iStockphoto provides web services via an XML-RPC API. The web service provides access to a wide range of iStockphoto.com functionality and content including: full search capabilities, lightbox management, file downloading, member statistics, contributor portfolio management, and image uploading.
Additional photo-related API's:

Windows Live Spaces Photo API

AOL Pictures JSON API

GIMP API

Provider: iStockphoto	Submitted By: APIFinder.com Staff
License: Open (free)	Email: Email this contributor
Price: 0	Connection Protocols: XML-RPC
Notes: An account with iStockphoto and a Developer Key are required to use this API.
Functions: Graphics/Games, Programming/Development
Languages/OS: Web Service