Desktop Widget Open APIs
| Provider | Description | Commercial Use | Limits | Terms | Fees |
| Serence | Write XML/RSS (external) data visualisation/presentation widgets. Capabilities limited to using | None | |||
| Yahoo | Widget Engine v3.0. Yahoo's release of the Konfabulator technology. Write cool widgets for your desktop. Capabilities unlimited. | Yes | None | Yes | None |
| Homepage API lets a user define a module for us on the personalized home page. | Yes | Yes | |||
| Touchstone | A client-side all-purpose heads-up-display for web-apps. Helps users to subscribe to what matters, set rules for what's important and stay up-to-date while they work. The more important the alert the more disruptive the presentation. | Yes | None | None | |
| Netjaxer | A desktop application launcher and directory for Web 2.0/Ajax sites. NetJaxer users are able to launch Web 2.0 applications like Meebo, TadaList, Digg, Writely, and Rollyo, among others, from their Windows desktop, start menu and taskbar. | Yes | None | None |
Examples of sites using APIs
None so farDefinitions:
Provider - Who is providing the API?
Description - What does the API let you do?
Commercial Use - Can you use this API for commercial use without asking?
Limits - Are there any limitations to amount of usage?
Terms - Link to Terms of Service