US ZIP Code Location Lookup

{
  "type": "object",
  "required": [
    "postal_code",
    "country_code"
  ],
  "properties": {
    "postal_code": {
      "type": "string",
      "minLength": 1,
      "description": "The five-digit US ZIP code to look up."
    },
    "country_code": {
      "enum": [
        "US"
      ],
      "type": "string",
      "default": "US",
      "description": "The country of the ZIP code; only \"US\" is offered."
    }
  },
  "additionalProperties": false
}

{
  "type": "object",
  "properties": {
    "places": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "name": {
            "type": "string",
            "description": "The place name (a city or town)."
          },
          "state": {
            "type": "string",
            "description": "The state's full name."
          },
          "latitude": {
            "type": "number",
            "description": "Approximate latitude of the place, in decimal degrees."
          },
          "longitude": {
            "type": "number",
            "description": "Approximate longitude of the place, in decimal degrees."
          },
          "state_abbreviation": {
            "type": "string",
            "description": "The state's two-letter abbreviation."
          }
        }
      },
      "description": "One entry per place the ZIP code covers."
    },
    "postal_code": {
      "type": "string",
      "description": "Echoes the requested ZIP code."
    },
    "country_code": {
      "type": "string",
      "description": "The two-letter country code."
    },
    "country_name": {
      "type": "string",
      "description": "The country's name."
    }
  },
  "description": "The places a US ZIP code covers."
}