curl --request POST \
  --url https://chat.sambanova.ai/api/agent/mainagent \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "prompt": "<string>"
}
'

{
  "status": "success",
  "result": "I've created the bar chart...",
  "artifacts": [
    "file-id-123"
  ],
  "thread_id": "thread-abc"
}