# Get Countries

The operation fetches list of supported destination countries for a provided carrier and origin country. If query parameters are not provided, it will default to `USPS` as carrier and `US` as origin country.

Endpoint: GET /api/v1/countries
Version: 1.0.0
Security: bearerAuth

## Query parameters:

  - `carrier` (string)
    The carrierID, a unique identifier given to an individual carrier.

  - `originCountryCode` (string)
    The Source Country. The two-character ISO country code for the country where the Shipment originates.

## Header parameters:

  - `X-PB-Developer-Partner-Id` (string)
    This is the Developer Partner ID. When the developer is the only partner, this field is not required.

## Response 200 fields (application/json):

  - `countries` (array)

  - `countries.countryCode` (string)
    The two-character ISO Code of the country from this ISO country list.  The country in which the address is located. Use ISO 3166-1 Alpha-2 standard values. For best results this should be included, especially if the country name does not appear in any of the unparsedAddressLines.
    Example: TV

  - `countries.countryName` (string)
    The name of the country.
    Example: Tuvalu

## Response 400 fields (application/json):

  - `errorCode` (string)
    Error code(s) that appear due to HTTP  400- Invalid or Bad Request, e.g., validation-error.
    Example: validation_error

  - `errorDescription` (string)
    The HTTP 400 Bad Request response status code indicates that the server cannot process the request due to something that is perceived to be a client error (e.g., malformed request syntax, invalid request message framing, or deceptive request routing).
    Example: string

  - `additionalCode` (string)
    A unique identifier for the error, for example 1101055, 0100008, or 1021126.

  - `additionalInfo` (string)
    This is an additional information about the error. This error 'Invalid Request' might appear due to invalid dimension, weight, or serviceID, or if the information is missing.

  - `additionalParameters` (array)

## Response 401 fields (application/json):

  - `message` (string, required)
    This is HTTP 401 Unauthorized response status code, which indicates that the client request has not been completed because it lacks valid authentication credentials for the requested resource.

## Response 500 fields (application/json):

  - `message` (string, required)
    This is HTTP 500 Internal Server Error response status code, which indicates that the server encountered an unexpected condition that prevented it from fulfilling the request.