Request a PayPal API signature
1. Open API section in settings
Log in to your PayPal business account and click on Profile and open your Account settings.
You’ll see the page showed below. Click on My selling tools and then on Update in the API access row.
2. Request API access
Click on the “Update” link next to the API Access section
3. Manage API credentials
Scroll down to NVP/SOAP API integration (Classic) and click on “Manage API credentials”.
4. Confirm request
Select Request API signature and click on “Agree and Submit”.
You’ll then see your API signature data. Click on “Show” to see the actual values.
Add this information to your landing page. Your users will now be able to make payments using PayPal.