🆕OS Net API

The OS Net API is a RESTful service provided by Ordnance Survey, enabling access to high-precision GNSS (Global Navigation Satellite System) data across Great Britain. It allows users to query data from OS Net reference stations, retrieve RINEX files, monitor station health, and access metadata.

OS Net makes the accurate determination of national standard coordinates easier and more efficient for land surveyors than traditional (pre-GNSS) surveying methods. It is now possible to determine precise ETRS89 coordinates for your GNSS control stations with a single GNSS receiver, without ever leaving the survey site.

These coordinates can be instantly and precisely transformed to OSGB36, National Grid and ODN height coordinates. Therefore, a greater range of mapping, engineering and environmental projects can now use precise national coordinates that were never previously possible.

This API is designed to support developers, surveyors, and geospatial professionals who require accurate positioning data for tasks such as mapping, surveying, and infrastructure monitoring.

Station metadata access

Retrieve detailed information about OS Net reference stations, including coordinates, elevation, and transformation models.

Network health monitoring

Access hour-by-hour and day-by-day health status of the entire OS Net or individual stations.

RINEX file retrieval

Download RINEX v3 files for specific stations and time periods, supporting post-processing of GNSS data.

Temporal and spatial filtering

Query data using flexible time windows and geographic filters to tailor results to specific needs.

Secure access

Supports OAuth2 and API key authentication for secure and controlled usage.

Things to remember for OS Net API

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