Azure API Management

Azure API Management (APIM) is a fully managed service that enables organizations to publish, secure, transform, monitor, and scale APIs for internal and external consumers. It acts as a unified gateway in front of any backend (Azure Functions, App Service, Kubernetes, on-premises, or third-party services), providing features like rate limiting, quotas, JWT validation, IP filtering, and policy-based transformations without touching backend code. With built-in developer portals (fully customizable with low-code editors), automatic OpenAPI/Swagger generation, and subscription-key or OAuth 2.0/Managed Identity authentication, APIM is the go-to solution for creating API products, monetizing APIs, and delivering modern API-first experiences.

Key capabilities include multi-region deployment for low latency, advanced caching, WebSocket and GraphQL support, version/set management, real-time analytics via Azure Monitor and Power BI integration, and self-hosted gateways for air-gapped or edge scenarios. Available in Developer, Basic, Standard, and Premium tiers (with Consumption serverless option), Azure API Management integrates seamlessly with Azure AD B2C, Microsoft Entra ID, and Azure Arc, making it ideal for enterprises building microservices architectures, partner ecosystems, or public API programs while maintaining governance, security, and observability at scale in 2025 and beyond.