humans.txt

Liberapay is the result of the work of many people.
The main direct contributors are listed on https://github.com/liberapay/liberapay.com/graphs/contributors?from=2015-05-01
The contributors to Liberapay's predecessor, Gittip / Gratipay, can be seen on https://github.com/liberapay/liberapay.com/graphs/contributors?to=2015-05-01
Indirect contributors include everyone who has ever contributed to a tool that is or has been used to build Liberapay or its predecessors. Obviously that's a very big list.