API to Bloomberg data services, available in a variety of languages
The Bloomberg API (BLPAPI) is a comprehensive API providing access to financial market data feeds provided by Bloomberg's products (Bloomberg Professional Service, Platform, B-Pipe and others). The API is free-to-use and distribute; documentation and library downloads are available from the Open Bloomberg site. API libraries are offered for many platforms (Windows, Linux, and Solaris) and for a variety of programming languages (C, C++, C#, Java, Python and more).
This tag should be used for asking questions about the usage of the API itself, but not for technical support questions about Bloomberg's services and products. For example, if you cannot establish a server session using the API because the library cannot connect, you should contact Bloomberg's customer support team. However, if you are unsure how to apply a particular API call to the problem you are trying to solve, ask away right here on Stack Overflow, and be sure to tag your question appropriately with the platform and language you are developing with.