OFAC screening for NFT gaming

How NFT-based games should screen player wallets before in-game sales and payouts.

TL;DR

TL;DR: An NFT game that sells assets to, or pays winnings to, a blocked wallet violates OFAC. Screen player and recipient wallets against the SDN List before any in-game transfer or payout.

In-game assets are value

NFT gaming turns items, characters, and rewards into tradable value, which means every sale and payout is a transfer of value under OFAC. The Office of Foreign Assets Control is a strict liability regime: intent is not required, so a game operator that pays a listed wallet can face penalties starting at $356,000 per violation.

Where to screen in the game loop

The realistic checkpoints are the primary sale or mint, the secondary marketplace settlement, and prize or earnings payouts. The 50 Percent Rule extends the block to entities 50 percent or more owned by a blocked person, so a check should resolve the entity behind a wallet when the recipient is a team or guild, not just match the address string.

A call that fits the game server

agentmail, the screening API at sanctionsai.dev, runs the check in one HTTP call under 100 ms, returning clean (ALLOW) or flagged (BLOCK) against 947 OFAC-listed crypto wallets and 19,218 SDN names across 16 jurisdictions, synced hourly. A game server can call it before releasing a payout or completing a sale, holding flagged wallets for review.