Harpie's Background Check API screens any Ethereum address, letting you know if it's been involved in hacking, phishing, and other cybercrime. Our results are human-readable and actionable, giving you and your users peace-of-mind while using the blockchain.

Additionally, our background checks let you know if a contract is associated with a protocol: we have a database of over 800,000 smart contracts, along with their deployer and contract name (ex. Curvefi: 3pool).

This API is powered by our Heuristics Engine, which uses Dune Analytics and other real-time analyses to determine if an address is associated with malicious activity.