ZIP Code Distance Match API

{
  "result_count": 3,
  "results": [
    {
      "code_1": "11201",
      "code_2": "10001",
      "distance": 6.203
    },
    {
      "code_1": "11201",
      "code_2": "10301",
      "distance": 11.103
    },
    {
      "code_1": "10001",
      "code_2": "10301",
      "distance": 15.656
    }
  ]
}