Currency pairs are not currently represented in a Standard way by FDC3 Context types. An fdc3.currency type exists as does a convention for fields that represent a currency (see: https://fdc3.finos.org/docs/next/context/spec#currency-codes), but no convention or type representing a currency pair, which are commonly traded instruments.

Currencies themselves are standardized via 3 letter codes defined in ISO 4217
Currency pairs are defined by convention based on two such code, bought currency first, sold currency second with an optional / character in between.

This proposal seeks to standardize currency pairs in the form including a / (e.g. "GBP/USD") as part of the Context Part's field type conventions, and to standardize the key "CURRENCY_PAIR" in the fdc3.instrument type's id field.