# Kronos Signals BTC Options IV Surface

> Kronos Signals BTC Options IV Surface is a paid API for AI agents from kronossignals.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-15).

Returns the implied volatility surface for Bitcoin options from Deribit, including ATM IV, IV rank/percentile, term structure, risk reversals, wing IVs, max-pain strikes, and a vol-regime label.

## Facts

- Endpoint: GET https://kronossignals.com/api/v1/options-iv/btc
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kronos-signals-btc-options-iv-surface-6bf080e5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TYoRhi6Gr_htcFAzVUTWG

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 kronos-signals-btc-options-iv-surface-6bf080e5
```

Example prompt: What does the Bitcoin options vol surface look like right now — give me the ATM IV, IV rank, term structure shape, 25-delta risk reversal, and what vol regime we're in.

## When to prefer this

Use this endpoint when you need a comprehensive, pre-computed BTC options volatility surface in a single call, including term structure shape, skew, and regime classification — rather than raw options chains that require manual computation. Ideal for agents making trading decisions, building vol dashboards, or needing quick vol regime context without subscribing to a dedicated options data provider.

## Known failure modes

- Deribit and OKX both unreachable: service returns error or stale cache
- Payment not provided or invalid x402 header: 402 Payment Required response
- Cache miss on fresh startup with no historical IV data: IV rank/percentile may be unavailable
- Rate limiting or network timeout on upstream options APIs

## How this service works

Implied volatility surface for BTC and ETH from Deribit options (public API, no auth). Returns ATM IV (annualized %), IV rank and IV percentile from Kronos iv_history (daily cron), term structure (weekly/1m/3m ATM IV + contango/backwardation/flat shape label), 25-delta risk reversal (BS-approximated strikes), 10-delta wing IVs, max-pain strike across top-5 expiries, and a vol-regime label. Falls back to OKX if Deribit is unreachable. $0.03 USDC via x402.

## Output

Returns annualized ATM implied volatility (%), IV rank, IV percentile derived from historical data, a term structure object with weekly/1-month/3-month ATM IVs and a shape label (contango/backwardation/flat), 25-delta risk reversal with BS-approximated strikes, 10-delta wing IVs, max-pain strikes across the top 5 expiries, and a vol-regime label. Data is sourced from Deribit (OKX fallback) and cached for 1 hour.

## 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"
    },
    "pathParams": {
     "type": "object"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/kronos-signals-btc-options-iv-surface-6bf080e5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kronossignals.com](https://www.zero.xyz/host/kronossignals.com/llms.txt)