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OS OpenSpace

Take your website or online application to the next level by quickly adding high quality maps that you can annotate with your own information.

Interactive maps for your website or online app

Our free service, OS OpenSpace API, is available for non-commercial websites and includes a generous daily tile limit.

We also offer OS OpenSpace Pro, a premium service for businesses wishing to charge for access, track assets or build internal applications.

OS OpenSpace API

Embed and annotate our maps on your non-commercial website or mobile app.

Learn about the free API

OS OpenSpace Pro

Embed a premium suite of interactive maps in your internal and external web or mobile applications.

Our Pro offering

Get your API key

Just fill out our simple form.

Sign up now


The OS OpenSpace SDK (software development kit) enables you to create free and commercial mobile applications with our data. It provides access to a number of mapping layers and gazetteer lookups and is available for iOS and Android.

The OS OpenSpace SDK for iOS has a similar API to Apple's Mapkit, so that moving from Apple mapping to Ordnance Survey mapping is simple.

With the OS OpenSpace SDK for Android, it is very straightforward to migrate from MapKit to the Ordnance Survey API with only a few changes to your application required.

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© Ordnance Survey 2019