curl --request GET \
  --url https://api.carecycle.ai/v2/sources/performance \
  --header 'x-api-key: <api-key>'

{
  "sources": [
    {
      "sourceId": "<string>",
      "name": "<string>",
      "leads_dialed": 123,
      "contact_rate": 123,
      "transfer_rate": 123,
      "total_usage_cost": 123,
      "cost_per_transfer": 123,
      "total_calls": 123,
      "billable_calls": 123,
      "billable_percentage": 123,
      "spend": 123,
      "new_transfers": 123,
      "new_calls": 123,
      "new_transfer_percentage": 123,
      "appointment_transfers": 123,
      "appointment_calls": 123,
      "appointment_transfer_percentage": 123,
      "total_transfers": 123,
      "total_transfer_percentage": 123,
      "billable_transfers": 123,
      "billable_transfer_rate": 123,
      "converted_calls": 123,
      "transfer_conversion_rate": 123,
      "cost_per_acquisition": 123
    }
  ],
  "stateBreakdown": [
    {
      "state": "<string>",
      "leads_dialed": 123,
      "contact_rate": 123,
      "transfer_rate": 123
    }
  ]
}