Watch the video below to see how to set up the stripe payments
Stripe developer link : https://dashboard.stripe.com/developers
Webhook URL : https://yourdomain.com/recurring/stripe/hook

How to get PayPal Api username, password and signature information

You'll need to create an API username for PayPal . You can access PayPal via API only if you have a PayPal Premier / Business / Website Payments Pro account.

Follow these steps:

1. Log in to your PayPal Business account.
2. Click the My Account tab.
3. Click the Profile tab. If you haven't already done so, you need to verify your account before requesting API credentials.
4. Click Request API credentials under Account information.
5. Click Set up PayPal API credentials and permissions under Option 1.
6. Click Request API Credentials.
7. Click Request API signature.
8. Click Agree and Submit.
9. Copy and paste the API username, password, and signature into your administration screen. as show in the image below

Set up Paypal Recurring Credentials

Watch the video below to see how to set up the paypal recurring payments
Paypal developer link : https://developer.paypal.com/developer/
Webhook URL : https://yourdomain.com/recurring/paypal/hook