# Stelar Digital Crypto Volatility & Drawdown Risk Regime

> Stelar Digital Crypto Volatility & Drawdown Risk Regime is a paid API for AI agents from api.stelardigital.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-16).

Returns current ATR-based volatility risk regime (low/med/high) for a crypto asset by comparing current ATR% against its 30-day 80th-percentile baseline, helping agents size positions or widen stops.

## Facts

- Endpoint: GET https://api.stelardigital.com/risk
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/stelar-digital-crypto-volatility-drawdown-risk-regime-f3fb8454
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_n-vJS4r05R83a_WGQlnDk

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 stelar-digital-crypto-volatility-drawdown-risk-regime-f3fb8454
```

Example prompt: What's the current volatility risk regime for SOL — is it low, medium, or high compared to its 30-day baseline, and should I widen my stops?

## When to prefer this

Use this endpoint when an agent needs to make position sizing or stop-loss decisions based on current volatility conditions for a specific crypto asset. It is preferable over general market regime endpoints when the concern is specifically drawdown risk and ATR-relative volatility rather than trend direction. It complements the /regime endpoint by focusing on risk amplitude rather than directional classification.

## Known failure modes

- Unsupported asset symbol returns a 400 or validation error — only ADA, BTC, DOGE, ETH, LTC, SOL, XLM, XRP are accepted
- Missing asset query parameter results in a schema validation error
- Service unavailability or data staleness may return a 5xx error
- Payment failure (x402) results in a 402 response requiring USDC payment

## How this service works

Volatility and drawdown risk regime for a crypto asset — current ATR percent versus its 30-day p80 baseline, labeled low/med/high, extending the same classifier behind /regime. For agents sizing positions or deciding whether to widen stops given current volatility.

## Output

Returns a volatility risk regime label (low, medium, or high) for the requested crypto asset, derived from comparing the current ATR percentage against the asset's 30-day 80th-percentile baseline, along with supporting metrics like current ATR% and baseline value.

## 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"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "asset"
     ],
     "properties": {
      "asset": {
       "enum": [
        "ADA",
        "BTC",
        "DOGE",
        "ETH",
        "LTC",
        "SOL",
        "XLM",
        "XRP"
       ],
       "type": "string",
       "description": "Asset symbol, e.g. SOL"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "note": "Volatility below its typical range — calmer conditions.",
  "as_of": 1720400000,
  "asset": "SOL",
  "symbol": "SOLUSDT",
  "volatility": 2.1,
  "atr_p80_30d": 3.4,
  "drawdown_risk": "low"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/stelar-digital-crypto-volatility-drawdown-risk-regime-f3fb8454/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.stelardigital.com](https://www.zero.xyz/host/api.stelardigital.com/llms.txt)