Getting introduced to OpenAI’s API, I was not able to find any publicly advertised OpenAPI format, something that can be used to generated client code in any language, and plug in well with things like Postman or Swagger.
I wrote a version to share publically if you are having the same problem! OpenAI OpenAPI
Feel free to use this webpage/document if it helps with your development and debugging! As I am not an actual member of OpenAI, it is possible some of the documentation is incorrect. If you notice anything wrong, feel free to open a PR to fix!