# Risk Pulse: Vol Expansion Context

> Risk Pulse: Vol Expansion Context is a paid API for AI agents from www.entropyindex.com, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-13).

Returns a geopolitical and crypto volatility heat check across countries, chokepoints, and crypto assets to inform position sizing decisions

## Facts

- Endpoint: GET https://www.entropyindex.com/api/v1/risk/vol-expansion-context
- Price: $0.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/risk-pulse-vol-expansion-context-99893409
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XzQ7_K9hlMDmJ-Qhrnp_4

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 risk-pulse-vol-expansion-context-99893409
```

Example prompt: Before I size into this Bitcoin perp, can you do a quick probe-level heat check on the vol expansion context — is anything hot geopolitically or in perp structure right now?

## When to prefer this

Use this endpoint when you need a fast, cheap ($0.25 probe) pre-trade or in-trade volatility regime check covering geopolitical entities (Taiwan, China, US), physical chokepoints (Hormuz, Gibraltar), or crypto (Bitcoin) with perp-specific context (funding flip, rekt guard). Prefer this over full macro research tools when you need a quick binary 'is anything hot' signal rather than a detailed analysis. Choose probe depth for frequent polling and clock/full depth for deeper context when the heat check returns elevated risk.

## Known failure modes

- Invalid entity slug returns an error or empty result
- Unsupported depth enum value rejected with validation error
- Service unavailable during high-traffic market events
- Payment not processed results in 402 response
- Stale data if upstream geopolitical feeds are delayed

## How this service works

Risk Pulse: Vol expansion context — Returns a heat check before you size — or poll again while in. Countries, chokepoints, and crypto (Taiwan, Hormuz, Bitcoin) plus perp context (funding flip, rekt guard, tape vs structure). $0.25. Is anything hot? Not a trade signal.

## Output

A heat check object indicating whether volatility is elevated for the requested entity (country, chokepoint, or crypto asset), including perp-specific context such as funding flip status, rekt guard signal, and tape vs structure assessment. Returns a regime status indicator. At probe depth ($0.25), this is a lightweight boolean-style 'is anything hot' check, not a full trade signal or recommendation.

## Request schema (JSON Schema)

```json
{
 "name": "Risk Pulse: Vol expansion contex",
 "tags": [
  "regime",
  "attestation",
  "chokepoint",
  "geo",
  "perps"
 ],
 "type": "object",
 "version": "1.0.0",
 "category": "trading",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "properties": {
      "entity": {
       "type": "string",
       "title": "Entity",
       "description": "Country, chokepoint, or crypto slug — taiwan, hormuz, bitcoin, global-financial-system"
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "depth": {
       "enum": [
        "probe",
        "clock",
        "full"
       ],
       "type": "string",
       "title": "Depth",
       "description": "Check (probe $0.25), The Call (clock $5), The Book (full $8)"
      }
     }
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {}
   }
  }
 },
 "description": "Risk Pulse: Vol expansion context — Returns a heat check before you size — or poll again while in. Countries, chokepoints, and crypto (Taiwan, Hormuz, Bitcoin) plus perp context (funding flip, rekt guard, tape vs structure). $0.25. Is anything hot? Not a trade signal."
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/risk-pulse-vol-expansion-context-99893409/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.entropyindex.com](https://www.zero.xyz/host/www.entropyindex.com/llms.txt)