curl --request PUT \
  --url https://api.zudu.ai/api/agents/upsert \
  --header 'Content-Type: application/json' \
  --header 'X-API-KEY: <api-key>' \
  --header 'X-API-SECRET: <api-key>' \
  --data '
{
  "agent_name": "My Agent"
}
'

{
  "message": "Agent created successfully",
  "status": "success",
  "error": null,
  "data": {
    "operation": "created",
    "agent_id": "agent_12345678-1234-1234-1234-123456789012",
    "organization_id": "org_xyz789",
    "agent": {
      "agent_id": "agent_12345678-1234-1234-1234-123456789012",
      "organization_id": "org_xyz789",
      "agent_name": "My Agent",
      "begin_message": "Hello! How can I help you?",
      "created_at": "2025-01-15T10:30:00",
      "updated_at": "2025-01-15T10:30:00"
    }
  }
}