Liquidation data you cannot buy retroactively
Exchanges publish liquidations as live websocket streams only. There is no "give me last year's liquidations" endpoint anywhere. Whoever wasn't recording on a given day simply doesn't have that day. PerpData records the streams server-side around the clock and serves the archive over REST and MCP.
What's recording
Bybit and OKX all-market liquidation streams are recording continuously today, with more venues as regional infrastructure lands (Binance's stream is silenced for EEA- and US-based listeners, which is an infrastructure problem we're solving, not a data problem). The archive began August 2026 and compounds daily; it is never backfilled, because it can't be, by anyone.
Query it
curl "https://api.perpdata.dev/v1/liquidations/recent?symbol=BTC&limit=100"
Each print carries venue, symbol, side liquidated, price, base quantity, USD value and timestamp: one schema across venues, newest first.
For agents
The get_liquidations MCP tool exposes the same archive: claude mcp add --transport http perpdata https://api.perpdata.dev/mcp. Free tier needs no key; 200 calls/day per IP.
Why record-from-day-one matters
Liquidation clusters mark forced-flow levels, where leverage actually broke. Backtesting against them requires history that exchanges won't hand out later. Every day of recording is a day of data later entrants can't recreate, which is why the archive is the moat and why Pro stays $29/mo flat with commercial use included.