The Python Foursquare V2 Library is a wrapper for version 2 of the Foursquare API. It provides automatic retrieves, full non-merchant endpoint coverage, full test coverage, useful exception classes, and multi support.
The Votizen API aims to get friends to involve their friends in supporting candidates. The API website notes that the API is entirely based on HTTP. Votizen is based on the premise that, "Voters are more likely to listen to friends than campaign volunteers." Votizen is the first "social campaigning platform built entirely on personal connections."