# DripMetrics AI | Volatility-of-Volatility Metric

> DripMetrics AI | Volatility-of-Volatility Metric is a paid API for AI agents from api.dripmetrics.ai, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-13).

Computes the volatility-of-volatility (vol-of-vol) for a crypto trading pair over a specified lookback window using real-time trade data from Binance or Coinbase.

## Facts

- Endpoint: GET https://api.dripmetrics.ai/metrics/vol-of-vol
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/dripmetrics-ai-volatility-of-volatility-metric-c014ca1d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_BsHSmH-qnM9q1fO4_5t8d

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 dripmetrics-ai-volatility-of-volatility-metric-c014ca1d
```

Example prompt: What's the current vol-of-vol for BTC-USD on Coinbase over the last 1-hour window?

## When to prefer this

Choose this endpoint when you need a real-time, on-demand second-order volatility metric (volatility of volatility) computed from raw trade-level data on Binance or Coinbase. It is preferable over generic volatility endpoints when you specifically need to measure the stability or instability of the volatility regime itself, not just realized volatility. Best suited for trading signal generation, risk dashboards, and pre-trade regime assessment.

## Known failure modes

- Unsupported pair/exchange combination returns an error or partial data flag
- 2h and 3h windows only supported for BTCUSDT/BTC-USD — other pairs will fail or return partial coverage
- Insufficient recent trade data results in low coverageRatio and partialData=true
- Invalid or missing query parameters (pair, exchange, window) return a 400-level error
- Payment failure via x402 protocol results in 402 response before metric is computed

## How this service works

DripMetricsAI (api description at https://dripmetrics.ai/) provides on-demand market microstructure and risk metrics for agents and developers. Agents can pay per request via x402 and receive structured JSON metrics without subscriptions or API keys. Vol of Vol measures the volatility of realized volatility across sub-intervals. Discovery examples use the latest 30m window.

## Output

Returns a JSON object containing the vol-of-vol scalar value (e.g. 0.118), the trading pair and exchange used, the requested and effective window duration, a coverage object (coverage ratio, partial data flag, complete fetch flag, error message), the number of trades used in the computation, and timestamps for the first trade, last trade, and computation time.

## 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",
      "exchange",
      "window"
     ],
     "properties": {
      "pair": {
       "type": "string",
       "description": "Exchange-native trading pair symbol such as BTCUSDT, ETH-USD, BTC, or xyz:TSLA."
      },
      "window": {
       "enum": [
        "30m",
        "1h",
        "2h",
        "3h"
       ],
       "type": "string",
       "description": "Lookback window. Hyperliquid supports 30m and 1h; 2h and 3h are currently BTCUSDT/BTC-USD only."
      },
      "exchange": {
       "enum": [
        "binance",
        "coinbase"
       ],
       "type": "string",
       "description": "Exchange adapter to source recent trades from."
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "metric",
      "pair",
      "exchange",
      "window",
      "value",
      "computedAt",
      "tradeCount",
      "firstTradeTime",
      "lastTradeTime",
      "coverage"
     ],
     "properties": {
      "pair": {
       "type": "string"
      },
      "value": {
       "type": "number"
      },
      "metric": {
       "type": "string"
      },
      "window": {
       "enum": [
        "30m",
        "1h",
        "2h",
        "3h"
       ],
       "type": "string"
      },
      "coverage": {
       "type": "object",
       "required": [
        "requestedWindowMinutes",
        "effectiveWindowMinutes",
        "coverageRatio",
        "partialData",
        "completeFetch",
        "errorMessage"
       ],
       "properties": {
        "partialData": {
         "type": "boolean"
        },
        "errorMessage": {
         "type": [
          "string",
          "null"
         ]
        },
        "completeFetch": {
         "type": "boolean"
        },
        "coverageRatio": {
         "type": "number",
         "maximum": 1,
         "minimum": 0
        },
      
… (truncated)
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "pair": "BTC-USD",
  "value": 0.118224,
  "metric": "vol-of-vol",
  "window": "30m",
  "coverage": {
   "partialData": false,
   "errorMessage": null,
   "completeFetch": true,
   "coverageRatio": 1,
   "effectiveWindowMinutes": 30,
   "requestedWindowMinutes": 30
  },
  "exchange": "coinbase",
  "components": {},
  "computedAt": "2026-05-23T14:00:00.000Z",
  "tradeCount": 428,
  "lastTradeTime": "2026-05-23T13:59:58.000Z",
  "firstTradeTime": "2026-05-23T13:00:02.000Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/dripmetrics-ai-volatility-of-volatility-metric-c014ca1d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.dripmetrics.ai](https://www.zero.xyz/host/api.dripmetrics.ai/llms.txt)