anchor.diff: -Note: we assume that you already created a tenant (see the http://docs.kill-bill.org/userguide.html#five-minutes-create-tenant[Kill Bill in 5 minutes]).
  -
   The first step when registering payment methods is to create an account in Kill Bill. This needs to be done once:
   
   [source,bash]
  
positive.code:      -H 'X-Killbill-ApiKey:bob' \
       -H 'X-Killbill-ApiSecret:lazar' \
       -H 'X-Killbill-CreatedBy: creator' \
       --data-binary '{"name":"john","email":"john@foo.com","externalKey":"11-22-33-44","currency":"USD"}' \
       "http://127.0.0.1:8080/1.0/kb/accounts"
  ----
  
  
negative.code:      "http://127.0.0.1:8080/1.0/kb/accounts/268983f2-5443-47e4-a967-b8962fc699c5/paymentMethods?isDefault=true"
  ----
  
  Check our https://github.com/killbill/killbill-litle-demo[Litle demo] for an implementation example.
  
  You can add as many payment methods as needed to a given account (across one or multiple plugins). You can specify for each payment call the payment method to use, or leave it blank to use the default.
  
  Each payment method in Kill Bill has a unique uuid associated to it. Use this uuid to change the default payment method on the account (in this example, the payment method id `a91161b0-d159-11e3-9c1a-0800200c9a66` becomes the default one):
  