GuardianStack is the device intelligence platform for visitor intent, acting as the defense layer between off-chain activity and onchain execution. We reduce fraud, block bots, and help protect liquidity with industry-leading accuracy, even when users are anonymous.
While traditional smart contracts are "blind" to the nature of the caller, allowing scripts to bypass frontends and exploit protocols directly, GuardianStack acts as a Security Oracle. By leveraging cryptographic Signature-Based Validation, we help ensure that every smart contract interaction - whether a stablecoin transfer, an NFT mint, or a DeFi claim - passes a rigorous check for automation and risk signals before it can execute onchain.
Core Technology & Capabilities
GuardianStack collects 100+ identification signals to assign a stable visitor ID to every user, maintaining persistence across sessions even if they use VPNs, proxies, or incognito mode. We combine this with smart signals to detect:
Solving Web3’s Hardest Problems
GuardianStack enables businesses to "gate" smart contract functions effectively:
Integration & Trust
Developers can integrate GuardianStack via lightweight SDKs. Our infrastructure is production-ready, GDPR/CCPA compliant, and supports high-volume enterprise needs with 1M+ monthly detections.
GuardianStack: Real Devices. Zero Bots. The Security Layer for the Next Generation of Finance.
Play-to-earn economies are highly vulnerable to automated gameplay and multi-accounting that drain ecosystem treasuries. GuardianStack validates that gameplay is occurring on a unique, non-virtualized device. This distinguishes between genuine player behavior and script-driven farms, preserving the sustainability of the game's economy.
Liquidity mining and airdrops often face "Sybil attacks," where bad actors generate hundreds of wallets to siphon rewards intended for the community. GuardianStack allows protocols to enforce "one-device-one-reward" rules. By detecting virtualized environments and rate-limiting claims per physical device, you ensure incentives aren't drained by industrialized farming operations.
Wash trading distorts market data when users trade with themselves to artificially inflate asset prices. GuardianStack addresses this by linking transactions to a persistent visitor ID rather than just a wallet address. Platforms can automatically detect if a buyer and seller share the same device fingerprint and block the transaction, ensuring authentic volume and protecting community trust.
During high-demand mints or IDOs, automated scripts (bots) frequently buy up the entire supply in milliseconds. GuardianStack gates the smart contract with a cryptographic signature that certifies the request isn't coming from a known automation tool. This blocks high-risk bot behavior and enforces purchase limits per device, guaranteeing a fair launch for legitimate participants.
Merchants utilizing crypto or traditional payments face significant losses from stolen credentials and "friendly fraud" chargebacks. GuardianStack helps secure the checkout by combining visitor IDs with geolocation and velocity signals. We detect high-risk behaviors - such as a single device attempting payments with multiple cards - and block fraudulent orders instantly, reducing chargeback rates and manual reviews.
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