FixSpec Add Bit Field Support in v1.2 of the FinSpec Schema

FixSpec 19th Feb 2018
1 min read

API Specifications FinSpec

FixSpec is pleased to announce version 1.2 of the FinSpec schema, which adds support for bit fields for binary protocols. Bit fields are an increasingly popular choice for low-latency APIs seeking to reduce message size on the wire, by allowing up to 8 indicators to be conveyed in a single 1-byte.

The need for formal bit field recognition has accelerated since the many exchanges adopted them for conveying various MiFID II-related indicators on orders and executions.

We are pleased to announce the release of version 1.2 of the FinSpec schema, which further expands our support for non-FIX protocols. We look forward to continuing to evolve the schema in conjunction with market changes going forward.

Chris Lees, Founder of FixSpec

FixSpec’s founding vision is that the creation and sharing of machine-readable API specifications can unlock massive efficiency gains in financial markets connectivity. The FinSpec schema supports that vision by offering an open-sourced, independent schema, designed for the creation of multi-protocol, machine-readable API specifications (also known as ROEs).

The schema is available on Github under the Apache 2.0 license, with documentation and examples available at The JSON-schema allows FinSpec documents to be validated for compliance prior to processing, and FixSpec provide an open-sourced a node-based validation tool for this purpose.

FixSpec actively encourages contributions and discussion to the development of the schema from all areas of the industry. Check out our website for more information and perspectives on the future of electronic specifications in our industry.

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