Detect VPN, Proxy & Tor in Java

No dedicated call needed — the accessors ride along with a normal lookup.

IpApiClient client = IpApiClient.builder()
        .apiKey(System.getenv("IP_API_IO_KEY"))
        .build();

IpInfo info = client.lookup("185.220.101.1");
var f = info.suspiciousFactors();

System.out.println(f.isVpn());        // VPN service
System.out.println(f.isProxy());      // open / anonymizing proxy
System.out.println(f.isTorNode());    // Tor node
System.out.println(f.isDatacenter()); // hosting / datacenter IP (often a bot)
System.out.println(f.isSpam());       // known spam source
System.out.println(f.isCrawler());    // known crawler / bot
System.out.println(f.isThreat());     // listed on a threat feed

if (f.isVpn() || f.isProxy() || f.isTorNode()) {
    // require step-up verification (CAPTCHA, 2FA)
}

A dedicated check against the live Tor node list, with a count of matching nodes.

var tor = client.torCheck("185.220.101.1");

System.out.println(tor.isTor());        // true
System.out.println(tor.torNodeCount()); // number of matching Tor nodes