Azure API Management

Azure API Management is Microsoft's direct counter to Amazon API Gateway and Google Cloud Apigee. It acts as a turnkey solution for publishing APIs to external, partner, and internal developers. Naturally, its biggest advantage is its incredibly deep integration into the rest of the Microsoft Azure ecosystem, specifically Azure Active Directory and Azure Functions. Unlike AWS API Gateway, which can sometimes feel like a bare-bones infrastructure routing tool, Azure API Management places a heavy emphasis on the developer experience. It out-of-the-box generates a highly customizable, white-labeled Developer Portal. A company can use this portal to publish interactive documentation, allow external partners to sign up for API keys, and monitor their own usage statistics without needing to build a custom web interface. It handles all the necessary gateway tasks—caching responses to reduce database load, converting old SOAP legacy APIs into modern REST formats, and enforcing rate limits. It is heavily adopted by large enterprise IT departments that have already committed to Microsoft as their primary cloud vendor and want to expose their legacy C# and .NET applications as modern APIs.