What is the OS OpenSpace API?

OS OpenSpace is an application programming interface (API) that supports the creation of dynamic mapping applications that can be embedded on your website.

What can I use it for?

Use the OS OpenSpace API to add Ordnance Survey maps to your website or blog.
Let your visitors experience smooth panning and zooming to reveal different mapping scales.
Add your own markers, lines and Ordnance Survey data derived from the Boundary-Line™ product.
Add place name and postcode look-ups with our search services and add your own data and locations.
Enhance your site and inform your visitors by showing your data on top of Ordnance Survey maps using the OS OpenSpace API. Provided your application is freely accessible and you meet the terms of the OS OpenSpace Developer Agreement, the API can be used on a community website for a group, club or charity; on a business website; on a local authority site; or for you own individual web project.

See the Developer Agreement and FAQs for more details.

Other ways to interact with Ordnance Survey

If you don't want to use the OS OpenSpace API, you can still interact with Ordnance Survey mapping in other ways;

For applications that need to use higher volumes of data for commercial applications, we are developing a new OS OpenSpace Pro service. Please contact us at openspacepro@ordnancesurvey.co.uk for further information and to find out more about its development.

Get a Map is a free-at-the-point-of-use service that allows you to locate a place and copy a static image of a map to show on a web page.

Ordnance Survey's Outdoor exploration Portal is a free-to-access community site that lets you plot routes on Ordnance Survey maps and share them with other users.