FollowTheMoney API

From Sunlabs wiki

The Follow the Money API by the National Institute for Money in State Politics (NIMSP) tracks state based campaign contribution and legislative information in all 50 states. This allows you to track contributions to gubernatorial, state legislator and state senate races. It does require a key and prohibits commercial use

Documentation: http://www.followthemoney.org/services/index.phtml

Methods: http://www.followthemoney.org/services/methods.phtml

Registration: http://www.followthemoney.org/services/signup.phtml