam Ottley
Categories: History Education Business
Tags: history, education, business
Views: 2 · Last viewed: 2026-10-15 07:50 UTC

Short Summary

Key Points

  • The speaker frames the goal as moving custom GPTs off the ChatGPT site and onto WhatsApp, which has over 2 billion monthly active users, so clients can use them where they already communicate.
  • The creator says Agentive is free to use and mentions that about a year ago, his earlier video on this process required about four different platforms and took around 20 minutes, which Agentive now reduces to a few clicks.

Details Worth Noting

  • Concrete instructions:
    • Get an OpenAI API key at platform.openai.com. Create a project, go to Dashboard, then API Keys, and create a new key.
    • In OpenAI's settings, go to Billing, add a valid payment method, and buy credits (the speaker suggests $5) to unlock the newest models. Set a monthly spending limit in the limit section.
    • On Agentive, create a new agent and choose your API key and the model; the speaker uses GPT-4o mini.
    • Write the prompt, either by hand or by using the free prompt generator tool (filling in name, context, knowledge, tools, examples, and notes, then clicking run and copying the Markdown output).
    • Create a knowledge base and upload your FAQ document, then test the agent inside Agentive before deploying.
    • In the Deploy tab, click Connect WhatsApp, then set up a Facebook Business Manager (free), create a WhatsApp business account, and enter a phone number.
    • The number cannot be your personal WhatsApp number; use a spare SIM or a friend's number that is not on WhatsApp.
    • Enter the verification code sent to that number, then tick the confirmation box in Agentive and click confirm.
    • Add the number as a contact on your phone and send a test message.
  • The speaker demonstrates a demo bot for a fictional balloon shop, "Bill's Balloon Outlet," answering location questions from the uploaded FAQ.
  • Tools such as order tracking are mentioned as possible additions but were not built in this video.
  • Edit mode creates a new version; use the Publish button to push tested changes to the live WhatsApp agent, and the version history shows model changes, such as moving from GPT-4o mini to GPT-4 Turbo.
  • Use of the OpenAI API incurs usage costs billed by OpenAI; the speaker says it will likely cost just a few dollars a month for testing and playing around.

Bottom Line