Open data
Open science you can explore yourself
The Gravitational Wave Open Science Center (GWOSC) publishes the data behind the discoveries — free to download, analyze, and learn from.
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What's available
Tools for every level
Event catalogs
Browse confirmed and candidate events, including the GWTC series of transient catalogs.
Strain data
Download the calibrated detector data used to identify events.
Tutorials
Step-by-step notebooks that walk through real gravitational-wave analyses.
Software tools
Open-source libraries for reading, filtering, and visualizing data.
Public API
Query catalogs and metadata programmatically with simple GET requests.
Detector status
Check which detectors are currently observing.
About the API
A note on the GWOSC API
The GWOSC API (v2) is public, CORS-enabled, and requires no authentication. It is accessed with standard GET requests and returns event and catalog metadata in machine-readable form.
GWOSC provides downloadable data and an API — it does not offer real-time webhooks. For time-sensitive public alerts, see the LVK public alert stream on GraceDB.