WSO2 API Manager

WSO2 API Manager, developed by WSO2 (wso2.com), is an open-source, full-lifecycle platform for designing, securing, publishing, and analyzing APIs at scale. It helps organizations expose services as secure, discoverable APIs, streamline developer onboarding, and enforce consistent governance across on-premises, cloud, and hybrid environments.

Key capabilities include:

• API lifecycle management: design, versioning, approvals, and deprecation workflows, with APIs-as-code support and CI/CD integration.
• Broad protocol support: REST, SOAP, GraphQL, and WebSocket APIs with built-in documentation and try-out tools.
• Enterprise-grade security: OAuth 2.0, OpenID Connect, JWT, API keys, role-based access control, and policy enforcement.
• Traffic management: rate limiting, throttling, quotas, and caching to protect backends and ensure predictable performance.
• Developer experience: a self-service developer portal for discovery, subscriptions, keys, and interactive testing.
• Observability and analytics: runtime metrics, usage insights, and alerting to optimize performance and usage.
• Cloud-native deployment: scalable gateway and control plane components that run on VMs or Kubernetes, plus lightweight gateways for edge or microservices use cases.

With its extensible architecture and strong tooling, WSO2 API Manager enables teams to deliver secure, high-performing APIs faster while maintaining consistent standards, governance, and visibility across the API ecosystem.