How can I manually create OpenAPI schemas after the GPT Actions editor is disabled?

Using OpenAPI Schemas for GPT Actions

If the built-in schema maker in the GPT Actions editor is no longer available, you can still create and validate your OpenAPI schemas manually. Here are some steps and resources to help you through the process:

1. Follow the Official Getting Started Guide

OpenAI provides documentation specifically on creating and testing OpenAPI schemas with GPT Actions. You can start by reviewing the Getting Started with GPT Actions guide. This guide outlines:

• How to write your OpenAPI schema (the definitions for API endpoints, parameters, etc.)
• Tips on naming and describing your actions so ChatGPT understands which API to call and which parameters to use

2. Use Postman for Testing

Since debugging within ChatGPT can be challenging, it’s recommended to use a third-party tool like Postman to test your API calls. Postman allows you to import your OpenAPI schema and run test requests, which helps identify issues without the overhead of iterating directly in ChatGPT.

3. Leverage the Cookbook Examples

The cookbook contains many examples. Even if you’re not a programmer, you can use these examples as a reference. Compare the schema structures and then modify them according to your specific requirements. The main points to consider are:

• Schema Names and Descriptions: They are critical for ensuring ChatGPT picks the correct API call and parameters.
• Parameter Definitions and Enums: Ensure your schema accurately restricts fields to the intended values, if applicable.

4. Iterative Approach with GPT Assistance

If you’re using ChatGPT to help create your schema but encountering frequent issues:

• Provide clear, step-by-step instructions and context from the official documentation.
• Ask specific questions about individual aspects of the schema rather than a full schema generation at once.
• Validate small parts of your schema individually with Postman before combining them into one complete schema.

5. Additional Documentation Resources

• Creating a GPT Action: After finalizing your schema, refer to the Creating a GPT guide to integrate your schema into a Custom GPT.
• OpenAPI Specification: Although more technical, a basic understanding of the OpenAPI Specification (e.g., Swagger Documentation) may help clarify how the schema should be structured.

By following these steps and utilizing available resources, you should be able to create a working OpenAPI schema for your GPT Action even without the built-in editor tool. Happy building!