Harp Nextcloud May 2026

It communicates with the Docker Engine to create, start, and stop ExApp containers.

(High-performance AppAPI Reverse Proxy) is the modern networking backbone for Nextcloud’s External Apps (ExApps) ecosystem . Introduced as the recommended deployment daemon starting with Nextcloud Hub 32 , HaRP replaces the older Docker Socket Proxy (DSP) to provide better performance, easier remote deployments, and native support for real-time protocols like WebSockets. What is Nextcloud HaRP? harp nextcloud

Unlike the legacy proxy, HaRP enables full end-to-end WebSocket communication, allowing ExApps to feature real-time collaborative editing and live dashboards. It communicates with the Docker Engine to create,

WebSockets in Nextcloud: creating real‑time apps via AppAPI What is Nextcloud HaRP

For most users, especially those using Nextcloud All-in-One (AIO), HaRP is being integrated as the default option.

HaRP uses Fast Reverse Proxy (FRP) tunnels. This means ExApp containers do not need to expose any ports to the host or even be directly reachable by the Nextcloud server.