Address Attribution and Balance Lookup
Look up any Bitcoin address. Live balance and transaction count from our own bitcoind, plus attribution against a 38.9M-row corpus of exchange proof-of-reserves, OFAC + worldwide sanctions, mining pools, burns, scams, ETF custody, and 10 more sources, joined into a single aggregator view.
Tip: paste any address. Lookup works for legacy P2PKH (1...), P2SH (3...), SegWit (bc1q...), and Taproot (bc1p...) formats.
Or jump to a famous address:
What you'll see
Live balance & activity
Current balance, total received, total spent, transaction count, and any unconfirmed mempool activity. Pulled from our own indexer in NYC.
Every source's view
If three independent sources name the same address, you see all three side by side with their per-source confidence.
Corroboration badge
Where multiple sources agree, the page surfaces it explicitly: "✓ corroborated by N sources." See the cross-source analytics for the full distribution.
Structural validation
Every address is parsed and validated for encoding, checksum, and script type before lookup. Malformed inputs are rejected with a clear error.
Want this as a feed? The Address Monitoring API streams real-time inflow / outflow events on any address you supply (monitor your own cold storage, business hot wallets, or treasury reserves) and on our curated corpus as transactions confirm.