# Walls held or pulled | API reference | Femtos

> One market's walls the price came to, one by one: held or pulled, when and whose. GET /v1/hypercore/walls/events on HyperCore: parameters, response fields and a live call per layer.

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- Decimals are exact strings, times Unix milliseconds, addresses lowercase `0x`
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- Page with live calls: https://femtos.xyz/reference/walls-events

## Walls held or pulled — GET `/v1/hypercore/walls/events`

One market's walls the price came to, one by one: held or pulled, when and whose.

Layers: HyperCore. Not on Elysium or HyperEVM: the EVM layers trade on AMM pools, with no order book: pool detail and liquidity events cover a pool.
Page with live calls: https://femtos.xyz/reference/walls-events?layer=hypercore

| Param | In | Example or values | Meaning |
|---|---|---|---|
| `coin` | query | `BTC` | Market (perp name, spot @index, HIP-3 dex:COIN) |
| `from` | query | (optional) | From (Unix ms); default `to` − 24 h |
| `to` | query | (optional) | To (Unix ms); default now |
| `tier` | query | `3` | Smallest wall: 1 = $25k and more, 2 = $100k and more, 3 = $1M and more |
| `limit` | query | `50` | Events |

```bash
curl -H "Authorization: Bearer $FEMTOS_KEY" "https://api.femtos.xyz/v1/hypercore/walls/events?coin=BTC&tier=3&limit=50"
```

| Field | Type | Meaning |
|---|---|---|
| `events[]` | object | Newest first: {time, placed, user, entity, side, px, sz, filled, usd, outcome, lifeS} |
| `events[].outcome` | held \| pulled | held: it traded, wholly or in part; pulled: cancelled unfilled with the price within the test distance |
| `events[].px` | decimal | Limit price |
| `events[].usd` | decimal | Limit price × size placed, in the market's quote |
| `events[].user` | string | Account: 0x address, or a named wallet's handle |
| `events[].lifeS` | int | Seconds from placement to its end |

