Check a Bitcoin address before you send

Paste any BTC address to see its risk score, which entity it belongs to, where its funds came from and who it transacts with. Bitcoin transactions cannot be reversed, so the check is only useful before you press send.

Trusted by crypto users worldwide β€’ Bitcoin, Ethereum, BNB Chain and TRON

Free Β· No account required Β· Bitcoin (BTC)

What a Bitcoin address looks like

Confirm the address you were given matches one of these shapes before sending. An address in a different format belongs to another network.

  • bc1q… β€” native SegWit (bech32)
  • bc1p… β€” Taproot
  • 3… β€” P2SH / nested SegWit
  • 1… β€” legacy P2PKH

What the check looks for on Bitcoin

Every result includes a risk score, entity attribution, a source-of-funds breakdown and counterparties. These are the patterns that matter most on this chain.

Mixers and coinjoin exposure

Bitcoin remains the primary chain for mixing services. We flag funds arriving from sanctioned mixers and report the share of an address balance traceable to them.

Ransomware and darknet market payments

A large share of documented Bitcoin crime involves ransomware payment addresses and darknet marketplace deposits, both of which appear in public sanctions and law-enforcement listings.

Address clustering

Because Bitcoin uses UTXOs, addresses controlled by one entity can often be grouped together. A fresh-looking address may already belong to a cluster with a history.

How to read the result

Risk score

A 0–100 score split into direct exposure (the address itself) and indirect exposure (who it received from). A low score means no known indicators were found β€” not a guarantee of safety.

Entity attribution

Where an address can be linked to a known service β€” an exchange, a bridge, a merchant β€” the result names it and shows the confidence behind that label.

Source of funds

A breakdown of where the balance came from. This is reported separately from the address score, because clean behaviour funded by tainted money still carries risk.

Counterparties

The addresses it trades with most, with amounts and transaction counts, so you can judge whether the pattern matches what you were told.

Bitcoin address checks β€” common questions

Is the Bitcoin address check free?

Yes. Checks are free with no account, no API key and no usage limit. PublicAML is operated by the PublicAML Foundation, a Delaware non-profit.

Can I recover Bitcoin I already sent to a scammer?

No. Bitcoin transactions are irreversible and nobody can undo them. You can report the address so others are warned, and the report may help investigators trace where the funds moved.

Does a low risk score mean an address is safe?

It means no risk indicators were found in the data we hold. It is not a guarantee. A newly created address used by a scammer may have no history at all, so treat a low score as the absence of known bad signals rather than proof of trustworthiness.