# KOL moves · HyperEVM API · Femtos

> The latest HyperEVM swaps and transfers of the named wallets, with who moved.

- Base URL: `https://api.femtos.xyz/v1` (REST) · `wss://api.femtos.xyz/v1/ws` (WebSocket) · MCP: `https://api.femtos.xyz/mcp`
- Auth: `Authorization: Bearer $FEMTOS_KEY` (or `X-API-KEY: $FEMTOS_KEY`). Free key: https://femtos.xyz/accounts/ (browser), or with
  no browser: `GET https://femtos.xyz/accounts/agent/challenge`, solve its proof of work, then `POST https://femtos.xyz/accounts/agent/signup`
  (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/hyperevm/kol-activity

## KOL moves — GET `/v1/kols/activity`

The latest HyperEVM swaps and transfers of the named wallets, with who moved.

| Param | In | Example or values |
|---|---|---|
| `layer` | query | `hyperevm` |
| `entity` | query | (optional) |
| `minNotional` | query | (optional) |
| `limit` | query | `50` |
| `includeSpam` | query | `(empty)`, `true` |

```bash
curl -H "Authorization: Bearer $FEMTOS_KEY" "https://api.femtos.xyz/v1/kols/activity?layer=hyperevm&limit=50"
```

| Field | Type | Meaning |
|---|---|---|
| `rows[]` | KolItem | {kind: swap \| transfer, t, wallet, entity, pair, base, side, notional, token, amount} |
| `hash · block · logIndex` | string · int · int | source: the swap / Transfer log |
| `bridges[]` | KolItem | first page: their latest bridge legs (kind bridge) |
| `scope` | object | blocks read per kind |
| `spam · spamReason` | boolean · string | spam tokens hidden unless includeSpam=true |
| `next · before` | string | cursor <block>:<logIndex> of the next page |

## Related (Named wallets)

- [KOL leaderboard](https://femtos.xyz/hyperevm/kols.md): KOLs, traders and funds ranked by their HyperEVM swaps, transfers, bridge legs and holdings.
- [KOL stream](https://femtos.xyz/hyperevm/ws-kols.md): Every HyperEVM swap, transfer and bridge leg of a named wallet, on each indexed block.

All HyperEVM endpoints: https://femtos.xyz/hyperevm.md