# Token transfers stream | API reference | Femtos

> The ERC-20 transfers of one token on HyperEVM, pushed as each block is indexed; min_usd or min_amount for whale alerts. WebSocket channels elysium.transfers | hyperevm.transfers on Elysium and HyperEVM: parameters, response fields and a live call per layer.

- Base URL: `https://api.femtos.xyz/v1` (REST) · `wss://api.femtos.xyz/v1/ws` (WebSocket) · MCP: `https://api.femtos.xyz/mcp`
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  (https://femtos.xyz/agents.md#agent-onboarding)
- Decimals are exact strings, times Unix milliseconds, addresses lowercase `0x`
- Whole API in one file: https://femtos.xyz/agents.md · OpenAPI: https://api.femtos.xyz/v1/openapi.json · Index: https://femtos.xyz/llms.txt
- Page with live calls: https://femtos.xyz/reference/ws/transfers

WebSocket: get a ticket (`POST https://api.femtos.xyz/v1/ws-ticket` with your key), connect to `wss://api.femtos.xyz/v1/ws?ticket=$TICKET`, send the frame below; the first message has `"snapshot": true`. Details: https://femtos.xyz/agents.md#websocket

## Token transfers stream — WS `elysium.transfers | hyperevm.transfers`

- Elysium: The ERC-20 transfers of one token on Elysium, pushed as each block is indexed; min_usd or min_amount for whale alerts.
- HyperEVM: The ERC-20 transfers of one token on HyperEVM, pushed as each block is indexed; min_usd or min_amount for whale alerts.

Layers: Elysium, HyperEVM. Not on HyperCore: HyperCore has no ERC-20 Transfer logs: an account’s transfers are in the wallet and hc.ledger streams.
Page with live calls: https://femtos.xyz/reference/ws/transfers?layer=<elysium|hyperevm>

| Param | In | Example or values | Meaning |
|---|---|---|---|
| `token` | filter | `0xedb963ed6efe231f6327c87a42ed49abe2447afa` (Elysium); `0x5555555555555555555555555555555555555555` (HyperEVM) | ERC-20 token address, any case. Native HYPE moves emit no Transfer log: follow WHYPE |
| `min_usd` | filter | (optional) | Smallest USD value: amount × the token's current pool price (GET /v1/transfers' `usd`); unpriced transfers left out |
| `min_amount` | filter | (optional) | Smallest amount, token units; transfers of unknown decimals left out |

Elysium:

```json
{"op":"subscribe","channel":"elysium.transfers","filter":{"token":"0xedb963ed6efe231f6327c87a42ed49abe2447afa"}}
```

HyperEVM:

```json
{"op":"subscribe","channel":"hyperevm.transfers","filter":{"token":"0x5555555555555555555555555555555555555555"}}
```

| Field | Type | Meaning |
|---|---|---|
| `snapshot: true` | TokenTransfer[] | the last 50 transfers of the token the filter shows (with min_usd / min_amount: among its last 1000), within the last 20,000 blocks, oldest first |
| `data` | TokenTransfer | one transfer of the token (amount exact, `usd` at its current pool price, spam flag), pushed when the indexer commits its block; `"batch": "block"`: the transfers of one block in one frame: {block, t, tx, logIndex, token, symbol, decimals, from, to, amount, amountRaw, usd, …} |
| `data.usd` | decimal \| null | amount × the token's current pool price (not at the transfer); null unpriced |
| `data.amount` | decimal \| null | Token units |

## Related (Holders & tokens)

- [Token registry](https://femtos.xyz/reference/coins.md) `GET /v1/coins`: HyperCore tokens with their HyperEVM contract and price. (Elysium, HyperCore, HyperEVM)
- [Coin detail](https://femtos.xyz/reference/coin.md) `GET /v1/coins/{layer}/{id}`: One token: its links across layers, the markets it trades on, its 5 largest holders. (Elysium, HyperCore, HyperEVM)
- [Token metadata](https://femtos.xyz/reference/tokens-batch.md) `GET /v1/tokens`: Metadata of up to 100 tokens: supply, creator, logo and socials when indexed, family, spam. Also POST with a JSON body. (Elysium, HyperCore, HyperEVM)
- [Token overview](https://femtos.xyz/reference/token-overview.md) `GET /v1/tokens/{address}`: One token across all its pools: price, FDV, market cap, liquidity, windows, holders, top pools. (Elysium, HyperEVM)
- [Token across layers](https://femtos.xyz/reference/token-lifecycle.md) `GET /v1/tokens/{address}/lifecycle`: One token from its Elysium launch to its HyperEVM mirror, HyperCore spot and perps, each link proven or marked inferred. (Elysium, HyperCore, HyperEVM)
- [Holders](https://femtos.xyz/reference/holders.md) `GET /v1/holders`: Spot balances of a HyperCore token, largest first. (Elysium, HyperCore, HyperEVM)
- [Holders stream](https://femtos.xyz/reference/ws/holders.md) `WS elysium.holders | hyperevm.holders`: 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. (Elysium, HyperEVM)
- [Perp holders](https://femtos.xyz/reference/holders-positions.md) `GET /v1/holders`: Largest open positions of a perp, long and short. (HyperCore)
- [Holders history](https://femtos.xyz/reference/holders-history.md) `GET /v1/holders/history`: Holder count of an ERC-20 per day, and now. (Elysium, HyperEVM)
- [Token families](https://femtos.xyz/reference/token-families.md) `GET /v1/token-families`: Tokens whose balance moves without Transfer logs: Aave aTokens and debt tokens, stHYPE, xStocks. (Elysium, HyperEVM)
- [Family token holders](https://femtos.xyz/reference/token-family.md) `GET /v1/token-families/{token}`: Holders of one family token with balanceOf at the indexed head. (Elysium, HyperEVM)
- [Token transfers](https://femtos.xyz/reference/transfers.md) `GET /v1/transfers`: ERC-20 Transfer events of one token, newest first. (Elysium, HyperEVM)
- [Token security](https://femtos.xyz/reference/token-security.md) `GET /v1/tokens/{address}/security`: Honeypot check: a buy, a transfer and a sell simulated on our node, taxes, owner powers, holders and LP, with a verdict. (Elysium, HyperEVM)
- [Top traders](https://femtos.xyz/reference/token-traders.md) `GET /v1/tokens/{address}/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. (Elysium, HyperEVM)
- [Spam tokens](https://femtos.xyz/reference/spam-tokens.md) `GET /v1/tokens/spam`: Tokens the indexer flags as spam, left out of every list, and the latest flag changes. (Elysium, HyperEVM)

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