Create a rule
- 
Log in to the Cloudflare dashboard ↗, and select your account and domain.
 - 
Go to Security > WAF > Tools.
 - 
Under IP Access Rules, enter the following details:
- For Value, enter an IP address, IP range, country code/name, or Autonomous System Number (ASN). For details, refer to Parameters.
 - Select an action.
 - For Zone, select whether the rule applies to the current website only or to all websites in the account.
 - (Optional) Enter a note for the rule (for example, 
Payment Gateway). 
 - 
Select Add.
 
Use the Cloudflare API to programmatically create IP Access rules. For more information, refer to Get IP Access rules.