Close to native speed
The open62541 C core provides significant performance gains over pure Python implementations.
o6\Python
The professional OPC UA SDK for Python: a simple native API powered by the performance and resilience of open62541.
Install with one command
pip install o6Restarts every two hours if no license key is present.
Python ergonomics. Native OPC UA performance.
Simple Python API
Deep language integration keeps the interface concise without sacrificing OPC UA completeness.
Stability and recovery
Long-term testing and advanced error recovery maximize uptime for industrial applications.
Certification ready
The certified open62541 example server demonstrates protocol completeness and robustness.
Full type hints
Complete type information reduces errors and enables confident large-scale refactoring.
AI and vision integration
Native NumPy array support connects machine data directly to AI and computer-vision workflows.
Licensing Options
AGPL
Open source
For open-source and non-commercial use.
View on GitHubClient
€450 / developer seat
Connect production applications to any OPC UA server.
Request a licenseClient + Server
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Implement complete OPC UA-enabled applications in Python.
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