# Adding a Variant Effect Predictor (VEP) Database
Click the **+ Add VEP database** button under the *VEP database* section on the [library file management page](broken://spaces/5WPPw051cYE3Zthy5U7m/pages/9npv9u7RcPWHiXftGkmn).
If you are using an species supported by Connected Multiomics (i.e., human, mouse), a VEP database from [ENSEMBL](http://www.ensembl.org/info/data/ftp/index.html) will be available for automatic download. Select the **Download database** radio button and click **Create** (Figure 1).
Figure 1. For certain model organisms, automatic downloads of VEP databases are available.
If you are working with a custom assembly, choose the **Import database** radio button and click **Create** (Figure 1). A VEP database can be added from your local computer by clicking the option of *My Computer.* ENSEMBL maintains an extensive list of VEP databases for various species. We recommend going to [ENSEMBL's ftp download site](http://www.ensembl.org/info/data/ftp/index.html) and finding the VEP database download link for your species of interest.
One VEP database is allowed per genome assembly. Once a VEP is successfully imported, the **+ Add VEP database** button will not be shown (Figure 2).
Figure 2. Successful addition of a VEP database library file.
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