# 47620 Crypto Derivatives Context API (SOL)

> 47620 Crypto Derivatives Context API (SOL) is a paid API for AI agents from 47620.xyz, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-02).

Returns perpetual-futures market data for a given coin, including last funding rate, mark vs index price, next funding time, and open interest in both base and USD.

## Facts

- Endpoint: GET https://47620.xyz/x/crypto/derivatives/SOL?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/47620-crypto-derivatives-context-api-sol-25b3e1fb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FcWqiSjWIMUWvnH7xAcDG

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 47620-crypto-derivatives-context-api-sol-25b3e1fb
```

Example prompt: What's the current funding rate, mark vs index price, and open interest for SOL perpetual futures right now? I want to check derivatives conditions before sizing a position.

## When to prefer this

Use this endpoint when an agent needs real-time perpetual-futures context for a specific coin — particularly funding rate, mark/index price spread, and open interest — before making a derivatives trading decision. It is purpose-built for derivatives/trading agents that need a single concise data call rather than scraping multiple exchange APIs. Prefer this over generic market data APIs when the use case is specifically futures/perp trading signals.

## Known failure modes

- Invalid or unsupported coin symbol returns an error or empty result
- Stale data if the upstream exchange API is delayed
- Payment failure (402) if USDC balance is insufficient
- Rate limiting if called too frequently
- Symbol not listed on the underlying derivatives exchange returns no data

## How this service works

Perpetual-futures context for a coin: last funding rate (and %), mark vs index price, next funding time, and open interest (base + USD). The signal a derivatives/trading agent checks before sizing a position.

## Output

A JSON object containing the perpetual futures context for the requested coin, including the last funding rate value and percentage, mark price, index price, timestamp of next funding, and open interest in both base token units and USD equivalent.

## 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",
     "required": [
      "symbol"
     ],
     "properties": {
      "symbol": {
       "type": "string",
       "description": "Perpetual-futures context for a coin: last funding rate (and %), mark vs index price, next funding time, and open interest (base + USD). The signal a derivatives/trading agent checks before sizing a position."
      }
     },
     "additionalProperties": false
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "fields": {
       "type": "string",
       "description": "Optional comma-separated top-level response keys to keep (e.g. \"health,slot,solUsd\"). Omit for the full payload."
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type",
    "example"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "json"
    },
    "example": {
     "type": "object",
     "required": [
      "ok",
      "endpoint"
     ],
     "properties": {
      "ok": {
       "type": "boolean"
      },
      "endpoint": {
       "type": "string"
      }
     },
     "additionalProperties": true
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/47620-crypto-derivatives-context-api-sol-25b3e1fb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 47620.xyz](https://www.zero.xyz/host/47620.xyz/llms.txt)