KrakenD High-Performance Stateless API Gateway
KrakenD is an ultra-high performance, stateless, declarative API Gateway written in Go. It helps adopt microservices architecture with content aggregation, rate limiting, security policies, and telemetry integration.
KrakenD is an ultra-high performance, stateless, declarative API Gateway written in Go. It helps adopt microservices architecture with content aggregation, rate limiting, security policies, and telemetry integration.
npx skills add agentskillexchange/skills --skill krakend-high-performance-stateless-api-gateway
KrakenD Community Edition is an open source, high-performance API Gateway designed to help teams effortlessly adopt microservices and secure communications. Written in Go, KrakenD operates as a stateless gateway where every node can function independently in a cluster without coordination or centralized persistence, enabling true linear scalability.
Performance and Resource Efficiency
KrakenD delivers exceptional throughput — over 70,000 requests per second on a single regular-sized instance — while maintaining extremely low memory consumption, typically under 50MB even with 1,000+ concurrent connections. This efficiency translates to fewer machines, smaller machines, and lower infrastructure costs compared to traditional API gateway solutions.
Core Features
The gateway provides comprehensive API lifecycle management through GitOps and declarative JSON configuration. Key capabilities include content aggregation and composition from multiple backend APIs into single responses, format transformation between JSON and XML, response filtering and manipulation, concurrent backend calls for faster content delivery, and multi-layer rate limiting with bursting support at both router and proxy layers.
Security and Authentication
KrakenD implements a zero-trust security policy with built-in support for CORS, OAuth, JWT validation, HSTS, clickjacking protection, HPKP, MIME-sniffing prevention, and XSS protection. SSL and HTTP/2 are supported natively, and the gateway includes circuit breaker patterns and load balancing for resilient backend communication.
Observability and Extensions
The platform integrates with major telemetry systems including Datadog, Zipkin, Jaeger, Prometheus, and Grafana for comprehensive monitoring and dashboarding. KrakenD is extensible through Go plugins, Lua scripts, Martian modifiers, and Google CEL expressions. Deployment is platform-agnostic, working in both cloud-native Kubernetes environments and self-hosted on-premises setups. The official Docker image is available on Docker Hub for instant deployment with a simple docker run command.
Agent Integration
AI agents can use KrakenD to create secure, rate-limited API facades over internal microservices, aggregate data from multiple backends into unified responses, and enforce authentication policies without modifying backend services. The declarative configuration model makes it straightforward to manage gateway rules programmatically.