Google Geographic Target Code Search (US, Up to 20 Matches)

{
  "type": "object",
  "required": [
    "country",
    "search",
    "limit"
  ],
  "properties": {
    "limit": {
      "enum": [
        20
      ],
      "type": "integer",
      "default": 20,
      "description": "The most locations returned; only 20 is offered."
    },
    "search": {
      "type": "string",
      "maxLength": 100,
      "minLength": 1,
      "description": "A place name or part of one to match in location names, case-insensitive (a city, state or region name)."
    },
    "country": {
      "enum": [
        "us"
      ],
      "type": "string",
      "description": "The country searched; only \"us\" (the United States) is offered."
    }
  },
  "additionalProperties": false
}

{
  "type": "object",
  "properties": {
    "results": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "location_code": {
            "type": "number",
            "description": "The location's numeric code."
          },
          "location_name": {
            "type": "string",
            "description": "The full location name, comma-separated from place to country."
          },
          "location_type": {
            "type": "string",
            "description": "The kind of location, such as State, DMA Region or City."
          },
          "country_iso_code": {
            "type": "string",
            "description": "The two-letter country code."
          },
          "location_name_parent": {
            "type": "string",
            "description": "The full name of the location it sits in."
          }
        }
      },
      "description": "One entry per matching location, up to 20, in ascending code order."
    }
  },
  "description": "The matching locations, wrapped as `{results: [...]}`."
}