Stop fraud before it costs you money
Fake signups, stolen accounts and bonus abuse drain your margin one account at a time. Kaidn checks every signup, login and payout in one API call and answers allow, review or block, with the reason in a sentence.
No credit card. One API call. No sales team to get past.
This reads how your browser renders graphics, audio and text to build a device fingerprint — exactly what Kaidn does for customers. We don’t run it on you without asking.
What it reads →Built for the operators big fraud vendors ignore. No enterprise contracts, no sales calls.
Fraud caught at every step
Every answer says what we found and why, in words your support team could send to the customer. No mystery score.
Fake signups
One person with fifty accounts, throwaway inboxes and rented home connections, stopped at the door.
Account takeovers
A stolen password used from a device and place your real customer has never been.
Card testing & promo abuse
Bulk orders and the same bonus claimed again under a new name.
Cash-outs
A suspicious device or location change right before money leaves your platform.
How it works → · Where it falls down, measured → · Guides by fraud type →
Run a check without an account
Rate limited, no key required. Results appear inline.
Live in five minutes
One POST with the fields you already collect: email, IP, user id. Everything except the event name is optional. Use the npm package, plain REST, or the browser tag.
Ask your fraud data questions in plain English with the Kaidn MCP server.
npx -y @kaidn/mcp
// npm install @kaidn/sdk import { Kaidn } from "@kaidn/sdk"; const kaidn = new Kaidn({ apiKey: process.env.KAIDN_API_KEY }); const { verdict, reasons, reason_text } = await kaidn.score({ event: "cashout", user_id: "u_8231", ip: req.ip, email: user.email, device_id: fingerprint, // from @kaidn/fp in the browser event_country: offer.country, // optional geo expectation }); if (verdict === "block") return deny(reason_text); if (verdict === "review") await queueForReview(user, reasons); // the SDK covers every endpoint: await kaidn.check.ip("3.5.140.1"); await kaidn.batch.score(rows); // bulk, up to 1000 rows await kaidn.label({ label: "chargeback", event_id });
Ready to stop paying fraudsters?
10,000 events every month, free, forever. No credit card.