# Perp Realized Volatility Signal

> Perp Realized Volatility Signal is a paid API for AI agents from derivatives.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-30).

Returns annualized realized volatility for a Hyperliquid perpetual futures contract, computed from hourly candles over a 24–168 hour lookback window, with a high/moderate/low verdict.

## Facts

- Endpoint: GET https://derivatives.x402tookit.com/perp-volatility?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/perp-realized-volatility-signal-3db73d60
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jbBe7KW96ge6-jEWzkXl4

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 perp-realized-volatility-signal-3db73d60
```

Example prompt: What's the annualized realized volatility for the SOL perp on Hyperliquid over the last 72 hours — is it in a high or low volatility regime right now?

## When to prefer this

Choose this endpoint when you need a quick, pre-computed realized volatility signal specifically for Hyperliquid perpetual futures, with a built-in high/moderate/low verdict for easy downstream decision-making. Prefer it over raw OHLCV APIs when you want volatility already annualized and contextualized against thresholds. Best for pre-trade checks, risk management overlays, or volatility regime classification in agentic workflows. Not suitable if you need implied volatility, options Greeks, or cross-venue volatility comparisons.

## Known failure modes

- Invalid or unlisted ticker returns an error or null coin field
- Hours value outside 24–168 range may be rejected or clamped
- Degraded flag set to true if insufficient candle data is available for the window
- Hyperliquid data outage may cause null fields or empty candles count
- Stale data may be returned if the upstream candle feed is delayed

## How this service works

Realized volatility for a perp from hourly candles over 24-168 hours, annualized, with a high/low verdict.

## Output

Returns a JSON object with: the coin ticker, lookback hours used, number of hourly candles analyzed, annualized realized volatility percentage, max single-hour move %, price range %, a high/moderate/low verdict string, human-readable summary and reasons, volatility thresholds used, data source URL, timestamp, and a degraded flag if data quality was reduced.

## 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": [
      "coin"
     ],
     "properties": {
      "coin": {
       "type": "string",
       "description": "Hyperliquid ticker, e.g. SOL"
      },
      "hours": {
       "type": "integer",
       "description": "Lookback hours, 24 to 168, default 72"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "asOf": {
       "type": [
        "null",
        "string"
       ]
      },
      "coin": {
       "type": [
        "null",
        "string"
       ]
      },
      "hours": {
       "type": [
        "null",
        "number"
       ]
      },
      "source": {
       "type": [
        "null",
        "string"
       ]
      },
      "candles": {
       "type": [
        "null",
        "number"
       ]
      },
      "reasons": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "summary": {
       "type": [
        "null",
        "string"
       ]
      },
      "verdict": {
       "type": [
        "null",
        "string"
       ]
      },
      "degraded": {
       "type": [
        "boolean",
        "null"
       ]
      },
      "rangePct": {
       "type": [
        "null",
        "number"
       ]
      },
      "sourceUrl": {
       "type": [
        "null",
        "string"
       ]
      },
      "disclaimer": {
       "type": [
        "null",
        "string"
       ]
      },
      "notChecked": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "thresholds": {
       "type": [
        "null",
        "object"
       ],
       "properties": {
        "highAnnualizedPct": {
         "type": [
          "null",
          "number"
         ]
        },
        "moderateAnnualizedPct": {
         "type": [
          "null",
          "number"
         ]
    
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/perp-realized-volatility-signal-3db73d60/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from derivatives.x402tookit.com](https://www.zero.xyz/host/derivatives.x402tookit.com/llms.txt)