Chronicling America from the US Library of Congress, provides access to information about historic newspapers and select digitized newspaper pages. The site allows you to search and view newspaper pages from 1880-1922 and find information about American newspapers published between 1690-present. To encourage a wide range of potential uses, we designed several different views of the data we provide, all of which are publicly visible. You do not need an API key to use them.
How far back do your newspaper's online archives go? The U.S. Library of Congress has a database of thousands of newspapers dating back to the 1800s. In the case of over 150 of the papers, there are also digitized, searchable pages. And it's all available via its new Chronicling America API (technical details at our Chronicling America API profile).