How to Screen Payout Wallets Before USDC Leaves Your App
The same trust decision that matters for paid routes also matters before payouts. Before your app sends USDC to an external wallet, check the counterparty and decide whether to allow, review, or stop it.
x402 route gating is the clearest wedge, but payout screening is the same pattern in reverse. Instead of asking whether a payer wallet should be allowed in, you are asking whether a payout wallet should be trusted enough to receive funds.
The Workflow
The practical flow is short:
1. Build the payout candidate
2. Score the destination wallet
3. Apply your allow / review / block policy
4. Only send USDC if the wallet clears policy
5. Log the result for audit or later reviewThat keeps the trust check at the decision point where it belongs, right before money moves.
A Minimal Example
import { DJDAgentScore } from 'djd-agent-score'
const client = new DJDAgentScore({ baseUrl: 'https://djdagentscore.dev' })
const result = await client.getBasicScore('0xDestinationWallet')
if (result.score < 25 || result.recommendation === 'high_risk') {
throw new Error('Do not send payout to this wallet')
}
if (result.score < 46 || result.recommendation === 'flagged_for_review') {
queueForManualReview(result)
}
sendPayout()Why Payout Screening Is Different
When a route serves a request, you risk wasted compute or bad counterparties. When a payout goes out, you risk irreversible fund movement. That means the review bucket matters even more.
- Known good wallets: allow automatically
- Borderline or thin wallets: review before sending
- Obvious red-zone wallets: stop the payout
What To Add After Screening
Once the basic decision is working, the next useful layer is monitoring. Watch the wallets you pay repeatedly, add alerts, and keep a record of why a payout was allowed or stopped. Screening is the wedge. Monitoring and forensics are the operating layer around it.
The Main Point
You do not need a giant risk platform to start. You just need one reliable decision point before USDC leaves your app.
Start with a wallet score lookup, then layer in policy and monitoring.
See The Quickstart