Build Custom GPT Actions with Your Own API - Step-by-Step Guide

👨‍💻 Dive into the world of custom GPT APIs with this comprehensive tutorial! If you've been searching for a clear, beginner-friendly guide to creating your own GPT API from scratch, you've hit the jackpot.

🌟 In this video, I take you through the exciting journey of setting up your own API using FastAPI, specially designed for custom GPT actions. Whether you're a novice or have some experience, this tutorial is tailored to make the process easy, fun, and highly informative.

🔥 What you'll learn:
FastAPI Basics: Understand the essentials of FastAPI and its role in building custom GPT actions.
GPT Action Builder: Explore how to leverage the GPT Action Builder for effective API integration.
API Configuration: Master the art of configuring your API for optimal performance with GPT.
Environment Setup: Get hands-on with setting up a Python virtual environment in Ubuntu and installing key libraries.
Coding Insights: Delve into the critical aspects of the code, focusing on URL setups, Pydantic classes, and API endpoints.
Testing with Postman: Learn how to use Postman to test your API for reliability and efficiency.
🎯 By the end of this tutorial, you'll not only have a solid foundational understanding of custom GPT APIs but also the skills to apply this knowledge to various projects, such as integrating weather data or other AI tools.

🔗 Useful Links & Resources:
👍 If you find this tutorial helpful, don't forget to like, subscribe, and share! Your support helps us create more content like this.
🐦 Follow us on Twitter @cybrixai for updates and more tech insights.
💬 Got questions or feedback? Leave a comment below, and let's start a conversation!

[NicholasOsto]

Great Video! I've used a very similar workflow when working with GPT. I really like how you explain the background details on why things work and let us know what common errors to expect. Hope you make more videos!

[AndreasLepsuch]

very good video I have a question, do you have a solution to the problem that you have to confirm every action, I have a GPT that executes requests on my database via a PHP script and unfortunately I have to confirm the action every time. Is there one Possibility to bypass this confirmation?

[brianmorin]

Awesome detailed video. I tried following along and used your GPT action builder with a slight tweak to make it retrieve a 114KB JSON file through a webhook to my local machine. While a small JSON file returns successfully, GPT says the "response is too large" when trying to retrieve the 114KB file. Have you run into any of these size limitations by chance?? I can drag-and-drop the same size file in the prompt no problem - just not through the API

[BigKIdeas]

Very hard to read red on black and background music too loud. For future videos… gr8 content.

[lostfsoul]

Great video, + sub, good luck with your YouTube journey mate !

[bennguyen]

If you create a Custom GPT application using OpenAI's GPT builder.. does their Store/Marketplace allow you to host it for others to try? Can you host it somewhere else if they reject it? An your cost is that, anyone using will go towards your 40 messages/3hour limit?

As an alternative, if you create a web-app that does the same, it falls under the API pricing.. so the more popular it gets, the more it costs you?

In either case, how does the pricing change between a prompt that requires a simple yes/no, versus a one that requires image analysis?

My goal is to drag a pdf of a handwritten scan to a web-app (hosted locally or on OpenAI) that calls Chat-GPT4 Vision to do an OCR and extract data from a table, then perform some calculations on it, and finally print the results to a pdf (or append a new page to the original pdf).

[janwibhattar]

which IDE are you using? can you please specify it?

[swonyfd]

It says im subscriber 196. But since you probably subscribed to your own channel, I'll identify as 195

[jinpenglv]

I have no idea what I am watching except a black screen :)

[crimez]

i have to say, that i dont like the video, sorry. Thats no hate but everyone who has zero experience with coding understands nothing. I want my gpt to access photos in a dropbox folder. I created the api key from dropbox and have no idea how to continue. I have no documentation url or anything. I have no idea how to do it and how to write the schema. Aswell as every other video i watched, this video helps me not at all. But maybe you can help with the issue and make a beginner friendly video