The Yahoo! Mail Web Service offers two different ways to communicate: SOAP and JSON-RPC. The best choice depends on the programming language you intend to use to develop your application. Not all languages that support SOAP are compatible with the Yahoo! Mail Web Service, but all languages that support JSON-RPC are compatible with the Yahoo! Mail Web Service.
|.NET||Yes, tested successfully||Yes|
|Java||Yes, Axis2 and JAX-WS tested successfully||Yes|
|Perl||No, SOAP Lite tested with incompatibilities||Yes|
|PHP 4||No, Nusoap and Pear SOAP tested with incompatibilities||Yes|
|PHP 5||Yes, built-in SOAP extension tested successfully||Yes|
|Python||No, ZSI and SOAPpy tested with incompatibilities||Yes|