# Laevitas Futures Open Interest

> Laevitas Futures Open Interest 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).

Retrieves historical open interest data for futures instruments across crypto exchanges

## Facts

- Endpoint: GET https://apiv2.laevitas.ch/api/v1/futures/open-interest
- 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-futures-open-interest-21490959
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7dODVrAQITyJBXzj8bjKs

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-futures-open-interest-21490959
```

Example prompt: Pull me the hourly open interest history for BTC-PERPETUAL on Deribit from January 1 to January 31 2024, up to 500 data points.

## When to prefer this

Use this endpoint when you need historical or current open interest data specifically for futures instruments on major crypto exchanges like Binance, OKX, Deribit, or Bybit. Prefer this over WebSocket channels when you need historical time-series data rather than real-time streaming. Ideal for backtesting, charting, or analyzing open interest trends across specific instruments and timeframes.

## Known failure modes

- Missing or invalid API key returns 401 unauthorized
- Invalid exchange name returns empty data or 400 error
- Invalid instrument_name returns empty data array
- start/end date out of range or malformed returns error
- limit exceeding 1000 returns validation error
- Invalid resolution enum value returns 400 error
- Rate limiting or insufficient x402 payment returns 402

## 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 open interest records for the specified futures instrument, along with a 'success' boolean. Each record includes timestamped open interest values. Supports cursor-based pagination for large result sets.

## 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-futures-open-interest-21490959/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)