curl --request POST \
  --url https://api.bigdata.com/v1/knowledge-graph/sources \
  --header 'Content-Type: application/json' \
  --header 'X-API-KEY: <api-key>' \
  --data '{
  "query": "MT Newswire",
  "countries": [
    "US",
    "FR",
    "GB"
  ],
  "ranks": [
    "RANK_1",
    "RANK_2",
    "RANK_3"
  ],
  "categories": [
    "Transcripts",
    "Research",
    "Podcast",
    "Newsletters",
    "News",
    "Filings",
    "Expert Interviews"
  ]
}'

{
  "results": [
    {
      "id": "97C483",
      "name": "Personal Finance with Warren Ingram",
      "description": "Personal Finance with Warren Ingram is a program that provides practical advice on money management, including guidance on investing, retirement planning, and wealth creation, through its podcast.",
      "country": "ZA",
      "rank": "RANK_1",
      "retention": "FULL_HISTORY",
      "webpage": "TV and Radio Transcripts",
      "categories": [
        "podcasts"
      ],
      "packages": [
        "podcasts",
        "all"
      ],
      "subscribed": true
    }
  ],
  "metadata": {
    "request_id": "user_2k3Z4SerTUIieyCfQhGR5UF2Af3",
    "timestamp": "2025-09-30T07:23:05.019121+00:00"
  }
}