Check out the latest documentation.

Where to Download

Please choose one of the links below to obtain a copy of the API. Once the download completes please proceed to the Installation page for instructions on how to install the API.

As of version, the NuGet package has now been split into 3 packages:, and These can be updated independently.

The Data package just contains an up-to-date data file, the Core package just contains the API and the Web package contains an example web page to get you set up straight away.

Due to how the package dependencies are set, downloading the 51Degrees.mob-web package is equivalent to downloading the old package.