API reference · Market data
Pool detail
One pool: dex, fee, tokens, liquidity in USD, depth, 5m to 24h activity, top LPs.
- Not on HyperCore: HyperCore trades on its order book, not on pools: its markets, trades and candles are on the same pages
GET https://api.femtos.xyz/v1/pools/{address}
Parameters
| Param | In | Example or values | Meaning |
|---|---|---|---|
address | path | <pair> (Elysium); <evmPair> (HyperEVM) | Pool address, or <PoolManager>:<PoolId> |
layer | query | elysium (Elysium); hyperevm (HyperEVM) | EVM layer |
Example
Elysium
curl -H "Authorization: Bearer $FEMTOS_KEY" "https://api.femtos.xyz/v1/pools/<pair>?layer=elysium"HyperEVM
curl -H "Authorization: Bearer $FEMTOS_KEY" "https://api.femtos.xyz/v1/pools/<evmPair>?layer=hyperevm"Key: Authorization: Bearer $FEMTOS_KEY. Get a free key, or with no browser through agent onboarding.
Response fields
| Field | Type | Meaning |
|---|---|---|
dex | string | Protocol |
factory | string | Factory / PoolManager |
feeTier | int | null | Fee tier (hundredths of a bip: 500 = 0.05 %) |
tickSpacing | int | null | Tick spacing |
hooks | string | null | Uniswap V4 / PancakeSwap Infinity hooks contract |
token0 | object | token0: {address, symbol, name, decimals, priceUsd, spam, spamReason} |
token1 | object | token1: {address, symbol, name, decimals, priceUsd, spam, spamReason} |
liquidity | object | null | What the pool holds; null when unknown (a vault pool without L, e.g. Balancer): {method, exact, amount0, amount1, amount0Raw, amount1Raw, usd, partial, at, block} |
depth2pct | object | null | Concentrated pools: depth to ±2 % from L and √P: {approx, up, down, liquidity, sqrtPriceX96, block} |
windows | object | From the candle tables: 5m / 1h from 1 min candles, 6h from 5 min, 24h from 1 h; a window starts at its first candle at or after head − length: {5m, 1h, 6h, 24h} |
topLps[] | object | null | V2-style pools with at most 2000 LP holders: the 10 largest: {address, balanceRaw, share, burned} |
lpHolders | int | string | null | V2-style pools: holders of the LP token (">2000" when more); null otherwise |
block | int | Creation block (provenance) |
tx | string | null | Creation transaction (pool-created event in that block) |
lastSwap | object | null | The pool's last swap (provenance of the state): {block, t, tx, logIndex} |
Related: Market data
- Markets GET /v1/markets Elysium, HyperCore, HyperEVM
Every tradable perp, spot, HIP-3 and outcome market with 24 h stats. - Candles GET /v1/candles Elysium, HyperCore, HyperEVM
OHLCV of any HyperCore market down to 1 s, ascending, UTC-aligned. - Forming candle WS elysium.candles · hc.candles · hyperevm.candles Elysium, HyperCore, HyperEVM
The forming candle, pushed once per block where it changes. - Token candles GET /v1/candles Elysium, HyperCore, HyperEVM
OHLCV of a token through its USDC market (a perp coin: the perp). - Trades GET /v1/trades Elysium, HyperCore, HyperEVM
Latest fills of one market, newest first. - Trades stream WS elysium.trades · hc.trades · hyperevm.trades Elysium, HyperCore, HyperEVM
All trades of one market as they happen: raced between our node and Hyperliquid's public feed, first copy sent, the other dropped. - Order book GET /v1/book HyperCore
L2 book of one market with order counts, from our node. - Book stream WS hc.book HyperCore
Full-depth book, then the levels each block changes. - Best bid / offer WS hc.bbo HyperCore
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). - Order updates WS hc.orders HyperCore
Every order status change, filterable by coin, user and status. - Token prices GET /v1/prices Elysium, HyperCore, HyperEVM
USD price of up to 100 tokens in one call, each with its source and provenance. - Price history GET /v1/prices/history Elysium, HyperCore, HyperEVM
USD closes per unit of up to 25 tokens over a window, or the price of 100 tokens at one time (at=). - HYPE price WS prices.hype HyperCore
HYPE from the Hyperliquid oracle, perp mark and exchanges. - Liquidity events GET /v1/liquidity Elysium, HyperEVM
Liquidity added to and removed from one pool, newest first. - Daily token volume GET /v1/volume Elysium, HyperEVM
USD swap volume of a token per UTC day, both sides of every priced swap.
More
- This page as Markdown
- The whole API reference
- What Elysium serves
- What HyperEVM serves
- The whole API in one Markdown file
- OpenAPI 3.1 document
Agent guide (agents.md)llms.txtOpenAPIMCP serverGet an API keyChangelog