Difference between WebServices and API

Few high level points of difference

Webservice   

• webservice requires network or web to operate. REQ and RES thru network only
• SOAP, REST , XML RPC
• All Web services are APIs but all APIs are not Web services.

API

• API may or maynot require network. It can be as library or web. It can place on system or bind with app
• SOAP, REST , XML RPC and curl as well on unix
• API can be form of JAR, DLL etc. which are not on the network and can not be called as web services.
•