Wild caught Pipa parva, Pipa carvalhoi and Pipa pipa are quite rare in the European pet trade. Captive bred Pipa parva are sometimes available from private breeders.
Pipa pipa is regularly available in the USA.
Pipas are kept in a lot of zoos.
Pipa parva of Joachim Schoelkopf
Pipa carvalhoi and Pipa pipa at the Vivarium Chemnitz
Pipa pipa of Jan Dvořák