API reference, Holders & tokens
Top traders
The wallets that traded a token over the last 1h, 6h or 24h, ranked by PnL or volume, with average prices and realized / unrealized PnL.
- Not on HyperCore: HyperCore tokens trade on its order book, not in pools: the fills of a market are on trades, an account's PnL on the wallet page
GET https://api.femtos.xyz/v1/tokens/{address}/traders
Parameters
| Param | In | Example or values | Meaning |
|---|---|---|---|
address | path | <token> (Elysium); <evmToken> (HyperEVM) | Token address |
layer | query | elysium (Elysium); hyperevm (HyperEVM) | EVM layer |
window | query | 24h, 6h, 1h | Window ending at the indexed head: 1h, 6h or 24h |
sort | query | pnl, realized, volume | pnl (total, highest first), realized (realized PnL) or volume (USD bought + sold) |
limit | query | 20 | Traders |
Example
Elysium
curl -H "Authorization: Bearer $FEMTOS_KEY" "https://api.femtos.xyz/v1/tokens/<token>/traders?layer=elysium&window=24h&sort=pnl&limit=20"HyperEVM
curl -H "Authorization: Bearer $FEMTOS_KEY" "https://api.femtos.xyz/v1/tokens/<evmToken>/traders?layer=hyperevm&window=24h&sort=pnl&limit=20"Key: Authorization: Bearer $FEMTOS_KEY. Get a free key, or with no browser through agent onboarding.
Response fields
| Field | Type | Meaning |
|---|---|---|
traders[] | object | Best first by `sort` (ties: address): {address, entity, label, labelKind, contract, buys, sells, bought, sold, buyUsd, sellUsd, avgBuyPriceUsd, …} |
traders[].pnlUsd | decimal | realizedPnlUsd + unrealizedPnlUsd (realized alone when unrealized is null), USD |
traders[].realizedPnlUsd | decimal | min(bought, sold) × (avgSellPriceUsd − avgBuyPriceUsd); 0 without buys or sells, USD |
traders[].unrealizedPnlUsd | decimal | null | held × (priceUsd − avgBuyPriceUsd), USD; null when held > 0 and the token has no current price |
traders[].held | decimal | min(max(bought − sold, 0), balance): what the wallet still holds of its net buy in the window |
totals | object | The whole window, every trader (not only the rows returned): {traders, buyers, sellers, swaps, volumeUsd} |
priceUsd | decimal | null | Current USD price of the token (its most traded pool's, as /v1/prices); null when none |
complete | boolean | false: the window held more than 200,000 swaps on a side, the newest were read and `from` is where they start |
from | ms | First second counted (inclusive): to − window, or later when complete is false |
to | ms | Time of the indexed head (inclusive) |
method | average_cost | How PnL is computed (see the route) |
billing | medium | medium |
Related: Holders & tokens
- Token registry GET /v1/coins Elysium, HyperCore, HyperEVM
HyperCore tokens with their HyperEVM contract and price. - Coin detail GET /v1/coins/{layer}/{id} Elysium, HyperCore, HyperEVM
One token: its links across layers, the markets it trades on, its 5 largest holders. - Token metadata GET /v1/tokens Elysium, HyperCore, HyperEVM
Metadata of up to 100 tokens: supply, creator, logo and socials when indexed, family, spam. Also POST with a JSON body. - Token overview GET /v1/tokens/{address} Elysium, HyperEVM
One token across all its pools: price, FDV, market cap, liquidity, windows, holders, top pools. - Token across layers GET /v1/tokens/{address}/lifecycle Elysium, HyperCore, HyperEVM
One token from its Elysium launch to its HyperEVM mirror, HyperCore spot and perps, each link proven or marked inferred. - Holders GET /v1/holders Elysium, HyperCore, HyperEVM
Spot balances of a HyperCore token, largest first. - Holders stream WS elysium.holders | hyperevm.holders Elysium, HyperEVM
The largest holders and holder count of a HyperEVM token (GET /v1/holders), pushed on subscribe and in the block that moves one of its balances. - Perp holders GET /v1/holders HyperCore
Largest open positions of a perp, long and short. - Holders history GET /v1/holders/history Elysium, HyperEVM
Holder count of an ERC-20 per day, and now. - Token families GET /v1/token-families Elysium, HyperEVM
Tokens whose balance moves without Transfer logs: Aave aTokens and debt tokens, stHYPE, xStocks. - Family token holders GET /v1/token-families/{token} Elysium, HyperEVM
Holders of one family token with balanceOf at the indexed head. - Token transfers GET /v1/transfers Elysium, HyperEVM
ERC-20 Transfer events of one token, newest first. - Token transfers stream WS elysium.transfers | hyperevm.transfers Elysium, HyperEVM
The ERC-20 transfers of one token on HyperEVM, pushed as each block is indexed; min_usd or min_amount for whale alerts. - Token security GET /v1/tokens/{address}/security Elysium, HyperEVM
Honeypot check: a buy, a transfer and a sell simulated on our node, taxes, owner powers, holders and LP, with a verdict. - Spam tokens GET /v1/tokens/spam Elysium, HyperEVM
Tokens the indexer flags as spam, left out of every list, and the latest flag changes.
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