Welcome to the .NET Developer Center

Yahoo! Language centers have been deprecated. If you have any concerns or questions, please don't hesitate to contact us in General Discussion at YDN forum.

This site is your source for information about using the .NET Framework with Yahoo! Web Services and APIs. Here you'll find:

  • HOWTO Articles to help you understand our technologies and how you can use them better with .NET.
  • Download the sample browser, utility libraries and source code.
  • Other Resources on the web where you can find source code and helpful tools.
  • Community Resources where you can join our mailing list and discuss the Yahoo! APIs with us and with other .NET developers.

HOWTO Articles

Get comfortable using .NET with Yahoo! Web Services

  • HOWTO: Make Yahoo! Web Service REST calls with C# and VB.NET
  • HOWTO: Using Returned XML with C# and VB.NET
  • HOWTO: Cache API Calls Using C# and VB.NET
  • HOWTO: Access Yahoo! Web Services Using XAML


In this section you'll find the source code for the samples used in the HOWTO articles and ready-to-use Browser-Based Authentication utility libraries for .NET 1.1 and 2.0 along with full source code.

Other resources

In this section you'll find links to external sites and articles that may be useful as you work with the .NET Framwork.

Community Resources

Discuss how to work with the Yahoo! Web Services and other APIs using .NET on the ydn-dotnet mailing list. Please note that this is not a general .NET programming questions list; try to keep your questions focused to discussion about the Yahoo! APIs.

We also provide individual lists for each of the web services and APIs we support; your questions are always welcome there as well. See the Yahoo! Developer Network Community page for more information on these mailing lists.

Yahoo Forum Discussions