The API is Free to use unless stated otherwise.
API Endpoints
VPN Check
Checks if an IP is a VPN or Proxy
Endpoint: https://api.kismetdev.net/api/vpncheck
Method: GET
Parameters: ip
Example: https://api.kismetdev.net/api/vpncheck?ip=1.1.1.1
Response: {"VPN":true}
/ {"VPN":false}