Most fraud detection teams spend months choosing infrastructure, training models, and waiting on engineering cycles before seeing a single signal. Fingerprint is built for a different path.

Cookies are the foundation of most session identification today. The problem is they expire in 7 days, can be cleared in seconds, and tell you nothing about the device itself. A fraudster who clears cookies or opens an incognito window becomes invisible to your stack.

Fingerprint builds device-level IDs that persist across sessions, cookie resets, VPN changes, and incognito mode. The underlying signal is drawn from 100+ hardware, browser, and behavioral attributes that are much harder to spoof than a session cookie. The same device gets the same ID, whether it shows up with a different IP or a freshly cleared browser.

Installation takes one afternoon. The SDK is five lines of JavaScript. Your first visitor ID arrives within minutes of adding your API key. From there, you can pipe signals into your risk engine, trigger webhooks on suspicious behavior, or build a full account takeover detection layer.

Over 27,000 developers have starred Fingerprint on GitHub, and 6,000+ companies rely on it in production, including Booking.com and Coinbase. The free plan covers your first 100,000 API calls with no credit card required.

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