curl --request GET \
  --url https://data-api.sovfixer.com/api/v1/datasources/{code} \
  --header 'Authorization: <api-key>'

{
  "config": {
    "base_output_fields": {},
    "excluded_us_states": [
      "<string>"
    ],
    "geocode_confidence_required": 123,
    "geocode_precision_required": 123,
    "optional_attrs": [
      "<string>"
    ],
    "output_fields": {},
    "required_attrs": [
      "<string>"
    ],
    "requires_credentials": true,
    "source_code": "<string>",
    "source_name": "<string>",
    "supported_countries": [
      "<string>"
    ],
    "supported_us_states": [
      "<string>"
    ],
    "non_supported_input_values": {}
  }
}