Kaidn

Fraudsters farm signup bonuses using Gmail dot tricks, plus tags, VPNs, and multi-account devices. Kaidn catches them in one API call. Send a signup, login, trial, or cashout and get back allow, review, or block with plain-English reasons. Rules decide, AI explains. Built for rewards sites, affiliates, games, and small fintechs that big fraud vendors ignore. SDK, REST, and MCP server included. Free for 10,000 events/month, no credit card required.