Apache APISIX is an open-source API gateway and AI gateway built on NGINX and etcd. Routes and plugins can be changed dynamically without a restart. APISIX provides load balancing, health checks and circuit breakers, authentication through plugins such as JWT, Key Auth, OpenID Connect and Keycloak, and integrations with observability tools such as Prometheus and OpenTelemetry. Besides HTTP it handles gRPC, WebSocket and MQTT, among others. As an AI gateway it can proxy traffic to LLM providers, with features such as token-based rate limiting. APISIX is software that you run yourself, on bare metal or on Kubernetes.
APISIX is a project of the Apache Software Foundation, a US non-profit corporation headquartered in Delaware, and is licensed under the Apache License 2.0. Because the software is open source and self-hosted, you decide where the gateway runs and which traffic passes through it. A European organisation can therefore deploy APISIX on its own or EU-based infrastructure.