# Laevitas Perpetuals Carry Data

> Laevitas Perpetuals Carry Data is a paid API for AI agents from apiv2.laevitas.ch, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-16).

Returns historical carry (funding rate vs basis) data for perpetual futures contracts across crypto exchanges

## Facts

- Endpoint: GET https://apiv2.laevitas.ch/api/v1/perpetuals/carry
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/laevitas-perpetuals-carry-data-dbc3e8ca
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WmYA9GE2mxF3udMxaepxk

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability laevitas-perpetuals-carry-data-dbc3e8ca
```

Example prompt: Pull the perpetuals carry data for BTC-PERPETUAL on Binance from January 1 to January 31 2025 with 1h resolution, limit to 500 results.

## When to prefer this

Use this endpoint when you need historical or recent carry (funding rate vs basis) data specifically for perpetual futures contracts on crypto exchanges like Binance, OKX, Deribit, Bybit, or Hyperliquid. Prefer this over generic market data APIs when the analysis involves carry trades, funding arbitrage, or basis-funding spread analysis in crypto derivatives.

## Known failure modes

- Missing or invalid API key returns 401 unauthorized
- Invalid exchange name returns empty data or 400 error
- Unsupported resolution enum value causes 400 validation error
- Date range too large may hit limit constraints
- Instrument name not found on the specified exchange returns empty data array
- x402 payment failure returns 402 Payment Required

## How this service works

Professional market data API for crypto derivatives, spot markets, prediction markets, Hyperliquid HyperCore data, proprietary volatility surfaces, and analytics.

## Authentication

Use an API key for authenticated REST requests:

```http
X-API-Key: your-api-key-here
```

Most data endpoints also support x402 pay-per-request without an API key.

| Resource | Path |
| --- | --- |
| OpenAPI JSON | `GET /openapi.json` |
| x402 discovery | `GET /.well-known/x402` |
| Changelog | `GET /api/v1/changelog` |
| WebSocket docs | `GET /websocket` |

## REST Surfaces

| Surface | Examples |
| --- | --- |
| Instruments | Cross-market contract reference data |
| Futures | OHLCVT, trades, tickers, orderbook, liquidations, carry |
| Perpetuals | OHLCVT, trades, funding, open interest, orderbook, liquidations |
| Options | OHLCVT, trades, Greeks, volatility, flow, dealer GEX |
| Vol Surface | Proprietary surface snapshots, slices, strikes, term structure, risk |
| Spot | OHLCVT, ticker, trades, volume, L2 orderbook, snapshots |
| Predictions | Polymarket instruments, categories, trades, ticker history |
| Hyperliquid - HyperCore | Node-derived fills, liquidations, positions, funding, TWAPs, resting orders, L2 books |
| Analytics | Realized volatility and derived metrics |

## Pagination

Paginated endpoints return the cursor at `meta.next_cursor`. Pass that value back as the `cursor` query parameter to fetch the next page.

## WebSocket Streaming

Real-time streams are documented at `/websocket`.

| Data | Channel pattern |
| --- | --- |
| Trades | `trades.{market}.{exchange}.{instrument}` |
| OHLC ticker | `ohlc.ticker.{market}.{exchange}.{instrument}.{timeframe}` |
| OHLCVT | `ohlc.vt.{market}.{exchange}.{instrument}.{timeframe}` |

Variables: `market` is one of `perpetuals`, `futures`, `options`, or `spot`; `timeframe` is one of `1m`, `5m`, `15m`, `1h`, `4h`, or `1d`.

## Quick Start

```bash
curl "https://apiv2.laevitas.ch/api/v1/futures/ohlcvt?exchange=deribit&instrument_name=BTC-PERPETUAL" \
  -H "X-API-Key: your-api-key-here"
```

## Output

Returns a JSON object with a 'data' array containing carry metrics (funding rate vs basis) for the specified perpetual instrument, exchange, and time range, plus a 'success' boolean flag.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "end": {
       "type": "string"
      },
      "limit": {
       "type": "integer",
       "maximum": 1000,
       "minimum": 1
      },
      "start": {
       "type": "string"
      },
      "cursor": {
       "type": "string"
      },
      "exchange": {
       "type": "string"
      },
      "resolution": {
       "enum": [
        "1m",
        "5m",
        "15m",
        "1h",
        "4h",
        "1d"
       ],
       "type": "string"
      },
      "instrument_name": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": [],
  "success": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/laevitas-perpetuals-carry-data-dbc3e8ca/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from apiv2.laevitas.ch](https://www.zero.xyz/host/apiv2.laevitas.ch/llms.txt)