The invisible
bot detection API
for developers and fraud teams
Add frictionless bot and AI detection to your site in 10 lines of code.
export async function attemptSignup({ username, password, eventId }) { // ... const event = await fpServerApiClient.getEvent(eventId); const botDetected = event.bot !== "not_detected"; if (botDetected) { return { success: false, error: "Sign up failed." }; } // ...}- Booking.com logo
- Manus logo
- Dropbox logo
- Plaid logo
- Binance logo
- Resend logo
CAPTCHA was built for a different internet. Now it punishes your real users, breaks AI agents, and lets bad bots through anyway.
Homepage
-
Fake signups
Stop new account fraud, where bots create multiple fake accounts to exploit sign-up bonuses, free trials, or other incentives.
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Bot checkouts
Protect your checkout from coupon abuse, where bots repeatedly redeem a discount code meant for one-per-user use.
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Account takeovers
Identify and block attackers using bots to rapidly test stolen usernames and passwords across many accounts at scale.
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Content scraping
Monitor and block automated scraping that copies pricing, listings, and proprietary content while allowing legitimate crawlers.
Bot detection that doesn't get in the way
of users, agents, or your stack.
Maintain a user experience that is seamless, agent-friendly, and safe against even the most sophisticated malicious bots. Bot Detection is available for the frontend libraries you already use.
- Item
- Rad Orange Kicks · Size 12
- Payment method
- •••• 4242
- Total due
- $99
// checkout.ts
const botDetected = event.bot !== "not_detected";
if (botDetected) {
return {
success: false,
error: "Bot detected. Transaction blocked.",
};
}No challenges. Safe and frictionless UX.
Distinguish helpful automations and malicious bots without forcing obscure, legacy challenges onto humans. Your user experience stays seamless and safe.
- ChatGPT Agentsigned
- Gemini Deep Researchverified
- AdsPower FlowerBrowserunknown
- Cloudflare Radar URL Scannersigned
- Bedrock AgentCoresigned
- Gemini NotebookLMverified
- DuckAssistBotverified
- Browserbase Agentsigned
- Claude-Userverified
- Notte Browsersigned
- Anchor Browsersigned
- ChatGPT-Userverified
- AdsPower SunBrowserunknown
- Manus Agentsigned
- Cloudflare Browser Renderingsigned
Agent-aware. Identify every bot.
AI agents are now part of how the internet works. Fingerprint reliably determines if bots visiting your site should be allowed or blocked, with new bots added regularly.
More signals than just bot detection. One endpoint...
Not all bots are bad. Not all humans are good. Determine the real intent behind your traffic, automated or not, with Fingerprint's bleeding-edge signals.
...that works with your stack.
If your app runs JavaScript, it can run Bot Detection. Use the libraries you already know: Next.js, Angular, Vue, Svelte, or more. Consume the data with any backend.
Deploy rules to block sophisticated bots,
without writing any code.
Use Fingerprint Bot Detection with additional signals to monitor and block more sophisticated fraudsters and attacks on your site.
Maintained and trusted by the best
Bot Detection is built on Fingerprint open-source01 libraries. So powerful, competitors use our signals under the hood.
- Org GitHub stars
- 31.2K+
- Monthly NPM downloads
- 5,400,000+
Even a few bots can destroy confidence in a study. With Fingerprint, we’re able to deliver what we believe is the highest data quality in the market and that trust is fundamental to our growth.
Add invisible bot detection to your site today
Set up in minutes by package manager or CDN. No credit card or sales call required.