KrakenD

KrakenD is an open-source, stateless, high-performance API Gateway designed for microservices architectures that provides API aggregation, transformation, security, rate limiting, circuit breaking, and protocol conversion capabilities to simplify client interactions by consolidating multiple backend services into unified endpoints without requiring databases or persistent storage. The platform supports Backend for Frontend (BFF) patterns, handles REST, GraphQL, gRPC, WebSockets, and SOAP protocols, integrates declarative GitOps-based configuration management with CI/CD pipelines, and delivers exceptional performance with linear scalability to efficiently manage high-traffic workloads while reducing infrastructure costs and operational complexity.