http://magentohost/api/?wsdl
http://magentohost/api/soap/?wsdl

[Thu Jul 24 08:18:28 2014] [error] [client 10.0.0.115] PHP Warning:  SoapServer::SoapServer(): I/O warning : failed to load external entity "http://hsotname.com/index.php/api/v2_soap/index/?wsdl=1&wsdl%2F%24metadata=" in /var/www/html/lib/Zend/Soap/Server.php on line 811

[Thu Jul 24 08:18:28 2014] [error] [client 10.0.0.115] PHP Fatal error:  SOAP-ERROR: Parsing WSDL: Couldn't load from 'http://hostname.com/index.php/api/v2_soap/index/?wsdl=1&wsdl%2F%24metadata=' : failed to load external entity "http://hostname.com/index.php/api/v2_soap/index/?wsdl=1&wsdl%2F%24metadata="n in /var/www/html/lib/Zend/Soap/Server.php on line 811

http://magentohost/api/v2_soap?wsdl=1