curl --request POST \
  --url https://api.newscatcherapi.com/v2/sources \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '{
  "lang": "en",
  "countries": "US,CA",
  "topic": "business"
}'

{
  "message": "<string>",
  "sources": [
    "<string>"
  ],
  "user_input": {
    "lang": [
      "<string>"
    ],
    "countries": [
      "<string>"
    ],
    "topic": "<string>"
  }
}