About Userstack API
Revolutionizing User-Agent Lookup Since 2014
How it all started
In early 2014, the first-ever version of userstack, then called UserAgent API saw the light of day, placed in a market that had not seen many User-Agent detection cloud APIs before. It soon became clear that developers and companies from all around the world would become potential clients, which led to further development and improvement of the product, and ultimately to its relaunch as userstack.
Today, userstack is counting thousands of active users, from freelance developers and SMBs all the way to large corporations, including Accenture, Apple and Intuit.
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userstack is a service built and maintained by apilayer, the company behind some of the most popular developer tools, SaaS products and APIs currently on the market — including currencylayer, eversign, invoicely and many more.
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