diff --git a/bip-0021.mediawiki b/bip-0021.mediawiki
index e7094e58..92a05890 100644
--- a/bip-0021.mediawiki
+++ b/bip-0021.mediawiki
@@ -122,3 +122,5 @@ Characters must be URI encoded properly.
 === Bitcoin clients ===
 * Bitcoin-Qt supports the old version of Bitcoin URIs (ie without the req- prefix), with Windows and KDE integration as of commit 70f55355e29c8e45b607e782c5d76609d23cc858.
 
+=== Bitcoin libraries ===
+* [[BitcoinPaymentURI|https://github.com/SandroMachado/BitcoinPaymentURI]] Java library to process and generate Bitcoin payment URI's.