# Liquidation stats · API reference · Femtos

> Totals, per coin, per time bucket and the largest, over a window. GET /v1/liquidations/stats on HyperCore: parameters, response fields and a live call per layer.

- Base URL: `https://api.femtos.xyz/v1` (REST) · `wss://api.femtos.xyz/v1/ws` (WebSocket) · MCP: `https://api.femtos.xyz/mcp`
- Auth: `Authorization: Bearer $FEMTOS_KEY`. Free key: https://femtos.xyz/account/new (browser), or with
  no browser: `GET https://femtos.xyz/accounts/agent/challenge`, solve its proof of work, then `POST https://femtos.xyz/accounts/agent/signup`
  (https://femtos.xyz/agents.md#agent-onboarding)
- Decimals are exact strings, times Unix milliseconds, addresses lowercase `0x`
- Whole API in one file: https://femtos.xyz/agents.md · OpenAPI: https://api.femtos.xyz/v1/openapi.json · Index: https://femtos.xyz/llms.txt
- Page with live calls: https://femtos.xyz/reference/liquidation-stats

## Liquidation stats — GET `/v1/liquidations/stats`

Totals, per coin, per time bucket and the largest, over a window.

Layers: HyperCore. Not on Elysium or HyperEVM: served on HyperCore only.
Page with live calls: https://femtos.xyz/reference/liquidation-stats?layer=hypercore

| Param | In | Example or values | Meaning |
|---|---|---|---|
| `window` | query | `1h`, `24h`, `7d`, `30d` | Window |
| `coin` | query | (optional) | One coin |

```bash
curl -H "Authorization: Bearer $FEMTOS_KEY" "https://api.femtos.xyz/v1/liquidations/stats?window=24h"
```

| Field | Type | Meaning |
|---|---|---|
| `total` | object | Over the window: {notional, count, accounts, longNotional, shortNotional, market, backstop} |
| `byCoin[]` | object | Largest first (30): {coin, notional, count, longNotional, shortNotional} |
| `buckets[]` | object | bucketMs apart: {t, longNotional, shortNotional, count} |
| `largest[]` | object | 10 largest (same shape as /api/liquidations): {block, time, coin, user, side, method, trades, sz, notional, avgPx, markPx, entity} |
| `topAccounts[]` | object | 20 most liquidated accounts: {user, notional, count} |

## Related (Liquidations & positions)

- [Liquidations](https://femtos.xyz/reference/liquidations.md) `GET /v1/liquidations`: Perp liquidations, newest first, one row per account, coin and block. (HyperCore)
- [Liquidations stream](https://femtos.xyz/reference/ws/liquidations.md) `WS hc.liquidations`: Each liquidation fill, the block it happens. (HyperCore)
- [Positions](https://femtos.xyz/reference/positions.md) `GET /v1/positions`: Open positions of one perp with leverage and liquidation price. (HyperCore)
- [Position changes](https://femtos.xyz/reference/ws/positions.md) `WS hc.positions`: Each perp position change, one per block, account and coin. (HyperCore)
- [Open interest](https://femtos.xyz/reference/positions-overview.md) `GET /v1/positions/overview`: Open interest, accounts and unrealized PnL per perp. (HyperCore)
- [Liquidation map](https://femtos.xyz/reference/liqmap.md) `GET /v1/positions/liqmap`: Notional that would be liquidated at each price around the mark. (HyperCore)

Every page: https://femtos.xyz/reference.md