Apache APISIX is a dynamic, real-time, high-performance open-source API gateway that provides rich traffic management functions such as load balancing, dynamic upstream, canary release, circuit breaking, authentication, and observability. Being built based on NGINX and LuaJIT, Apache APISIX has ultra-high performance with a single-core QPS of up to 23,000 and an average delay of only 0.2 milliseconds. It can solve problems in traditional architecture, and at the same time adapt to the needs of the cloud-native era. As an API gateway, Apache APISIX has a wide range of application scenarios. It can be applied to scenarios such as gateways, Kubernetes Ingress Controller, and service mesh, and can help enterprises quickly and safely process API and microservice traffic. Open-sourced and donated by API7.ai to Apache Software Foundation in 2019, Apache APISIX is now the most active API gateway project on GitHub addressing 1 Trillion+ API calls per day, which is still growing.