NiX API is a powerful anti-proxy, anti-fraud, and IP reputation lookup API. It uses the NiX database at cli.nixapi.com to determine IP country/region/city, data center details, satellite provider details, open proxy details, and Tor network association.
You can download it from the following link: https://packetstormsecurity.com/files/download/108040/NIX_API_CLI.txt
Source: https://packetstormsecurity.com/files/108040/NiX-API-Script.html