Feign makes writing java http clients easier
Toolbox for developing CLI clients.
Template-driven generator of clients for APIs described by a RAML spec
At this moment it only contains a Builder for retrofit clients, and common exceptions for handling errors
Repository for mobile clients for http://devtalk.pl podcast!
HAPI FHIR - Java API for HL7 FHIR Clients and Servers
Library for writing Factom clients in go
Host multiple clients on the same Magento code base.
Fiber aware EventMachine clients and convenience classes
Custom WHMCS Gateway to allow clients to use Purchase Orders, and Auto Activate, using Custom Client Field