Maskbreak
Free fraud detection API. 1,000 requests an hour, no card.
Maskbreak launched on August 28, 2026 with 1 votes, #11,494 of 23,274 launches that month.
What it does
Catch antidetect browsers (Kameleo, GoLogin, Multilogin), VPNs, residential proxies and AI bots that most fraud APIs miss. Free tier, under 40 ms.
Evaluate VPN, proxy and browser signals at signup, login and checkout. Get allow, review or block decisions. Free plan: 10,000 visitor checks a month.
One API call catches bots, fake browsers, VPNs and proxies before they get in. Each check returns allow, review or block. Instant API key. Setup starts in watch mode : it blocks no one until you turn blocking on. Visitor ID — What a site that uses Maskbreak learns about this visit. Live demo, limited checks. Signals indicate risk, not proof of fraud. Your app gets a simple answer: continue, double-check or stop. Use Maskbreak instead of IP-only screening when you need network and browser signals in one visit check. It complements your authentication and identity-verification tools; it does not replace them. Compare scope, features and plans: IPQualityScore , Fingerprint , SEON ,…from maskbreak.com
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