Digitize Your Debt Issuance Process
Clearstream’s vision is to provide the technical architecture for a zero-touch, same-day, fully digitalized and standardized debt issuance process. Our innovative API enables you to streamline your debt issuance process, from ISIN code requests to instrument data delivery for ISIN activation.

The API exposes business and technical data directly to the IT systems of our clients and partners, enabling seamless and secure integration with multiple APIs across products. Beyond ISIN code acceptance and creation, the D7 Pre-Issuance API enables instrument data delivery and allocation of common codes, CFI (Classification of Financial Instruments) and FISN (Financial Instrument Short Name) identifiers to the securities.
To access the D7 Pre-Issuance API, users must subscribe to the ClearstreamXact connectivity suite and complete Clearstream’s API Agreement including the D7 Pre-Issuance API Annex. Xact Web Portal provides self-management of the API credentials and the necessary digital certificate for service activation.
Get in Touch
Please contact your Relationship Manager for further information and access additional support material on the Clearstream API platform, your Application Programming Interface access.
Please contact the Primary Market Relations team for further information and guidance on the onboarding process: primarymarketrelations@clearstream.com
Related Resources
Clearstream API Services
Find out more about our dedicated API platform that complements the ClearstreamXact suite of connectivity solutions.
Deutsche Börse Group API Platform
Further technical details on the features of the D7 Pre-Issuance API are available via the Deutsche Börse Group API platform.