The customer checks out. The wallet might not.

A name check does not tell you anything about an address. If you take payment in cryptocurrency, the party you screened and the wallet the money came from are two separate questions, and until now this site only answered the first. It now answers both.

What it does

Put an address into wallet screening and it is checked against every wallet list we carry at once. A listed address comes back with the chain it is on, why it is flagged, and the sanctioned party behind it where the listing names one. Where there is a party, you can open their full record from the result and see the sanctions listing itself.

A clear address returns the same shape with nothing filled in, so a clean result is never mistaken for a failed request. The screening summary counts what you sent, what was listed and what was clear, which is the line worth keeping in a file note.

Where it fits

The obvious moment is before you release funds: a withdrawal to an address you have not seen before, or a deposit from one. It is also worth running at onboarding, where a customer supplies a wallet they intend to use, and against an address a counterparty gives you for a one-off settlement.

Not every hit is a sanctions designation, and the result says which kind it is. An address published by OFAC against a designated party is a different finding from one reported for ransomware, and the reason on the result is what tells them apart. Read it before treating a hit as a sanctions match.

One thing to get right

This is an exact lookup, not a fuzzy one, so send addresses in the form the source publishes them. An EVM address you hold lowercased will not match a listing published in checksummed form. Normalise against the published value rather than relying on casing being ignored.

From your own systems

The same check runs over the API, one address at a time or in batches, so it can sit inside a withdrawal flow rather than being a thing someone remembers to do. Both endpoints, the full result shape and worked examples are on the wallet screening reference.

The addresses come from three sources, set out with their publishers on the cryptocurrency wallets coverage page.