# x402stock Perpetual Futures Market Data by Coin

> x402stock Perpetual Futures Market Data by Coin is a paid API for AI agents from agents.x402stock.xyz, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-14).

Returns live perpetual-futures market state for a single coin (mark price, oracle price, funding rate, open interest, leverage, volume) from Hyperliquid DEX

## Facts

- Endpoint: GET https://agents.x402stock.xyz/api/v1/perps/:coin?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402stock-perpetual-futures-market-data-by-coin-9ab738fb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SqeLop4wnFJDeAzr17ev5

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 x402stock-perpetual-futures-market-data-by-coin-9ab738fb
```

Example prompt: What's the current funding rate and open interest for BTC perpetual futures on Hyperliquid right now — and what's the annualized APR on that funding?

## When to prefer this

Choose this endpoint when you need a single-coin deep dive into perpetual futures mechanics — specifically funding rates, open interest, and mark/oracle price data from Hyperliquid. Prefer this over generic crypto price endpoints when funding rate signals or derivatives-specific metrics (premium, OI, leverage limits) are required. It is the right choice for cash-and-carry analysis, funding arbitrage detection, or derivatives market monitoring on Hyperliquid without requiring an API key.

## Known failure modes

- Invalid or unsupported coin symbol returns an error — only coins listed on Hyperliquid perps are valid
- Market temporarily unavailable or delisted coin may return 404 or empty data
- Network latency may cause slightly stale data during high-volatility periods
- Payment failure (402) if USDC balance is insufficient for the $0.01 per-call fee

## How this service works

Live state of one perpetual-futures market by coin (e.g. BTC, ETH, SOL): mark and oracle price, current hourly funding rate with annualized APR, premium, open interest, max leverage, previous-day price, and 24h USD and base volume. The single-coin read for funding and open-interest signals. Free on-chain DEX data (venue: Hyperliquid), no key. From x402stock

## Output

A JSON snapshot of the specified coin's perpetual futures market including: mark price, oracle price, current hourly funding rate with annualized APR, premium (mark vs oracle spread), open interest in base and USD terms, maximum available leverage, previous day's closing price, and 24-hour trading volume in both USD and base currency.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "pathParams": {
     "coin": {
      "type": "string"
     },
     "type": "object"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402stock-perpetual-futures-market-data-by-coin-9ab738fb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agents.x402stock.xyz](https://www.zero.xyz/host/agents.x402stock.xyz/llms.txt)