GPT Chatbot with API Calling | Real-Time Chatbot

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GPT Chatbots with Function Calling, or API Calling, are a big step forward in chatbot technology. By adding API calls to a GPT chatbot, it can interact in real-time and more dynamically. This means the chatbot can get and show data from other places right away, making it much more useful and versatile. In this blog post, we are going to look at how to set up a GPT chatbot that can do custom API calls. This feature turns your chatbot into a better, smarter chatbot for engaging users and sharing information.

Basics of API Integration in Chatbots

API (Application Programming Interface) integration in chatbots allows the chatbot to access and interact with external data and services. Essentially, it enables the chatbot to extend its capabilities beyond knowledgebase responses, allowing the chatbot to fetch real-time data, interact with other software, and perform dynamic actions based on user requests.

Benefits of API Integration in Chatbots

  1. Enhanced Functionality: APIs enable chatbots to perform a variety of tasks that would otherwise be impossible, such as retrieving data from external databases, performing real-time actions, and interacting with additional digital tools and services.
  2. Personalisation: Through APIs, chatbots can access user-specific data (with permission) and provide personalised responses or recommendations, significantly improving the user experience.
  3. Real-Time Data Access: Chatbots integrated with APIs can provide users with real-time information, such as weather updates, stock prices, or flight statuses, keeping them informed and engaged.
  4. Automation of Tasks: APIs allow chatbots to automate various tasks like booking appointments, sending reminders, or even completing purchases, thereby saving time for both the business and the customer.
  5. Improved Customer Service: By providing accurate, up-to-date information and performing a range of customer service tasks, API-integrated chatbots can greatly enhance customer satisfaction and loyalty.

The Power of Real-Time Data in Chatbots

Integrating API calls into your custom GPT chatbot greatly improves its capabilities, allowing your chatbot to provide users with real-time data, making interactions more informative, relevant, and engaging. Whether it is for customer service, data retrieval, or providing personalised content, the ability to call APIs in real time opens up a world of possibilities. Let us see how we can setup.

Setting Up API Calls in Your Chatbot

Follow the steps below to integrate your custom API with GPT Chatbot:

Accessing the Chatbot Studio

Go to the chatbot dashboard. Here, you will find the Studio section that is your playground for developing and updating chatbot scenarios. In the studio, you can configure your chatbot to execute a range of activities based on user interactions.

Creating a New Scenario

Once in the studio, your first step is to create a new scenario. Scenarios are essentially the backbone of your chatbot’s interaction flow. They define how the chatbot should respond to different user intents. Think of them as the script your chatbot follows during its conversations with users.

Implementing Custom API Calls

  1. Advanced Options: To start making API calls, head over to the advanced section and select API Calls. This action opens up a realm of possibilities, allowing your chatbot to interact with external databases, services, and more.
  2. API Component: Upon selecting API calls, a component will appear on your dashboard. Click on this component to bring up the API Content window.
  3. Configuring API Details: In the API Content window, you must enter your API URL, as well as any headers and parameters that your API requires. This step is important because it defines the exact external resource with which your chatbot will communicate.
  4. Testing the API Response: Before proceeding, it is important to test the API response to confirm that it works properly and that your chatbot can receive the required data. A successful test indicates that your chatbot is ready to use the API in live scenarios.
  5. Capturing and Utilising the Response: Once you have confirmed that the API is responding correctly, you can use the Capture to feature to store the response in FLOW.response. This stored response can then be used in various parts of your chatbot’s conversation flow.
  6. Displaying the Response: Finally, use the Text Component to show the user the API response, which might be anything from real-time weather updates to the most recent stock market trends, or anything else you want to include, depending on the API you have integrated.

Suggested Reading

  1. Improve Customer Satisfaction with AI-powered Chatbots
  2. Custom ChatGPT-Style Chatbot: Personalised AI Interaction
  3. Transforming Customer Support with Powerful GPT Chatbot
  4. Custom ChatGPT-Powered Chatbot: Smarter, Faster, and Better
  5. No-Code GPT Chatbot for Wix Websites

Industry-specific use cases

These are some use cases of real-time chatbots in different industries, which improve customer engagement, assistance, and operational efficiency. Real-time chatbots find applications in a variety of industries, including:

  1. E-commerce:
    • Customer Support: Real-time chatbots can assist customers with product recommendations, order tracking, and issue resolution.
    • Personalised Shopping: Chatbots can engage users in real-time conversations to understand preferences and provide personalised product suggestions.
  2. Finance:
    • Account Management: Real-time chatbots assist users with account inquiries, transaction history, and fund transfers.
    • Financial Advice: Chatbots can provide basic financial advice, investment insights, and updates on market trends in real-time.
  3. Travel and Hospitality:
    • Booking Assistance: Real-time chatbots can help users book flights, hotels, and rental cars, providing immediate confirmation and details.
    • Travel Information: Chatbots offer real-time updates on flight statuses, weather conditions, and travel alerts.
  4. Telecommunications:
    • Customer Service: Real-time chatbots assist with billing inquiries, plan changes, and technical support for mobile or internet services.
    • Troubleshooting: Chatbots can guide users through basic troubleshooting steps for connectivity issues.
  5. Retail:
    • Inventory Check: Real-time chatbots assist customers in checking product availability, sizes, and colours in-store or online.
    • Promotions and Discounts: Chatbots notify customers about real-time promotions, discounts, and special offers.
  6. Automotive:
    • Product Information: Real-time chatbots provide information on vehicle specifications, features, and pricing.
    • Service Scheduling: Customers can use chatbots to schedule vehicle maintenance, get service quotes, and receive real-time updates on repairs.
  7. Education:
    • Course Information: Chatbots provide real-time information on courses, schedules, and enrollment procedures.
    • Study Assistance: Real-time chatbots assist students with queries related to assignments, course materials, and exam schedules.
  8. Human Resources:
    • Onboarding Assistance: Chatbots guide new hires through the onboarding process, assisting with paperwork, introducing company policies, and answering common questions, ensuring a smooth transition into the organization.
    • HR Queries: Employees can use chatbots for real-time assistance with HR-related inquiries, such as leave requests and benefits information.
  9. Manufacturing:
    • Supply Chain Management: Real-time chatbots assist in tracking inventory, order status, and production schedules.
    • Maintenance Support: Chatbots can guide technicians through troubleshooting steps and maintenance procedures in real time.
  10. HealthCare:
    • Appointment Scheduling: Patients can use real-time chatbots to schedule appointments, inquire about medical services, or get information about healthcare facilities.
    • Healthcare Report Access: Chatbots can help patients instantly retrieve and download their medical reports, streamlining access to critical health information and enhancing overall convenience in healthcare interactions.


A GPT chatbot can become much more than just a conversational agent by integrating function calls. This allows the chatbot to provide real-time data and responses, improve the user experience, and add substantial value to the services it can provide. The applications your chatbot can be used for are only limited by your creativity.

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January 22, 2024

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