Overview

Use this endpoint to check if a visitor's IP address is authorized for access through a membership subscription. This is how you implement server-side paywalls for institutional customers like libraries, universities, and corporations.

Example: A visitor from IP address 128.112.45.67 requests your premium content. Your server calls this endpoint to check if that IP is authorized. If subscriptions are returned, the visitor has access. If not, show the paywall.

How IP Matching Works

The endpoint checks if the provided IP falls within any configured IP range on membership subscriptions. Supported formats:

Only subscriptions with type set to membership and a non-empty ip_addresses field are checked.