Benchmark Email Lite lets you build an email list from your WordPress site, and easily send your subscribers email versions of your posts and pages.
Add contacts to your SendinBlue mailing list when they submit a Gravity Forms form.
LoL Tracker is a set of tools relating your league of Legends account.
Remote Media Libraries (RML) gives you access to third parties media libraries directly from the WordPress Media Library.
Automatically shares new posts and pages on your Facebook timeline or on Facebook fan page.
Integrate with the Infusionsoft API using the free Novak Solutions SDK. This plugin is a dependency for other Infusionsoft plugins.
Integrates your WordPress site with the Tiqbiz API
This plugin supports multiple markers per map! Kudos to yohman for his plugin: http://wordpress.org/extend/plugins/google-maps-v3-shortcode/
wpckan is a wordpress plugin that exposes a series of functionalities to bring content stored in CKAN to WordPress' UI and also provide mechanism
Free content for your wordpress-site: The widget for the Factfish.com API displays infos about a random selected country.
Latest Tweets widget compatible with the new Twitter API 1.1
This plugin extends functionality so you can include duda multi-screen and mobile preview in your own site. Upgrade to the premium version to cpature
This plugin is used for display the latest tweets in widget's sidebar and it is also compatible with the new Twitter API.
Connect to the Quicket API to display a public feed of events on your WordPress site.
Easily insert images and photos into your blog posts! ImageInject searches the huge Flickr database for creative commons photos related to any topic.
A plugin which allows blogger to embed youtube video on the post and page and get more views for that video.
A simple API to switch the themes on certain conditions.
Grabs images & videos matching any hashtag from social APIs like instagram & youtube.
Calls popular social network APIs and returns a total share/like/+1/tweet/pin count from Facebook, Twitter, LinkedIn, Google Plus and Pinterest.
The Retappd plugin displays a user's Untappd checkins in a post or a page by the use of a shortcode.
Nmwdhj is an API for creating forms elements via code.
This plugin can be used for Dutch football clubs with a WordPress wedsite and a API-key for the KNVB data-API: http://www.knvbdataservice.nl/
Get a deeper insight of your WordPress installation and view detailed information of your SQL queries
Show wordpress.org plugins data in your website
Integration with the Skyword content publication platform.
Facebook API is a facebook share plugin. You can easily use facebook like box, website comment, share, send button, embedded post and more feature use
Make post meta data (custom field values) available for JSON REST API (WP API) when unauthenticated.
BadgeOS turns your site into an achievement and badging system. Easily create badges and set up the steps and achievements users complete to earn them
Plugin that includes HybridAuth, manage providers config and contains documentation and snippets.
Thermal is the WordPress plugin that gives you the power of WP_Query in a RESTful API.