curl --request GET \
  --url https://prod.featherhq.com/calls \
  --header 'x-api-key: <api-key>'

{
  "calls": [
    {
      "id": "<string>",
      "status": "INITIATED",
      "callStartedAt": "2023-11-07T05:31:56Z",
      "callEndedAt": "2023-11-07T05:31:56Z",
      "callEndedReason": "NO_ANSWER",
      "callDuration": 123,
      "outbound": true,
      "callEndedBy": "USER",
      "firstName": "<string>",
      "lastName": "<string>",
      "phone": "<string>",
      "email": "jsmith@example.com",
      "summary": "<string>",
      "recordingUrl": "<string>",
      "transcript": [
        {
          "id": 123,
          "created_at": "<string>",
          "text": "<string>",
          "user": "<string>"
        }
      ],
      "variables": {},
      "customerLeadId": "<string>",
      "customerMetadata": {},
      "disclosures": [
        "<string>"
      ],
      "createdAt": "2023-11-07T05:31:56Z",
      "scheduledAt": "2023-11-07T05:31:56Z",
      "tag": "SINGLE",
      "workflowId": "<string>",
      "workflowExecutionId": "<string>"
    }
  ],
  "nextCursorId": {
    "createdAt": "2023-11-07T05:31:56Z",
    "id": "<string>"
  }
}