Salesforce Developer Account Setup
To set up a free developer Salesforce account:
Go to http://developer.salesforce.com/signup and register.
After logging in to Salesforce, go to Setup.
Select your name from the banner at the top of the window, and select My Settings.
Select Reset My Security Token and press the Reset Security Token button.
An email is sent to you with your new security token.
Salesforce uses password plus security token for API authentication.