The OpenFEC API added a filings endpoint as well as itemized receipt and disbursement data. This is the first major update to the API: The records we’re adding today are the meat and potatoes of campaign finance. You can see in detail where a campaign’s money comes from and where they spend their money.
Today marks the launch of the FEC’s first API. With that API, searching for candidates and committees will be easier and more interactive. Information is organized around concepts like candidates, which are more welcoming than navigating buckets of information based on forms.