# FMX UST

**Canonical:** https://apis.io/apis/bgc-partners/fmx-ust/  
**Provider:** BGC Group — https://apis.io/providers/bgc-partners/  
**Base URL:** https://www.fenicsust.com  
**Documentation:** https://www.fenicsust.com

FMX UST is one of 7 APIs that [BGC Group](https://apis.io/providers/bgc-partners/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include US Treasuries, Electronic Trading, FIX Protocol, Binary Protocol, and Market Data. The published artifact set on APIs.io includes API documentation.

FMX UST (formerly Fenics UST) is BGC's electronic trading venue for U.S. Treasuries. Connectivity is a "point-to-point service based on industry standards TCP/IP and the FIX Protocol." Supports FIX 4.4 with selected FIX 5.0 tags; proprietary BOP (Binary Order Protocol) over TCP for order entry; BIMP (Binary Market Data Protocol) over multicast for market data; Drop Copy and STP services. Order book depth of 10 price levels in increments of 1/16 of a 32nd.

## Machine-readable artifacts (2)

- **Portal** — https://www.fenicsust.com
- **Documentation** — https://www.fenicsust.com/technology/

## Other BGC Group APIs (6)

- [FMX Futures Exchange Connectivity](https://apis.io/apis/bgc-partners/fmx-futures/)
- [FMX FX (Fenics FX)](https://apis.io/apis/bgc-partners/fmx-fx/)
- [Fenics Market Data](https://apis.io/apis/bgc-partners/fenics-market-data/)
- [Lucera LumeMarkets](https://apis.io/apis/bgc-partners/lucera/)
- [Capitalab](https://apis.io/apis/bgc-partners/capitalab/)
- [GFI Group](https://apis.io/apis/bgc-partners/gfi-group/)

## Tags

US Treasuries, Electronic Trading, FIX Protocol, Binary Protocol, Market Data, Central Limit Order Book

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/bgc-partners/fmx-ust/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/bgc-partners/.