# Trusted Information API — Crypto Derivatives Data

> Trusted Information API — Crypto Derivatives Data is a paid API for AI agents from api.trustedinformation.site, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).

Returns real-time derivatives market data (mark price, funding rate, open interest) for a given crypto asset pair from Binance Futures.

## Facts

- Endpoint: GET https://api.trustedinformation.site/api/crypto/derivatives
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/trusted-information-api-crypto-derivatives-data-246f71f3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uwMokt3py1yot1sUHOQue

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 trusted-information-api-crypto-derivatives-data-246f71f3
```

Example prompt: What's the current mark price and funding rate for BTC-USD perpetual futures right now — and are longs or shorts paying?

## When to prefer this

Choose this endpoint when you need real-time crypto derivatives data — specifically mark price, funding rate, and open interest — for perpetual futures pairs, sourced directly from Binance Futures without requiring signup or API keys. It is ideal for AI agents needing pay-per-call access to derivatives sentiment signals (funding bias, annualized rates) with guaranteed no-charge on failed calls. Prefer this over generic crypto spot price endpoints when derivatives-specific metrics like funding rate or open interest are required.

## Known failure modes

- Missing or invalid 'pair' query parameter returns an error — must be formatted as e.g. BTC-USD or ETH-USD
- Unsupported or unlisted trading pair may return no data or an error
- Binance Futures API unavailability may cause upstream data failure
- Payment failure via x402 results in no charge and no data returned
- Malformed request (wrong HTTP method) returns 4xx error

## How this service works

Pay-per-call UK company, property and crypto market data for AI agents via x402. Official sources, no signup, no API keys, failed calls never charged.

## Output

A JSON object containing the asset pair, data source (Binance Futures), mark price (float), funding rate details (current rate, bias indicating whether longs or shorts pay, annualized percentage, next funding time in ISO 8601), and open interest in both base asset units and USD notional value.

## 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"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "pair"
     ],
     "properties": {
      "pair": {
       "type": "string",
       "description": "Asset pair, e.g. BTC-USD or ETH-USD"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "pair",
      "markPrice",
      "fundingRate"
     ],
     "properties": {
      "pair": {
       "type": "string"
      },
      "markPrice": {
       "type": "number"
      },
      "fundingRate": {
       "type": "object"
      },
      "openInterest": {
       "type": "object"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "pair": "BTC-USDT-PERP",
  "source": "Binance Futures",
  "markPrice": 64160.57,
  "fundingRate": {
   "bias": "longs pay shorts",
   "current": 0.000016,
   "annualizedPct": 1.72,
   "nextFundingTime": "2026-07-25T16:00:00Z"
  },
  "openInterest": {
   "baseAsset": 75234.5,
   "notionalUsd": 4826000000
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/trusted-information-api-crypto-derivatives-data-246f71f3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.trustedinformation.site](https://www.zero.xyz/host/api.trustedinformation.site/llms.txt)