San Francisco Ethics Commission requires lobbyists to file monthly disclosure statements electronically. The disclosures give access to the lobbyist client lists, expenses, political contributions and more. In order to make those statements more transparent, the Ethics Commission API provides access to the lobbyist database. Developers can search filings by year, lobbyist, and individual filings.
The API is free and available without an API key. The RESTful service returns data in JSON format.