PureFi

PureFi is a compliance layer for DeFi providing wallet risk scoring, onchain identity checks and pre-trade blocking to trading and lending applications that must meet anti-money-laundering rules. It addresses conventional risk controls that flag addresses only after settlement, when an onchain transfer is already irreversible. Scores draw on address history, funding sources and clustering of related addresses, refreshed on triggering events.

Checks use verifiable credentials and zero-knowledge proofs, so users prove they are unsanctioned and identity-verified without disclosing documents; rules are embedded in pool contracts as a hook that judges eligibility before a swap executes. Screening depth scales with transaction size: small amounts get sanctions checks only, larger ones add wallet scoring and continuous monitoring. Credentials are issued by licensed providers, must be re-verified at expiry, and lapsed ones block new trades.