Which protocols do you support?

Kilobytez works in FIX 4.2, FIX 4.4, FIX 5.0, binary protocols and venue-specific APIs. Kilobytez holds no live venue connection and no venue certification of its own.

Can Kilobytez help with TXSE connectivity?

It offers TXSE readiness work, FIX planning, certification test harnesses, and production operations. It has no relationship with TXSE, no certification from it, and no live connection to it.

Services

Exchange Connectivity

FIX integration work, scoped against the spec your venue actually publishes.

Kilobytez builds FIX protocol integrations that let you send orders, receive executions, and consume market data. The work is scoped against the specification the venue publishes and validated with a certification test harness before it goes anywhere near production.

Key Deliverables

FIX 4.2 / 4.4 / 5.0 gateway development
Order entry and execution management systems
Drop copy and trade reporting integrations
Market data feed handlers (UDP multicast, TCP)
Multi-venue smart order routing
Certification and compliance testing
Production monitoring and alerting
Runbooks and an agreed support arrangement, sized to the engagement and agreed in writing

Venues a FIX integration can target

TXSE

NYSE

NASDAQ

CBOE

CME

ICE

IEX

MEMX

Any FIX-compliant venue

These are protocol targets, not partnerships. Kilobytez has no relationship with, certification from, or endorsement by any venue listed, and holds no live connection to any of them today.

One order system, every venue it talks to

Orders outAcks, fills, data in

Illustrative map. Kilobytez builds each connection to the venue’s published specifications and certification process, and holds no venue connection of its own today.

Ready for TXSE

The launch window TXSE announced ran July 2 to 17, 2026 and has passed, with FIX 5.0 connectivity. Kilobytez has no engagement with TXSE and has not certified against it. What we offer is the preparation work: reading the published spec, planning sessions and message flow, and building the test harness before you go into certification.

Discuss TXSE Connectivity

What we will and will not claim

Kilobytez works in FIX 4.2, 4.4, and 5.0, and in the binary and venue-specific protocols a given exchange publishes. Deployment can be cloud, on-premise, or hybrid depending on what your venue and your risk posture allow.

We do not publish latency, throughput, or uptime figures, because Kilobytez has never measured them on a production system of its own and borrowed numbers are just numbers. If your requirement is a specific measured latency budget, say so on the first call and we will tell you honestly whether this is the right firm.

A FIX order, tag by tag

Sample message · not live

→ out · NewOrderSingle

8=FIX.4.4|35=D|49=CLIENT|56=VENUE|11=ORD0001|55=XYZ|54=1|38=100|40=2|44=10.25|59=0|

← back · ExecutionReport

35=8|11=ORD0001|150=F|39=2|32=100|31=10.25|

“|” stands for the SOH field separator a real session uses.

What that tag means

Order out, fill back.

Every field is checked against the venue’s published spec before go-live.

35=D: NewOrderSingle
54=1: buy
38=100: OrderQty
40=2: limit
44=10.25: Price
35=8: ExecutionReport
39=2: filled

Our Process

Discovery & Requirements

Architecture Design

Development & Testing

Exchange Certification

Production Deployment

Ongoing Support