curl --request POST \
  --url https://app.closerx.ai/api/v2/register/telynx/ \
  --header 'Company-Name: <company-name>' \
  --header 'Content-Type: application/json' \
  --header 'api_key: <api-key>' \
  --data '
{
  "telnyx_api_key": "<string>"
}
'

{
  "success": false,
  "errors": [],
  "response": "voizerfreeaccount",
  "message": "Telnyx API key updated successfully"
}