CSC API V2.2

Released on 6 November 2025, the CSC API V2.2 is developed by the Cloud Signature Consortium, a non-profit association of industry and academic organizations committed to enabling interoperable, cloud-based digital signature solutions. This specification supports integration with standards such as the eIDAS Regulation (910/2014) and the European Digital Identity Framework, and is designed to work with established frameworks like OAuth 2.0 and OpenID for Verifiable Credentials.

You are invited to download the Specification below. Click the buttons below to get started.

Published: 6 November 2025