ESCO giver i øjeblikket adgang til klassifikationen via to primære API'er:

Denne webbaserede API er udformet til at understøtte interoperabel interaktion mellem maskiner via internettet.

Dette er en version af ESCO API'en, der kan downloades, og som giver slutbrugerne adgang til softwaren lokalt på en computer.
Licensing Information for ESCO API Libraries and Software
This section comprises information about the licensing of the libraries and software used to develop the ESCO API.
European Union Public License (EUPL) 1.2
The ESCO API is licensed under the EUPL 1.2, which is a free software license created by the European Commission.
Apache Software License
Several components of the ESCO API are licensed under the Apache License 2.0.
- SOLR: Apache License 2.0
- Fuseki: Apache License 2.0
- Apache Tomcat: Apache License 2.0
- Spring Framework: Apache License 2.0