DrupalGap is an open source application development kit for Drupal websites. It can be used to easily build custom mobile apps, and web apps for Drupal websites.
Home page: drupalgap.org
Dev kit: github.com/signalpoint/DrupalGap
CiviCRM Entity is a Drupal module which exposes many CiviCRM API entities as true Drupal entity types. That means that almost any module that can use Drupal entities can also access and manipulate CiviCRM data, Drupal style.
Acts as a specific case of "remote entity types"
Unlike Red Hen, provides deep integration with an Open Source CRM wtih a large and vibrant community
Compatible with CiviCRM versions 4.3-4.7, but works best with 4.6 and above.
A user interface for configuring Drupal 8's REST module.
A JavaScript Library and API for Drupal 8 REST.
Drupal 8 Application Development.
Expose your Search API results with your RESTful API.
The development and issues of this module are handled in the GitHub project.
Simple OAuth is an implementation of the OAuth 2.0 Authorization Framework RFC. Using OAuth 2.0 Bearer Token is very easy. See how you can get the basics working in less than 5 minutes! This project is focused in simplicity of use and flexibility. When deciding which project to use, also consider other projects like OAuth, an OAuth 1 implementation that doesn't rely on you having https in your production server.
Generate an API server that implements the {json:api} specification.
Please read the documentation to further your understanding on how to use the JSON API module.
As of version 8.x-1.2 the structure of the returned JSON has changed. See #2837697: Alter the format of the json returned for more information.
This module provides a REST endpoint to retrieve menu items based on the menu name.
Retrieve and submit webforms via REST. Requires the dev version of Webform.
Retrieve Webform
Version 1.x
GET /webform_rest/elements/webform_id?_format=hal_json
Version 2.x