Thunder Client is a lightweight Rest API Client Extension for VS Code
Template-driven engine to generate documentation
Examples, server integrations for generating Swagger API Specification
OpenAPI Generator allows generation of API client libraries
OpenAPI based HTTP Client code generator
GitHub REST API client for JavaScript
NetSuite PHP API Client with namespaces and autoloading
Generic utility to use with an application's data fetching layer
Development toolkit for Web Services and XML data bindings for C & C++
Tankerkoenig.de REST API for Delphi
Cross platform API request builder to make HTTP with different methods
A boilerplate for REST API Development with Node.js, Express, etc.
Embrace the APIs of the future. For developing APIs
SugarCRM/SuiteCRM Java REST Client
SugarCRM .NET C# REST Client