Using tools to check the validity of accounts that do not belong to you is illegal and violates PayPal's terms of service. ✅ Legitimate Ways to Verify or Test PayPal
If your goal is to test a payment integration or verify your own account, use these official methods: How to Test your PayPal Payment Form Paypal Checker.zip
Downloading or running software from untrusted sources labeled as "account checkers" or "crackers" often results in: Using tools to check the validity of accounts