With the release of BioStar X, Suprema introduced a significantly updated license policy compared to BioStar 2.
BioStar X introduced new optional licenses that enable advanced features.
Since the release of BioStar X, there has been a lot of confusion around the Event Log API license.
This article explains what this license is for, how it differs from general BioStar X APIs, and when it is required.
Summary & Key Takeaways
All existing APIs remain free to use, just like in BioStar 2
The Event Log API license is required only for the new feature that allows inserting event logs directly into BioStar X server
This license is NOT related to retrieving or searching event logs
If you want to import access or punch events from external systems, you must purchase this license
No license is required for general BioStar X API usage
BioStar X API Licensing Overview
In BioStar X:
No license is required for general BioStar X API usage.
All existing APIs are free to use, just like in BioStar 2
Additional licenses can be purchased independently, depending on the feature set required.
One such optional license is the Event Log API license.

Screenshot from BioStar X Main Doc Page: BioStar X License Info
What Is the Event Log API License?
The Event Log API license enables one specific new capability in BioStar X:
Inserting event logs directly into the BioStar X system via API
This feature allows external systems to send and store access or punch events inside BioStar X without relying on physical devices or direct database integration.
What This Enables
External applications can generate access or attendance events.
Events are stored in BioStar X and behave like native logs.
Centralized logging and reporting across multiple systems becomes possible.
For more information on how to use this feature via API, please refer to the following article:
Typical Use Cases of the New Feature
Use the Virtual Device Event Log Integration feature when:
Managing events from an external Time & Attendance (T&A) system in BioStar X
Recording check-in / check-out (punch) events from a mobile app
Sending access events from third-party applications or services
Integrating BioStar X with external systems without database-level linkage
This makes the feature particularly useful for mobile-based attendance, and modern third-party integrations.
Common Misconception: This License Is NOT for Retrieving Logs
Since the release of BioStar X, many questions have arisen due to the name “Event Log API license.”
To clarify:
This license is NOT required to retrieve event logs
You can continue to use the existing API to query event logs:
This API has existed since BioStar 2
It remains free to use
No additional license is required
For guidance on retrieving event logs, please refer to:
[BioStar 2 API] How To Retrieve Events Logs
This license is strictly required only when using the new BioStar X API that inserts event logs into the system.