API reference · Market data
Token candles
- Elysium, HyperEVM: OHLCV of a token in USD through its reference pool, the most liquid one.
- HyperCore: OHLCV of a token through its USDC market (a perp coin: the perp).
GET https://api.femtos.xyz/v1/candles
Parameters
| Param | In | Example or values | Meaning |
|---|---|---|---|
layer | query | elysium (Elysium); hypercore (HyperCore); hyperevm (HyperEVM) | Layer (default: hypercore; token form: hypercore for a name, hyperevm for an address) |
token | query | <token> (Elysium); HYPE (HyperCore); <evmToken> (HyperEVM) | Instead of market: the candles of a token. EVM layers: its side of its reference pool, o/h/l/c in USD (unit: usd), v in the token, vq in the other token, buys / sells, mcap; the answer names the pool (`market`, `reference`). HyperCore: the candles of the token's USDC spot market (a perp coin: the perp). The reference pool of a token: among its active pools whose USD price is known (pools of a spam token left out, unless the token itself is spam), the one with the largest liquidityUsd of at least $1,000 (twice the smaller side of what the pool contract holds at the indexed head, valued at USD prices: HyperCore for HYPE, WHYPE and the Core-linked tokens); when none reaches it, the most 24 h USD volume, then the most trades, then the oldest pool. Uniswap V4 / PancakeSwap Infinity / Balancer pools keep their tokens in a shared vault: their liquidity is not measured (null), they rank by volume. |
tf | query | 1s, 15s, 1m, 5m, 15m, 1h, 4h, 1d | Candle unit |
limit | query | 48 | Candles |
Example
Elysium
curl -H "Authorization: Bearer $FEMTOS_KEY" "https://api.femtos.xyz/v1/candles?layer=elysium&token=<token>&tf=1h&limit=48"HyperCore
curl -H "Authorization: Bearer $FEMTOS_KEY" "https://api.femtos.xyz/v1/candles?layer=hypercore&token=HYPE&tf=1h&limit=48"HyperEVM
curl -H "Authorization: Bearer $FEMTOS_KEY" "https://api.femtos.xyz/v1/candles?layer=hyperevm&token=<evmToken>&tf=1h&limit=48"Key: Authorization: Bearer $FEMTOS_KEY. Get a free key, or with no browser through agent onboarding.
Response fields
| Field | Type | Meaning |
|---|---|---|
market | string | Market (token form: the reference pool / USDC market) |
reference | object | token form, EVM: the reference pool (PoolRef) and its rule (Elysium, HyperEVM) |
unit | usd | usdc | token form: what o/h/l/c are in |
candles[] | object | Ascending: {t, o, h, l, c, v, vq, n, vUsd, mcUsd, usd, mcap, …} |
candles[].o | decimal | Open, in the quote (HyperCore: USDC; EVM pools: the quote token; token form: USD) |
candles[].buys | int | token form (EVM): swaps buying the token (Elysium, HyperEVM) |
candles[].mcap | object | Same candle as market cap in USD {o,h,l,c} (Elysium, HyperEVM): {o, h, l, c} (Elysium, HyperEVM) |
asOf | ms | Time of `height` (HyperCore: ingested head; EVM: indexed head, committed with the candles) (Elysium, HyperEVM) |
height | int | Head block of the layer the answer is cut at: every event up to it is counted (HyperCore: ingested head; EVM: indexed head, committed with the candles) (Elysium, HyperEVM) |
billing | heavy | heavy over 30 days |
candles[].n | int | Trades (HyperCore) |
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. - 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. - Pool detail GET /v1/pools/{address} Elysium, HyperEVM
One pool: dex, fee, tokens, liquidity in USD, depth, 5m to 24h activity, top LPs. - 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 HyperCore 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