## Related (Market data)

- [Markets](https://femtos.xyz/reference/markets.md) `GET /v1/markets`: Every tradable perp, spot, HIP-3 and outcome market with 24 h stats. (Elysium, HyperCore, HyperEVM)
- [Markets stream](https://femtos.xyz/reference/ws/markets.md) `WS elysium.markets | hc.markets | hyperevm.markets`: The GET /v1/markets list of HyperCore (prices, 24 h volume and change), pushed on subscribe and when it changes. (Elysium, HyperCore, HyperEVM)
- [Token screener](https://femtos.xyz/reference/tokens-top.md) `GET /v1/tokens/top`: The tokens of HyperEVM, one row each over all their pools: trending, volume, gainers, losers, new, market cap, liquidity. (Elysium, HyperEVM)
- [Candles](https://femtos.xyz/reference/candles.md) `GET /v1/candles`: OHLCV of any HyperCore market down to 1 s, ascending, UTC-aligned. (Elysium, HyperCore, HyperEVM)
- [Forming candle](https://femtos.xyz/reference/ws/candles.md) `WS elysium.candles | hc.candles | hyperevm.candles`: The forming candle, pushed once per block where it changes. (Elysium, HyperCore, HyperEVM)
- [Token candles](https://femtos.xyz/reference/token-candles.md) `GET /v1/candles`: OHLCV of a token through its USDC market (a perp coin: the perp). (Elysium, HyperCore, HyperEVM)
- [Token candles stream](https://femtos.xyz/reference/ws/token-candles.md) `WS elysium.token.candles | hc.token.candles | hyperevm.token.candles`: A token's candles by name (its USDC market; a perp coin: the perp), the forming candle pushed once per block where it changes. (Elysium, HyperCore, HyperEVM)
- [Trades](https://femtos.xyz/reference/trades.md) `GET /v1/trades`: Latest fills of one market, newest first. (Elysium, HyperCore, HyperEVM)
- [Trades stream](https://femtos.xyz/reference/ws/trades.md) `WS elysium.trades | hc.trades | hyperevm.trades`: All trades of one market as they happen: raced between our node and Hyperliquid's public feed, first copy sent, the other dropped. (Elysium, HyperCore, HyperEVM)
- [Swap history stream](https://femtos.xyz/reference/ws/trades-history.md) `WS elysium.trades.history | hyperevm.trades.history`: The latest swaps of a token or pool on HyperEVM (GET /v1/trades with filters), pushed on subscribe, then each block with a new swap it shows. (Elysium, HyperEVM)
- [Order book](https://femtos.xyz/reference/book.md) `GET /v1/book`: L2 book of one market with order counts, from our node. (HyperCore)
- [Book stream](https://femtos.xyz/reference/ws/book.md) `WS hc.book`: Full-depth book, then the levels each block changes. (HyperCore)
- [Named wallets on the book](https://femtos.xyz/reference/ws/book-named.md) `WS hc.book.named`: Who sits on the book: the resting limit orders of the named wallets (funds, traders, KOLs), by level, live. (HyperCore)
- [Walls on the book](https://femtos.xyz/reference/ws/book-walls.md) `WS hc.book.walls`: Every large resting order on the book with its owner, live, and whether that owner's walls hold or are pulled when the price comes. (HyperCore)
- [Wall reliability](https://femtos.xyz/reference/walls.md) `GET /v1/hypercore/walls`: Which accounts' large resting orders hold when the price comes, and which are pulled. (HyperCore)
- [Best bid / offer](https://femtos.xyz/reference/ws/bbo.md) `WS hc.bbo`: Top of book of one market each block: raced between Hyperliquid's public feed and our node (newest block wins, our node corrects the same block). (HyperCore)
- [Asset contexts stream](https://femtos.xyz/reference/ws/ctx.md) `WS hc.ctx`: Mark, oracle, mid, funding, open interest and 24 h volume of every HyperCore market, pushed as they change: one read per second for every subscriber. (HyperCore)
- [Order updates](https://femtos.xyz/reference/ws/orders.md) `WS hc.orders`: Every order status change, filterable by coin, user and status. One frame per block with all its matching events. (HyperCore)
- [Token prices](https://femtos.xyz/reference/prices.md) `GET /v1/prices`: USD price of up to 100 tokens in one call, each with its source and provenance. (Elysium, HyperCore, HyperEVM)
- [Price history](https://femtos.xyz/reference/price-history.md) `GET /v1/prices/history`: USD closes per unit of up to 25 tokens over a window, or the price of 100 tokens at one time (at=). (Elysium, HyperCore, HyperEVM)
- [HYPE price](https://femtos.xyz/reference/ws/prices.md) `WS prices.hype`: HYPE from HyperCore’s spot mid (each block), the Hyperliquid oracle and perp mark, and exchanges. (HyperCore)
- [Token prices stream](https://femtos.xyz/reference/ws/token-prices.md) `WS elysium.prices | hyperevm.prices`: USD prices of up to 100 HyperEVM tokens, as GET /v1/prices answers them, pushed in each block that changes one. (Elysium, HyperEVM)
- [Pool detail](https://femtos.xyz/reference/pool.md) `GET /v1/pools/{address}`: One pool: dex, fee, tokens, liquidity in USD, depth, 5m to 24h activity, top LPs. (Elysium, HyperEVM)
- [Pool stream](https://femtos.xyz/reference/ws/pool.md) `WS elysium.pool | hyperevm.pool`: One pool on HyperEVM (GET /v1/pools/{address}: price, liquidity and depth, 5m to 24h activity, LPs), pushed on subscribe, then in each block that touches it: swap, liquidity added or removed, balance moved. (Elysium, HyperEVM)
- [Liquidity events](https://femtos.xyz/reference/liquidity.md) `GET /v1/liquidity`: Liquidity added to and removed from one pool, newest first. (Elysium, HyperEVM)
- [Liquidity events stream](https://femtos.xyz/reference/ws/liquidity.md) `WS elysium.liquidity | hyperevm.liquidity`: Liquidity added to and removed from one pool on HyperEVM (GET /v1/liquidity), pushed on subscribe, then in each block that adds or removes some. (Elysium, HyperEVM)
- [Daily token volume](https://femtos.xyz/reference/volume.md) `GET /v1/volume`: USD swap volume of a token per UTC day, both sides of every priced swap. (Elysium, HyperEVM)

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