Coinbase Watcher — Codalata

Watches every Coinbase USD market and alerts when trading volume spikes hard — a “whale” moving in. Alerts pop a banner here; opt into email to catch them with the tab closed.

527 total alerts

7h ago last whale

Live · 6m ago

7h ago

BLAST · $0.00003184 | 5m vol +63.08% | 24h vol +84.95%

2026-10-17 02:15 UTC Cooldown

5m USD volume: 185,864.81 (+63.08%) 24h USD volume: 1,256,977.63 (+84.95%) https://www.coinbase.com/advanced-trade/spot/BLAST-USD

7h ago

BLAST · $0.00002940 | 5m vol -13.34% | 24h vol +85.86%

2026-10-17 02:05 UTC No subscribers

5m USD volume: 129,035.95 (-13.34%) 24h USD volume: 971,032.03 (+85.86%) https://www.coinbase.com/advanced-trade/spot/BLAST-USD

What counts as a whale

The watcher fetches these thresholds every cycle. SuperAdmins manage them in the admin panel.

Runtime

Setting	Value	What it does
`interval_seconds`	240	Seconds between watcher cycles.

Thresholds

Setting	Value	What it does
`max_age_hour_threshold`	48	Hours -- data points older than this are dropped from the merge.
`min_24h_volume_threshold`	750000	Minimum USD 24-hour volume for a coin to be alert-eligible.
`min_5m_volume_threshold`	70000	Minimum USD 5-minute volume for a coin to be alert-eligible.
`min_active_threshold`	10	Minutes -- a coin needs a data point this recent to count as active.
`min_occurrence_threshold`	50	Minimum number of data points a coin needs to be merged.
`rank_pull_threshold`	50	Top-N coins by volume are always pulled every cycle.

Whale

Setting	Value	What it does
`whale_24h_vol_percent_change`	32	Alert when summed 24-hour USD-volume percent change exceeds this.
`whale_5m_vol_percent_change`	9000000	Alert when summed 5-minute USD-volume percent change exceeds this.