Login - must be called before any other method: Username(25), Password(50). Returns a token string required by the other methods<br /> An <a href='http://www.eldercare.gov/Eldercare.NET/Public/Site_Utilities/API_Reg/API_Registration.aspx' title='Link to the API Registration Page'>API Account</a> is required to access the Eldercare API Search for Eldercare Agencies by 5 digit Zipcode. Login Tokin Required. Search for Eldercare Agencies by City & State. State must be the 2 character abbreviation. Login Token Required.