# eclipse-zenoh/zenoh

zenoh unifies data in motion, data in-use, data at rest and computations. It carefully blends traditional pub/sub with geo-distributed storages, queries and computations, while retaining a level of time and space efficiency that is well beyond any of the mainstream stacks.

Repository: https://github.com/eclipse-zenoh/zenoh
Canonical: https://ross.abutalabs.com/products/zenoh
Homepage: https://zenoh.io
Language: Rust
License: NOASSERTION
License Family: other
Topics: networking, protocol, messaging, storage, edge-computing, iot, robotics, embedded, ros2, zenoh, rust, distributed-computing, distributed-storage, distributed-systems, geo-distributed-storages, network-programming, rust-lang
Last push: 2026-08-26T00:06:43+00:00

## Health v2 (maintenance only)
Score: 99/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 98, longevity 100
- inputs: {"age_days": 2416, "days_push": 8, "days_rel": 19, "gap_med": 14.0, "n_releases_24m": 25}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3126, forks 353 (observed 2026-08-28T04:07:44.419385+00:00)

## What it is
Zenoh is a Rust-implemented pub/sub/query protocol and library that unifies data in motion, data at rest, and computations with minimal wire overhead (5 bytes). It includes a router daemon (zenohd), multi-language bindings, and support for geo-distributed storages, queries, and queryables from cloud to microcontroller.

## Use cases
- publish sensor data from embedded devices to the cloud
- build a distributed pub/sub system for robotics
- query geo-distributed data stores transparently
- communicate between ROS 2 nodes over the network
- stream telemetry with minimal bandwidth overhead
- implement RPC between microservices and edge devices
- bridge enterprise and embedded systems with one protocol

## When to choose
- you need pub/sub spanning from microcontrollers to data centers
- you want extremely low wire overhead and latency
- you need location-transparent queries over distributed storages
- you're building ROS 2 or edge computing systems

## When to avoid
- you only need a simple message broker like MQTT or RabbitMQ
- your stack is centered on Kafka-style event streaming
- you need a mature ecosystem with extensive third-party tooling
- you require strict license compliance review (dual EPL/Apache licensing)

## Facets
- artifact type: library
- maturity: active
- function: message-queue, networking, rpc, caching, serialization, middleware
- domain: microservices, iot, robotics, networking, embedded-systems
- platform: rust, python, cross-platform, embedded, windows, cli, self-hosted
- tags: pub-sub, edge-computing, ros2, geo-distributed-storage, query, low-latency, iot-protocol, router-daemon, messaging, real-time, linux, macos

## Member repositories
- eclipse-zenoh/zenoh (main) score 99

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:44.419385+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:26:22.377936+00:00, confidence not recorded.
  - readme: https://github.com/eclipse-zenoh/zenoh (fetched 2026-08-28T04:07:44.419385+00:00, sha 2fc153b55560)
  - homepage: https://zenoh.io (fetched 2026-08-29T09:41:20.177024+00:00, sha f7f470b16b30)
  - site_page: https://zenoh.io/docs/getting-started/first-app (fetched 2026-08-29T09:41:20.185955+00:00, sha 99562e2f1e4a)
  - site_page: https://zenoh.io/docs/overview/what-is-zenoh (fetched 2026-08-29T09:41:20.188033+00:00, sha 2198a0ded262)
  - registry_crates: https://crates.io/api/v1/crates/zenoh (fetched 2026-08-29T09:41:20.190038+00:00, sha 81c8d14abd60)
- Data as of 2026-08-30T08:39:29.467469+00:00.