curl --request GET \
  --url https://www.chatbase.co/api/v2/agents/{agentId}/sources/summary \
  --header 'Authorization: Bearer <token>'

{
  "links": {
    "count": 123,
    "size": 123
  },
  "files": {
    "count": 123,
    "size": 123
  },
  "qnas": {
    "count": 123,
    "size": 123
  },
  "notionPages": {
    "count": 123,
    "size": 123
  },
  "texts": {
    "count": 123,
    "size": 123
  },
  "zendeskTickets": {
    "count": 123,
    "size": 123
  },
  "salesforceCases": {
    "count": 123,
    "size": 123
  },
  "shouldRetrain": true
}