Buckle up. Log into your
Paypal Account . If your business name isn't in the top left corner, then you do not have a business account, and need to upgrade to one. To do so, click the
icon in the top right to go to your settings. Then click
Upgrade to a Business Account under Account Options. Follow prompts to give PayPal information about your business. Once you make it to the business account dashboard, mouse over your name in the upper right corner and choose
Account Settings. Hit
Update next to API access. Scroll down and under NVP/SOAP API integration (Classic), select
Manage API credentials. Keep
Request API signature highlighted and hit
Agree and Submit. Now
Show each credential: API Username, API Password, and Signature, and enter those values below.