# Markets · HyperEVM API · Femtos

> Active HyperEVM pools with 24 h stats.

- 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`. 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/markets

## Markets — GET `/v1/markets`

Active HyperEVM pools with 24 h stats.

| Param | In | Example or values |
|---|---|---|
| `layer` | query | `hyperevm` |
| `includeSpam` | query | `(empty)`, `true` |

```bash
curl -H "Authorization: Bearer $FEMTOS_KEY" "https://api.femtos.xyz/v1/markets?layer=hyperevm"
```

| Field | Type | Meaning |
|---|---|---|
| `id · symbol · base · quote` | string | pool key and tokens |
| `kind · protocol · feeTier` | string | pool, DEX protocol |
| `price · change24h` | decimal · number | last swap, 24 h change in % |
| `volume24hUsd · trades24h · mcapUsd` | decimal · int | rolling 24 h, market cap |
| `spam · spamReason` | boolean · string \| null | base or quote is a spam token; hidden unless includeSpam=true |

## Related (Market data)

- [Candles](https://femtos.xyz/hyperevm/candles.md): OHLCV of one pool in pair price, USD and market cap, ascending, UTC-aligned.
- [Forming candle](https://femtos.xyz/hyperevm/ws-candles.md): The forming candle, pushed once per block where it changes.
- [Trades](https://femtos.xyz/hyperevm/trades.md): Latest swaps of one pool, newest first.
- [Trades stream](https://femtos.xyz/hyperevm/ws-trades.md): The swaps of one pool, one message per block that has some.

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