Restrict API calls based on request IP address and increase the security of your account by preventing unauthorized API usage. By default, you can call the 2Checkout API from any IP.
All 2Checkout accounts.
- Navigate to Settings » Users » Firewall.
- Specify a static IP address or a range of IP addresses.
- In the Selected Users area, apply the restriction to API (Special).
- Add the IP filter.
- Activate the IP filtering system.