OFAC Sanctions Screening for DeFi Protocols

By agentmail team · 2026-07-18

Answer: DeFi Protocols agents screen counterparties against the OFAC SDN list (19,086 names, 782 crypto wallets, 16 embargoed jurisdictions) via a single API call before every payment. A "clean": true response means proceed; "clean": false means halt. The check runs in under 100ms and the free tier covers 5 checks/day with no API key.

Why do DeFi Protocols agents need OFAC sanctions screening?

DeFi protocols need to screen connecting wallets against the OFAC SDN list before allowing deposits, swaps, or withdrawals. agentmail gives you a sub-second wallet check that fits inside your frontend's connect-wallet flow.

OFAC enforcement against DeFi protocols (Tornado DAO, etc.) established that on-chain services cannot ignore sanctioned addresses. A pre-interaction wallet screen is the minimum control that protects your protocol.

How does sanctions screening work for DeFi Protocols agents?

Wire the screen into your wallet-connect handler. Free tier: 5 checks/day, no signup. Production from $19/mo.

Example: screen a wallet before paying

curl "https://sanctionsai.dev/sanctions?wallet=0x098B716B8Aaf21512996dC57EB0615e2383E2f96"

Real OFAC data. Free tier: 5 checks/day, no API key.

What exactly does agentmail screen for defi protocols agents?

• 782 OFAC-sanctioned crypto wallets across Ethereum, Bitcoin, Solana, and Tron — refreshed daily from US Treasury and vile/ofac-sdn-list
• 19,086 Specially Designated Nationals with fuzzy name matching for aliases, transliterations, and alternative spellings
• 16 embargoed jurisdictions including comprehensive sanctions on Cuba, Iran, North Korea, and Syria
• Sub-100ms response so the check fits inline in any payment path without degrading the agent experience
• Automatic audit trail with timestamp, subject, result, and SDN list version for every screen

Related resources

• OFAC screening for AI agents \u2014 general agent compliance guide
• What is the OFAC SDN list?
• What is strict liability?
• OFAC violation costs for defi protocols agents
• How to set up OFAC screening
• How to screen a wallet before your agent pays
• agentmail vs Chainalysis \u2014 pricing and feature comparison