pysma
Library to interface an SMA Solar devices
Decision gist · record as of 2026-08-14
Yes, if you own an SMA inverter with WebConnect access and need programmatic monitoring. The library is actively maintained, has no known vulnerabilities, low install friction, and integrates well with Home Assistant. Not suitable if your inverter uses Modbus or lacks WebConnect, or if you require Python versions below 3.12.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires Python 3.12 or later; SMA inverter must be accessible via WebConnect on the local network.
- Low friction installation with only two lightweight runtime dependencies (aiohttp and jmespath).
- Actively maintained with recent commits; supports modern Python versions.
License · maintenance · safety
MIT (permissive) — MIT license permits free use, modification, and distribution with minimal restrictions—suitable for both personal and commercial projects.
last release 2026-06-30 (45 days) · last repo commit 2026-08-04 · 65 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 75,369 downloads/mo, #14,722 on PyPI
Alternatives
Verify before relying
pip install pysma
import asyncio
from pysma import SMAConnection
async def main():
async with SMAConnection(host='inverter.local') as conn:
data = await conn.get_values()
print(data)
asyncio.run(main())- Whether the library supports all SMA inverter models or only specific versions.
- Performance characteristics when polling multiple inverters or high-frequency data collection.
- Exact data fields and metrics available through the WebConnect interface.
- Whether daily usage metrics are directly available or require external workarounds.
What it is and what it does
pysma is a Python library that communicates with SMA solar inverters through their WebConnect HTTP interface. It abstracts the WebConnect protocol to let you query real-time power output, cumulative energy, and device status without writing raw HTTP requests. The library is async-first, using aiohttp for non-blocking network calls, and integrates directly with Home Assistant's SMA sensor component for home automation workflows.
The library reads inverter data over HTTP/HTTPS (with optional SSL verification control) and parses responses using jmespath. It's designed for monitoring setups where you have browser access to your SMA device's web interface and want programmatic access to the same data. Note that Modbus is not supported—only WebConnect.
Use it for
- Monitor real-time solar power generation in Home Assistant dashboards.
- Log inverter output to a time-series database for long-term energy analysis.
- Trigger automations based on solar production thresholds.
- Read energy meter data from SMA devices for consumption tracking.
- Build custom monitoring scripts for solar systems.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you own an SMA inverter with WebConnect access and need programmatic monitoring.
The library is actively maintained, has no known vulnerabilities, low install friction, and integrates well with Home Assistant. Not suitable if your inverter uses Modbus or lacks WebConnect, or if you require Python versions below 3.12.
Install
pysma on PyPI
Before you install
Low friction installation with only two lightweight runtime dependencies (aiohttp and jmespath). Actively maintained with recent commits; supports modern Python versions.
Requires Python 3.12 or later; SMA inverter must be accessible via WebConnect on the local network.
License in practice
MIT license permits free use, modification, and distribution with minimal restrictions—suitable for both personal and commercial projects.
Quickstart
pip install pysma
import asyncio
from pysma import SMAConnection
async def main():
async with SMAConnection(host='inverter.local') as conn:
data = await conn.get_values()
print(data)
asyncio.run(main())Verify before relying
- Whether the library supports all SMA inverter models or only specific versions.
- Performance characteristics when polling multiple inverters or high-frequency data collection.
- Exact data fields and metrics available through the WebConnect interface.
- Whether daily usage metrics are directly available or require external workarounds.
Package facts
| License | MIT permissive |
| Python support | Supports the current Python release >=3.12 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 2 packagesaiohttpjmespath |
| Maintenance | Actively maintained 45 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 75,369 / month, #14,722 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Programming Language :: Python :: 3 :: OnlyProgramming Language :: Python :: 3.12Programming Language :: Python :: 3.13Programming Language :: Python :: 3.14 |
Evidence: pysma-1.1.6-py3-none-any.whl
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See also pysmappee · goodwe · pysml · pyenphase · growattServer · huawei-solar · sense-energy · dlms-cosem · systembridgeconnector · NREL-PySAM