{
  "x402Version": 2,
  "id": 393,
  "slug": "393",
  "resource": "https://kronossignals.com/api/v1/options-iv/btc",
  "description": "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.",
  "type": "http",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0x36038e1d712c5e39f35952164ec58ec2b96caee7",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "30000",
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "bazaar": {
      "info": {
        "input": {
          "method": "GET",
          "pathParams": {},
          "queryParams": {},
          "type": "http"
        },
        "output": {
          "example": {
            "as_of": "2026-01-01T00:00:00.000Z",
            "asset": "BTC-USD",
            "atm_iv": 42.8,
            "available": true,
            "data_source": "deribit",
            "disclaimer": "Options data from Deribit public API. Informational only.",
            "iv_history_days": 45,
            "iv_percentile": 61.2,
            "iv_rank": 58.3,
            "iv_rank_note": "Based on 45 trading days of ATM IV history.",
            "max_pain_strike": 60000,
            "skew_25d": 3.8,
            "skew_note": "25-delta risk reversal: put IV minus call IV at BS-approximated 25-delta strikes.",
            "term_structure": [
              {
                "atm_iv": 44.2,
                "days_to_expiry": 3,
                "expiry": "5JUL26",
                "label": "weekly"
              },
              {
                "atm_iv": 42.5,
                "days_to_expiry": 29,
                "expiry": "31JUL26",
                "label": "1m"
              },
              {
                "atm_iv": 40.1,
                "days_to_expiry": 85,
                "expiry": "25SEP26",
                "label": "3m"
              }
            ],
            "term_structure_shape": "contango",
            "underlying_price": 61200,
            "vol_regime": "normal",
            "vol_regime_note": "ATM IV 42.8%, term structure contango.",
            "wing_10d_call_iv": 38.5,
            "wing_10d_put_iv": 49.2
          },
          "example_kind": "illustrative_schema_only",
          "example_note": "Placeholder values and timestamps, not market data.",
          "type": "json"
        }
      },
      "routeTemplate": ":var1",
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "pathParams": {
                "type": "object"
              },
              "queryParams": {
                "properties": {},
                "type": "object"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "example": {
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
              "type"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    }
  },
  "tags": [
    "bazaar"
  ],
  "sourceHost": "kronossignals.com",
  "lastUpdated": "2026-09-10T01:28:13.972Z",
  "quality": {
    "calls30d": 11,
    "uniquePayers30d": 7,
    "lastCalledAt": "2026-09-10T01:28:13.813Z"
  },
  "liveness": {},
  "verified": false,
  "featured": false,
  "provider": {
    "host": "kronossignals.com",
    "manifest_name": "kronossignals.com",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-09-18T22:00:31.484Z"
  }
}