# Embed the Supported Spotfire Enterprise Runtime for R Engine

The TERR engine is designed to be embedded in applications that require including a general computational statistical engine.

TERR has an embedding interface that implements a fully-compatible subset of the R embedding API, which is included in the open-source R engine developed by The R Project for Statistical Computing. Because TERR is targeted at adding computational functionality to applications, it includes none of the R embedding APIs providing GUI support.

Note: Open-source R is available under separate open source software license terms and is not part of TERR. As such, open-source R is not within the scope of your license for TERR. Open-source R is not supported, maintained, or warranted in any way by Cloud Software Group, Inc. Download and use of open-source R is solely at your own discretion and subject to the free open source license terms applicable to open-source R.

- If you have an existing application that embeds the open-source R engine using the subset of the embedding APIs supported by TERR, you can embed the TERR engine by simply replacing the open-source R binaries with the TERR binaries.
- If you are developing an application and want to embed the TERR engine, you can do so by adding embedding support for the open-source R engine, and then including the TERR binaries instead of the open-source R binaries in the final application.