curl --request POST \
  --url https://crm-demo.cynopsis.co/oauth/token \
  --header 'Content-Type: application/x-www-form-urlencoded' \
  --data grant_type=client_credentials \
  --data client_id=your_client_id \
  --data client_secret=your_secret_key

{
  "access_token": "<string>",
  "token_type": "Bearer",
  "expires_in": 123,
  "scope": "<string>"
}