API reference · Holders & tokens
Token metadata
Metadata of up to 100 tokens: supply, creator, logo and socials when indexed, family, spam. Also POST with a JSON body.
GET https://api.femtos.xyz/v1/tokens
Parameters
| Param | In | Example or values | Meaning |
|---|---|---|---|
layer | query | elysium (Elysium); hypercore (HyperCore); hyperevm (HyperEVM) | Layer: hyperevm / elysium (0x token addresses) or hypercore (token names HYPE, PURR, token ids, perp coins BTC). Absent: hypercore when every token is a name, else hyperevm |
addresses | query | <token> (Elysium); HYPE,PURR,BTC (HyperCore); 0x5555555555555555555555555555555555555555,<evmToken>,0xb88339cb7199b77e23db6e890353e22632ba630f (HyperEVM) | Comma list of at most 100 token addresses (hypercore: names / ids) |
Example
Elysium
curl -H "Authorization: Bearer $FEMTOS_KEY" "https://api.femtos.xyz/v1/tokens?layer=elysium&addresses=<token>"HyperCore
curl -H "Authorization: Bearer $FEMTOS_KEY" "https://api.femtos.xyz/v1/tokens?layer=hypercore&addresses=HYPE%2CPURR%2CBTC"HyperEVM
curl -H "Authorization: Bearer $FEMTOS_KEY" "https://api.femtos.xyz/v1/tokens?layer=hyperevm&addresses=0x5555555555555555555555555555555555555555%2C<evmToken>%2C0xb88339cb7199b77e23db6e890353e22632ba630f"Key: Authorization: Bearer $FEMTOS_KEY. Get a free key, or with no browser through agent onboarding.
Response fields
| Field | Type | Meaning |
|---|---|---|
layer | string | Layer |
tokens[] | object | In the order asked: TokenMeta (hyperevm / elysium) or Coin (hypercore): {address, symbol, name, decimals, totalSupply, creator, createdAt, createdBlock, logo, description, socials, family, …} |
missing | string[] | Asked, not found |
asOf | int | null | Time of `height`: the layer head the answer is cut at (EVM: indexed head; HyperCore: ingested head) (Unix ms) |
height | int | null | Head block of the layer the answer is cut at |
testnet | boolean | Elysium testnet only (absent on mainnet): USD values from testnet pools, nominal |
syncing | true | Present while the layer syncs: data only up to dataUntil |
dataUntil | int | null | Indexed head time while the layer syncs (Unix ms) |
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 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. - Perp holders GET /v1/holders HyperCore
Largest open positions of a perp, long and short. - 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 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 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