# Named wallets · HyperCore API · Femtos

> Every named entity, its X account, kinds, sources and wallets.

- 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/hypercore/entities

## Named wallets — GET `/v1/entities`

Every named entity, its X account, kinds, sources and wallets.

| Param | In | Example or values |
|---|---|---|
| `q` | query | (optional) |
| `kind` | query | (optional) |

```bash
curl -H "Authorization: Bearer $FEMTOS_KEY" "https://api.femtos.xyz/v1/entities"
```

| Field | Type | Meaning |
|---|---|---|
| `entities[]` | Entity | {id, name, x, kinds, aliases, sources, wallets[]} |
| `wallets[].address` | handle | <entityId>.<hex>: a named wallet's address is never served, its handle stands for it in every answer and is accepted wherever an address is |
| `entity · <field>Entity` | {id, name, x, kinds} | next to named addresses in every answer |

## Related (Named wallets)

- [KOL leaderboard](https://femtos.xyz/hypercore/kols.md): KOLs, traders and funds ranked by their HyperCore PnL, volume and open positions.
- [KOL trades](https://femtos.xyz/hypercore/kol-activity.md): The latest fills of the named wallets, newest first, with who traded.
- [KOL stream](https://femtos.xyz/hypercore/ws-kols.md): Every fill, liquidation, EVM swap, transfer and bridge leg of a named wallet, live.
- [One entity](https://femtos.xyz/hypercore/entity.md): One named entity: its wallets on the three layers and 30 days of HyperCore trading.

All HyperCore endpoints: https://femtos.xyz/hypercore.md