AI engineering glossary · Web APIs HTTP
What is User-Agent?
User-Agent: A request header in which a client identifies itself, naming the browser, library or app and its version. Servers use it for analytics and to tailor responses, and some APIs ask you to set a meaningful one.
User-Agent: an example
User-Agent: python-requests/2.x tells the server the call came from the requests library.
Related terms
More Web APIs HTTP terms
Where you learn it
User-Agent is part of the AI Engineering Program, which teaches it with notes, a hands-on lab and an exam. The first lesson is free.