Whale Radar
The Whale Radar scans every transaction in the most recent Bitcoin blocks and lists the ones that moved at least 10, 50, 100, or 500 BTC. It reads full block summaries from mempool.space's public API in your browser — so what you see is complete coverage of the covered window, not a sample. If the table says there was no 500 BTC move in the last hour, there wasn't one.
Where an input or output address has an exact match in our
open label directory, the row shows the entity
(for example an exchange hot wallet) and whether it appeared on the sending (in)
or receiving (out) side. No match means no guess — most addresses are
unlabeled, and that is the honest default. To decode a specific transaction's structure, paste its txid into
Brief, or start with
reading large transactions and
what is a whale.
A new block arrives roughly every 10 minutes; the radar re-checks for one every minute and scans it once. Dollar values use CoinGecko's public price API — approximate, not guaranteed.
Disclaimer: Not investment advice. Not trading signals. Large transfers do not imply bullish or bearish intent. See full disclaimer.
| txid | BTC | USD (approx) | sat/vB | block | age | labels |
|---|---|---|---|---|---|---|
| Scanning recent blocks… | ||||||
Uses mempool.space block summaries + CoinGecko price. Label matches are exact-address only, from the open directory — "—" means no public label, not "nothing interesting". Click a txid to verify on mempool.space. Methodology →
Mini glossary
- Block —
- Batch of confirmed transactions, added roughly every 10 minutes.
- sat/vB —
- Fee rate the sender paid; affects confirmation priority, not "whale score."
- UTXO —
- Unspent output; Bitcoin's unit of ownership on-chain.
- Output value —
- The BTC column sums a transaction's outputs; change back to the sender is included. See reading large transactions.