# DripMetrics AI Historical Volatility

> DripMetrics AI Historical Volatility 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).

Returns annualized realized volatility for a Hyperliquid market computed from 1-minute candle data over the latest 30-minute or 1-hour window

## Facts

- Endpoint: POST https://api.dripmetrics.ai/hyperliquid/historical-volatility
- 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/api-dripmetrics-ai-68771f5c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_3To-QqzPVoO18a4muMfVM

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 api-dripmetrics-ai-68771f5c -d '<json body>'
```

Example prompt: What's the annualized realized volatility for BTC on Hyperliquid over the last 1 hour? I want the DripMetrics candle-derived estimate so I can size my position risk.

## When to prefer this

Use this endpoint when you need on-demand, pay-per-use annualized realized volatility for a specific Hyperliquid perpetual market without requiring a subscription or API key. Ideal for agents that need short-window (30m or 1h) volatility estimates for position sizing, risk management, or market regime detection. Prefer this over broader market data APIs when you specifically need candle-derived microstructure metrics from Hyperliquid and want to pay only per request via x402.

## Known failure modes

- Invalid or unsupported market symbol returns an error response
- Unsupported window parameter (not 30m or 1h) returns a validation error
- Hyperliquid candle data temporarily unavailable causes a service error
- Insufficient payment or missing x402 payment header results in payment required response
- Network timeouts if Hyperliquid upstream is slow

## How this service works

DripMetricsAI (https://dripmetrics.ai/) provides on-demand crypto market microstructure metrics, Hyperliquid candle metrics, Polymarket diagnostics, and on-chain DefiLlama metrics for agents, dashboards, and trading workflows.

## Output

A structured JSON object containing the annualized realized volatility estimate for the specified Hyperliquid market, derived from 1-minute public candle snapshots over either a 30-minute or 1-hour lookback window. The response includes the computed volatility figure as a numerical value suitable for quantitative use cases.

## Example request

```json
{
 "pair": "BTC",
 "window": "1h"
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "pair": "BTC",
  "value": 0.734214,
  "metric": "historical-volatility",
  "source": {
   "candles": "https://api.hyperliquid.xyz/info"
  },
  "window": "30m",
  "interval": "1m",
  "components": {
   "intervals": 29,
   "intervalsPerYear": 525600,
   "intervalVolatility": 0.00313924
  },
  "computedAt": "2026-05-29T16:00:00.000Z",
  "sampleSize": {
   "candles": 30
  },
  "lastCandleTime": "2026-05-29T15:59:59.999Z",
  "firstCandleTime": "2026-05-29T15:30:00.000Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-dripmetrics-ai-68771f5c/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)