# FingerprintIQ > Device intelligence for the modern web. Fingerprint browsers, classify API callers, and track CLI usage. FingerprintIQ provides 41+ signals with 99.2% identification accuracy and sub-50ms response times at the edge. Three SDKs cover three trust problems: Identify for browsers, Sentinel for API callers (classify AI agents vs. browsers vs. CLI tools), and Pulse for CLI/agent usage analytics. ## Product - [Home](https://fingerprintiq.com/): Product overview and positioning - [Products](https://fingerprintiq.com/products): Identify, Sentinel, Pulse - [Pricing](https://fingerprintiq.com/pricing): Plans with permanent free tier - [Live Demo](https://fingerprintiq.com/demo): Real-time signal collection ## Features - [Server-Side Signals](https://fingerprintiq.com/features/server-signals): Unforgeable signals captured before JavaScript executes - [Web3 Intelligence](https://fingerprintiq.com/features/web3-intelligence): Native wallet detection and Sybil risk scoring - [Bot Detection](https://fingerprintiq.com/features/bot-detection): Multi-layer bot identification without CAPTCHAs - [Device Identification](https://fingerprintiq.com/features/device-identification): Persistent visitor identity across sessions - [Edge Performance](https://fingerprintiq.com/features/edge-performance): Sub-10ms identification at 300+ global PoPs - [Sentinel — API Caller Classification](https://fingerprintiq.com/features/sentinel): Know exactly who is calling your API - [Pulse — CLI Analytics](https://fingerprintiq.com/features/pulse): Usage analytics for CLI tools, without the privacy tradeoffs - [Privacy First](https://fingerprintiq.com/features/privacy-first): Zero PII storage, full transparency ## Signals - [VPN Detection](https://fingerprintiq.com/signals/vpn): Detect active VPN connections in real-time - [Datacenter ASN](https://fingerprintiq.com/signals/datacenter): Identify traffic originating from hosting providers - [Tor Exit Node](https://fingerprintiq.com/signals/tor): Detect traffic from the Tor anonymity network - [Residential Proxy](https://fingerprintiq.com/signals/residential-proxy): Detect traffic routed through residential proxy networks - [IP Blocklist](https://fingerprintiq.com/signals/ip-blocklist): Check IPs against known threat intelligence feeds - [TLS Anomaly](https://fingerprintiq.com/signals/tls-anomaly): Detect browser spoofing via TLS fingerprint analysis - [Headless Browser](https://fingerprintiq.com/signals/headless): Detect Selenium, Puppeteer, and Playwright automation - [Browser Tampering](https://fingerprintiq.com/signals/tampering): Detect when browser APIs have been overridden - [Incognito Mode](https://fingerprintiq.com/signals/incognito): Detect private browsing mode - [Developer Tools](https://fingerprintiq.com/signals/dev-tools): Detect when browser DevTools are open - [Brave Farbling](https://fingerprintiq.com/signals/brave-farbling): Detect Brave browser's fingerprint randomization - [VM Detection](https://fingerprintiq.com/signals/vm): Detect virtual machine environments - [Android Emulator](https://fingerprintiq.com/signals/emulator): Detect Android emulator environments - [Rooted Device](https://fingerprintiq.com/signals/rooted): Detect rooted or jailbroken devices - [Good Bot](https://fingerprintiq.com/signals/bot-good): Identify legitimate search engine crawlers and monitoring services - [Bad Bot](https://fingerprintiq.com/signals/bot-bad): Detect malicious and suspicious automated traffic - [High-Activity Device](https://fingerprintiq.com/signals/high-activity): Detect unusually high visit frequency from a single device - [Geolocation Spoofing](https://fingerprintiq.com/signals/geo-spoofing): Detect inconsistencies between claimed and actual location - [Wallet Detected](https://fingerprintiq.com/signals/wallet-detected): Detect crypto wallet browser extensions - [Multi-Wallet Device](https://fingerprintiq.com/signals/multi-wallet): Detect multiple wallet extensions on a single device - [Sybil Risk](https://fingerprintiq.com/signals/sybil-risk): Score devices for potential Sybil attack behavior ## Use Cases - [Fraud Prevention](https://fingerprintiq.com/use-cases/fraud-prevention): Stop fraudsters before they act - [Airdrop Protection](https://fingerprintiq.com/use-cases/airdrop-protection): Defend token distributions from Sybil farms - [Account Security](https://fingerprintiq.com/use-cases/account-security): Protect user accounts from unauthorized access - [Bot Mitigation](https://fingerprintiq.com/use-cases/bot-mitigation): Distinguish humans from automated traffic - [Paywall Enforcement](https://fingerprintiq.com/use-cases/paywall-enforcement): Prevent free-tier abuse and content theft - [Promo Abuse Prevention](https://fingerprintiq.com/use-cases/promo-abuse): Stop serial coupon and trial abusers - [API Security with Sentinel](https://fingerprintiq.com/use-cases/sentinel-api-security): Classify every API caller before your app logic runs - [CLI Analytics with Pulse](https://fingerprintiq.com/use-cases/pulse-cli-analytics): Understand how developers use your CLI tool ## Background - [What is Fingerprinting?](https://fingerprintiq.com/about/fingerprinting): Technical guide to device identification - [Accuracy](https://fingerprintiq.com/about/accuracy): How we achieve 99.2% identification accuracy - [Privacy](https://fingerprintiq.com/about/privacy): How we handle data responsibly ## Developer Resources - [Documentation](https://docs.fingerprintiq.com): Full developer docs, SDK reference, and guides - [Docs llms.txt](https://docs.fingerprintiq.com/llms.txt): AI-friendly doc index - [OpenAPI Spec (JSON)](https://fingerprintiq.com/v1/openapi.json): Machine-readable API spec - [AI Plugin Manifest](https://fingerprintiq.com/.well-known/ai-plugin.json): ChatGPT plugin descriptor - [Complete Docs as Text](https://fingerprintiq.com/llms-full.txt): All documentation in one file