Why this is a different kind of check
Most of what Veriql does is read the chain and measure it. A sanctions designation cannot be measured, because it is not a property of an account. It is an act of a government, recorded in a list, and no amount of reading the blockchain will ever reveal it. That makes it the one signal here that has to come from an external authority, and the authority is the US Treasury's Office of Foreign Assets Control.
It is also the only checker on this site with no commercial vendor in the path. We mirror the SDN list into our own database and refresh it daily, so this page cannot be throttled by somebody else's rate limit and cannot fail because an API went down. Every answer carries the date our copy was last refreshed, because a negative result is only ever true as of a date.
What we keep separate, and why
A designation
Published by a government, with a date and a stated reason. For a US person or business, transacting with it is prohibited. This is a legal status, so it is reported on its own terms and never folded into a risk score.
A Drain Watch listing
A report that an address was observed draining wallets or running a scam. Serious, and a completely different claim. Reported separately, so neither statement borrows the other's weight.
Not found
Reported with the refresh date attached. Designations are added continuously, so an address can be listed the day after our copy was taken, and we would rather show you the date than imply a freshness we cannot promise.
No list for that chain
The SDN list is published per asset and includes Monero and XRP, which we have no tooling for. For those we say we have no list to check rather than reporting nothing found, because a negative about a list we never read is a false clean result.
Where the data comes from
The underlying list is published by the US Treasury and is a United States federal government work, which is not subject to copyright. We ingest it through a public mirror that tracks the official publication and normalises the address formats, and we credit it openly. The addresses are attributed to the specific asset file they appear in, which matters more than it sounds: the list is organised by asset rather than by chain, so the USDT file alone contains both Ethereum and Tron addresses, and treating that file as a single chain would silently discard most of it.
This page is a factual check against a public list. It is not legal advice, it is not a compliance report, and it does not establish anything about the person behind an address. If you need a screening result you can rely on commercially, you need a regulated provider and a documented process, not a free web tool.
Questions people ask
How do I check if a crypto address is sanctioned?
Paste it above. We check it against our mirror of the US Treasury Specially Designated Nationals list, which is the list that actually carries legal weight, and we show the date our copy was last refreshed so you know how current the answer is. It covers Ethereum and other EVM chains, Bitcoin, Solana and Tron addresses, and it is free with nothing to connect.
What is the OFAC SDN list?
It is the sanctions list maintained by the US Treasury's Office of Foreign Assets Control. When an address is added to it, US persons and businesses are prohibited from transacting with it, and most exchanges will freeze a deposit that can be traced back to it. It is published by a government as a legal designation, which is a different kind of claim from a scam report, and this page keeps the two apart for that reason.
Is a sanctioned address the same as a scam address?
No, and treating them as the same weakens both claims. A sanctions designation is a legal act by a government, with a date and a published reason. A scam listing is a report that somebody observed an address doing something harmful. An address can be either, both, or neither. This tool reports a designation as a designation and a Drain Watch listing as a listing, and never blends them into a single risk number.
What happens if I accidentally send funds to a sanctioned address?
For a US person or business it is potentially a sanctions violation regardless of intent, and the practical consequence is usually that the funds are gone and the receiving side is frozen. If it has already happened, the standard advice is to stop, keep the transaction records, and speak to a lawyer who handles sanctions matters. This page is a factual check against a public list and it is not legal advice.
How current is your copy of the list?
It refreshes daily on a schedule, and the page prints the date of the last refresh next to every answer rather than claiming to be live. That matters because a negative result is only ever true as of a date: designations are added continuously, and an address can be listed the day after our copy was taken. We would rather show you the date than imply a freshness we cannot promise.
Do you check addresses on every blockchain?
We check the chains we hold a list for: EVM chains, Bitcoin, Solana and Tron. The SDN list is published per asset rather than per chain and includes assets we have no tooling for, such as Monero and XRP. For an address on one of those, this tool says it has no list to check rather than reporting nothing found, because reporting a negative about a list we never consulted would be a false clean result.