OnixS EDCI Handler SDK for Eurex T7: Real-Time Order Visibility for Risk-Critical Systems

Beyond Drop Copy: Real-Time Order Inventory Visibility with the OnixS Eurex/Xetra T7 EDCI Handler SDK

Real-time order book visibility for clearing members and trading participants — across Eurex derivatives and Xetra cash markets — enabled by Deutsche Börse Group’s T7 Release 14.1 Enhanced Drop Copy Interface (EDCI).

OnixS is pleased to announce the immediate availability of the OnixS directConnect: Eurex/Xetra T7 Enhanced Drop Copy Interface (EDCI) Handler SDK — an ultra-low-latency native C++ client for Deutsche Börse Group’s new EDCI service.

T7 EDCI Changes the Role of Drop Copy

EDCI is a new T7 service that goes beyond traditional trade drop copy by delivering real-time order activity across the full order lifecycle.

Clearing members can monitor the order book activity of their non-clearing members (NCMs) as it happens — reacting to risk before positions accumulate. Trading participants gain a comprehensive, real-time view of every order action affecting the book, including lean orders.

This represents a shift from post-trade reporting to continuous order-level visibility for risk monitoring and operational control.

Designed for Clearing Members and Trading Participants

T7 EDCI is purpose-built for:

• Clearing members requiring real-time oversight of NCM activity

• Trading participants needing complete order lifecycle visibility

• Risk and surveillance systems that depend on intra-day accuracy  

A New Protocol Stack, Handled for You

T7 EDCI introduces a modern and more complex interface architecture, combining:

• FIX 5.0 semantics

• Simple Binary Encoding (SBE)

• Dedicated session layer

• TLS 1.3 secure transport  

   

The OnixS T7 EDCI Handler SDK abstracts this complexity — handling the full session and stream lifecycle — so your team can focus on application logic rather than low-level protocol implementation.

Key Benefits

• Real-time NCM visibility for clearing members — react proactively before risk positions accumulate

• Comprehensive order action coverage — including lean orders and full lifecycle events

• One SDK, both markets — Eurex derivatives and Xetra cash

• Ultra-low latency, high throughput — engineered to OnixS directConnect performance standards

• Production-ready and conformance-tested — aligned with Deutsche Börse EDCI specifications

• Secure by design — TLS 1.3 connectivity with DigiCert certificate verification

• Full lifecycle management — logon, heartbeat, rejects, partition handling, initial book restatement, updates, and cancellations

• Proven OnixS technology — built on the same trusted code base as Eurex EMDI/EOBI/MDI/RDI and ETI handlers

Accelerate Your T7 EDCI Integration

The OnixS T7 EDCI Handler SDK enables rapid adoption of this new T7 capability, reducing implementation risk and time-to-market for firms building next-generation risk, surveillance, and post-trade systems.

For full product details and documentation, visit the Eurex/Xetra T7 EDCI Handler SDK product page.