Bitcoin address checker
Verify a BTC address is real, active and clean before sending or receiving.
Free transaction lookups · Deep AML reports from $5 · See pricing
Before you send Bitcoin, check the address. Our Bitcoin address checker confirms the address format is valid, shows whether it has ever been used, reports the current balance, and screens it against AML risk databases covering sanctions, ransomware, darknet markets and reported thefts.
Address validation
Confirms the format and checksum before you send.
Activity history
First seen, last seen, total received and total sent.
Risk categories
Sanctions, mixer, theft, ransomware and exchange exposure.
Free explorer view
Full transaction lookup at no cost.
Frequently asked
How do I know a Bitcoin address is legit?
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Check that it is valid, has plausible history, and carries no AML flags. This tool does all three.
Can a Bitcoin address be blacklisted?
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Yes. Exchanges and analytics providers maintain blacklists; we surface those flags.
What if the address has no history?
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A brand-new address is not automatically risky, but it also carries no reputation.
Is there an API?
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Yes — see the API page for programmatic address screening.