Bloomberg BLPAPI (Desktop API)
BLPAPI is Bloomberg's core programming interface for the Bloomberg Terminal Desktop API, Server API (SAPI), B-PIPE, and Platform products. It exposes a unified asynchronous session/event/subscription model for requesting reference data, historical data, intraday bars and ticks, market data subscriptions, instrument lookup, and field information via services such as //blp/refdata, //blp/mktdata, //blp/apiflds, and //blp/instruments. SDKs are published in C++, Java, Python, and .NET; the Python SDK alone has 39 releases and ships against version 3.26.4.