FTP Access

All the files that make up a CATH release can be downloaded via FTP. This includes domain choppings (CathDomall), domain assignments (CathDomainList), classification names (CathNames) and more.

Download CATH Data
Latest version 4.0.0


Programmatic access to CATH data is possible via a number of different WebService protocols.


We use a REST-based API to power a number of the component on this website. These services are also available for external use.


We provide access to CATH data via SOAP-based webservices as part of our collaboration in the EMBRACE project.


We also offer a number of DAS feeds that provide CATH / Gene3D annotations.

Note: Some links above have been intentionally disabled until the documentation has been finished.