zwave-js-server-python
Python wrapper for zwave-js-server
Decision gist · record as of 2026-08-14
Yes. This is a well-maintained, actively developed library with low install friction, no security issues, and a permissive license. Install it if you need to communicate with a zwave-js-server instance from Python; it is the standard client for that purpose. The only prerequisite is having a zwave-js-server running and accessible over the network.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires a running zwave-js-server instance accessible at the specified WebSocket URL; Python 3.12 or later.
- Low friction: pure Python wheel with only two runtime dependencies (aiohttp and pydantic).
- Actively maintained with a recent release and no known vulnerabilities.
License · maintenance · safety
Apache-2.0 (permissive) — Apache-2.0 permissive license allows commercial and private use with minimal restrictions; suitable for most projects.
last release 2026-07-20 (25 days) · last repo commit 2026-08-10 · 64 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 89,549 downloads/mo, #13,651 on PyPI
Alternatives
Verify before relying
pip install zwave-js-server-python
import asyncio
from zwave_js_server.client import Client
async def main():
client = Client("ws://localhost:3000")
result = await client.async_send_command({"command": "start_listening"})
asyncio.run(main())- Whether the library supports Z-Wave JS versions beyond 1.x or has version compatibility constraints.
- Performance characteristics when managing large numbers of Z-Wave devices or nodes.
- Whether access control features (Schema 48) are required for typical use cases or optional.
What it is and what it does
This is a Python client for zwave-js-server, a separate Z-Wave control daemon. It provides async-first bindings to send commands and receive state updates from Z-Wave devices via WebSocket, structuring the API around Driver, Controller, and Node objects that match the underlying Z-Wave JS architecture. The library is designed for home automation integrations and tools that need to query or control Z-Wave networks remotely.
It depends on aiohttp for WebSocket communication and pydantic for data validation. The library supports Python 3.12 and later, has no known security vulnerabilities, and is actively maintained. It includes helpers for access control operations (credential management) and can be invoked from the command line to inspect server state or version.
Use it for
- Build a home automation dashboard that queries Z-Wave device state and sends control commands.
- Integrate Z-Wave device management into Home Assistant or similar platforms via the zwave-js-server bridge.
- Monitor Z-Wave network health and device status from a remote Python application.
- Automate Z-Wave device control based on external events or schedules in a larger automation system.
- Develop custom Z-Wave access control workflows using the typed access-control API.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes.
This is a well-maintained, actively developed library with low install friction, no security issues, and a permissive license. Install it if you need to communicate with a zwave-js-server instance from Python; it is the standard client for that purpose. The only prerequisite is having a zwave-js-server running and accessible over the network.
Install
zwave-js-server-python on PyPI
Before you install
Low friction: pure Python wheel with only two runtime dependencies (aiohttp and pydantic). Actively maintained with a recent release and no known vulnerabilities.
Requires a running zwave-js-server instance accessible at the specified WebSocket URL; Python 3.12 or later.
License in practice
Apache-2.0 permissive license allows commercial and private use with minimal restrictions; suitable for most projects.
Quickstart
pip install zwave-js-server-python
import asyncio
from zwave_js_server.client import Client
async def main():
client = Client("ws://localhost:3000")
result = await client.async_send_command({"command": "start_listening"})
asyncio.run(main())Verify before relying
- Whether the library supports Z-Wave JS versions beyond 1.x or has version compatibility constraints.
- Performance characteristics when managing large numbers of Z-Wave devices or nodes.
- Whether access control features (Schema 48) are required for typical use cases or optional.
Package facts
| License | Apache-2.0 permissive |
| Python support | Supports the current Python release >=3.12 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 2 packagesaiohttppydantic |
| Maintenance | Actively maintained 25 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 89,549 / month, #13,651 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 4 - BetaIntended Audience :: DevelopersNatural Language :: EnglishProgramming Language :: Python :: 3Programming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14Topic :: Home Automation |
Evidence: zwave_js_server_python-0.73.0-py3-none-any.whl
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