Bloomberg Data API
The Bloomberg Open API (BLPAPI) provides programmatic access to Bloomberg's market data, reference data, historical data and intraday tick data. It is an event-driven session protocol rather than an HTTP API: clients open a session, request a service such as //blp/refdata or //blp/mktdata, and consume events and messages. First-party SDKs are published for C++, Java, C# (.NET) and Python and cover the Desktop API, Server API and B-PIPE products.