Eurex/Xetra T7 Enhanced Drop Copy Interface (EDCI) Handler SDK

The OnixS directConnect: Eurex/Xetra T7 Enhanced Drop Copy Interface (EDCI) Handler is an ultra-low-latency SDK that gives clearing members, non-clearing members (NCMs) and trading participants a turnkey, conformance-ready client for Deutsche Börse Group's new T7 EDCI service — delivering real-time order drop copy data for both Eurex derivatives and Xetra cash markets.

Pre-tested against Deutsche Börse's T7 EDCI specification – saving time and money in conformance and integration testing.
Ultra-low latency, high throughput, and low CPU load – engineered for real-time risk and surveillance workloads.
Supported – service-level guarantee that the implementation is production-strength and will support current and future EDCI enhancements.
Supports the T7 EDCI semantics using FIX 5.0 with Simple Binary Encoding (SBE) over a proprietary EDCI session layer.
Real-time visibility for clearing members into the order book activity of their NCMs – react proactively before risk positions accumulate.
Comprehensive view for trading participants of every order action affecting the book, including lean orders.
Full handling of the order drop copy stream lifecycle: initial book restatement, ongoing updates, and single & mass cancellations across every T7 trading partition.

TLS 1.3 secure connectivity with DigiCert root certificate verification – out of the box.
Built-in heartbeat monitoring (configurable 100 ms–60 s) and robust reject handling for resilient sessions.
Automatic re-synchronization on session re-establishment – including local order book invalidation on Trading Session Event (Start of Order Book Synchronization) and Order Book Reset.
UTC nanosecond timestamps (ExecID, RequestTime, SendingTime) exposed through the SDK API for accurate sequencing and cross-system traceability.
Easy-to-use and flexible API – designed for rapid integration within risk, surveillance and post-trade architectures, with a common API style for multi-venue implementations.
Includes fast-start source-code reference implementations with client and benchmarking samples – designed for rapid familiarisation and to get up and running quickly.
Flexible licensing terms and service level based support. Source Code Escrow.

Free 30 day evaluation

Further information

Order Drop Copy Stream

Real-time delivery of every order action impacting the book – including lean orders – via Extended Order Information messages, plus single and mass Order (Mass) Cancellation events with full system and client order ID references.

Session Layer & Lifecycle

Full handling of Session Logon/Logout, Heartbeat, Reject, Session List Notification, and Partition List Notification – including per-partition Trading Session Event messages for synchronization, reset, restatement and end-of-service.

Cash & Derivatives Markets

One SDK, both markets. EDCI is provided for both cash and derivatives from T7 Release 14.1, with consistent semantics across Eurex derivatives and Xetra cash – reducing integration cost for multi-asset firms.

Secure, Resilient Connectivity