OFAC Web3 Regulation Glossary Part 1

How sanctions regulation applies to Web3, and what it means for decentralized agent payments.

TL;DR

TL;DR: Web3 regulation is the application of existing rules, including OFAC sanctions, to decentralized systems, wallets, and smart contracts. Sanctions obligations apply to Web3 activity the same way they apply to traditional finance.

What Web3 regulation is

Web3 regulation is not a single law but the overlay of existing financial rules onto decentralized infrastructure. OFAC, the Office of Foreign Assets Control, has made clear that sanctions apply to virtual currency, including wallet addresses and, in some cases, smart contracts and decentralized services.

Why it matters for agents

Decentralization does not remove sanctions obligations. An agent that pays a counterparty in stablecoins such as Base/USDC is still required not to transact with a listed person or wallet. Because enforcement is strict liability, intent is not required, and penalties start at $356,000 per violation.

How to comply in Web3

Screen before paying. The sanctionsai.dev API checks a counterparty before an agent pays and returns ALLOW or BLOCK in under 100 ms, covering 947 OFAC-listed crypto wallets and 19,218 SDN names across 16 jurisdictions, synced hourly. Payment rails such as x402, AP2, ACP, and Coinbase AgentKit move money but do not screen. Not documented: any regulatory approvals the product holds.