Take advantage of API key authentication to control the access of applications and services to your Web APIs in ASP.NET Core. There are several ways to secure your APIs in ASP.NET Core 7.

Let’s choose OpenAI. I’ll enter my API key and start playing. It’s already generating responses about what Postman does—probably better than I explained it! You can view token usage ...

“With BYOK Encryption and Spec Hub, Postman is redefining ... request and response types—enabling smarter authoring, stronger validation, and seamless sync with your API specs.