camdagr8

This plugin serves as a faux web service that outputs data from the WP Database to an application in the format of XML or JSON. It is intended to make managing data for applications easier by leveraging WordPress’ awesome admin and data management. 
 
This plugin insures that the requesting party is a valid user of the API before outputing any data or executing a function. 
* PHP and WordPress knowledge is required to create your own functions and data outputs. 
 ** Be sure to backup your services.php file when updating to newer versions of the plugin.

Flash API

This plugin serves as a faux web service that outputs data from the WP Database…

tonnaer

A free, small (only 13Kb) flash slide show widget, that can easily be integrated 
into your WordPress 3.4 website, and can be entirely (or almost) personalized 
through a bunch of parameters.
New features: 
* A title can be set 
* Slides can be loaded through a proxy, enabling cross domain image loading 
* The transparancy of the slide show’s background can be set 
* A watermark image, its transparancy, position and full-window display can be set 
* A new border type: image 
* The possibility to set a different target window for each slide 
* The possibility to load all images (jpeg, gif and png) in a folder 
* The possibility to use dynamic xml creation, which should resolve any write permission problems 
* The possibility to choose if images must be resized to fit the slideshow window
Other features: 
* also works if you’ve given <a href="https://codex.wordpress.org/Giving_WordPress_Its_Own_Directory" title="Giving WordPress its own directory" rel="nofollow ugc">WordPress its own directory</a> 
* works with redirects 
* works with permalinks 
* height and width can be set 
* 28 transition types 
* links can be enabled (one for the whole slide show, or one for each slide) 
* slides can be shown in forward, backward or random order 
* border style, color, width and transparancy can be specified 
* caption can be text or image 
* caption can be the same for the whole slide show, or a different one for each slide 
* caption characteristics (position, style, font, fontsize, color, transparancy, etc) 
 can be specified 
* you can have more than one slide show on your pages. 
* etc.

Creative Clans Slide Show

A free widget to use the Creative Clans Slide Show in your Wordpress website.

Flash API vs Creative Clans Slide Show