Cicero is a web service API that geocodes addresses and matches them to legislative districts and elected official contact information. Cicero easily integrates into an organization's existing web application or data management software. Available legislative districts include local council districts in more than 300 cities, and state and national districts in the United States, Canada, United Kingdom, New Zealand, Mexico, and Australia. In addition to geocoding addresses and matching them to the correct legislative districts, Cicero returns maps of each district, and detailed information about each elected official including office addresses, emails, and social media identifiers. Cicero also provides non-legislative district matching for census data, counties, school districts, watersheds and police districts.