title: Address Verification Service with paypal api
body: <p>We wanted to implement paypal api for the online payment transaction. Which we did successfully, but now we want to verify the Billing Address against the CC details provided by the end user.</p>
  
  <p>We read some article and found that we can use PAYPAL AVS for the same. Can anyone tell us, how we can use this service in PAYPAL NVP API.</p>