gistfile1.js

// As a param

$.ajax({
  url: "/api/v1/kittens",
  parameters: {name: "Sillycat", breed: "Tiger", token: "4815162342"},
  success: function(){
    // kitten created
  }
});

// Headers

$.ajax({
  url: "/api/v1/kittens",
  parameters: {name: "Sillycat", breed: "Tiger"},
  headers: {X-USERNAME-THING: "waynefan", X-TOKEN-SHIT: "4815162342"},
  success: function(){
    // kitten created
  }
});

// For HTTP Basic Auth

$.ajax({
  url: "/api/v1/kittens",
  parameters: {name: "Sillycat", breed: "Tiger"},
  username: "waynefan",
  password: "ih@tecatz",
  success: function(){
    // kitten created
  }
});