Looking for logging into the Paypal Api site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Paypal Api site. After that you can login as usual with your login credentials.
https://developer.paypal.com/
https://www.paypal.com/login
https://www.paypal.com/in/smarthelp/article/how-do-i-find-my-sandbox-api-credentials-ts1500
https://www.braintreepayments.com/features/paypal
https://www.braintreepayments.com/
https://www.sitepoint.com/implement-user-log-paypal/
https://www.putler.com/support/faq/how-to-get-paypal-api-username-password-and-signature-information/
https://www.formget.com/paypal-oauth/
https://support.teachable.com/hc/en-us/articles/360001353072-Custom-Payment-Gateways
https://stackoverflow.com/questions/29429344/paypal-login-with-java-rest-api
https://docs.easydigitaldownloads.com/article/1330-how-to-get-paypal-api-keys
https://stackoverflow.com/questions/17392388/paypal-api-login-stopped-working
https://help.chartmogul.com/hc/en-us/articles/204991261-How-to-connect-PayPal-to-ChartMogul