---
title: "Realized volatility for 16 assets (7d/30d/90d annualized, three estimators) — $0.02/call"
method: GET
path: "/api/v1/volatility/{asset}"
tags: ["risk", "paid"]
---

# Realized volatility for 16 assets (7d/30d/90d annualized, three estimators) — $0.02/call

`GET /api/v1/volatility/{asset}`

## Request

- Base URL: `https://kronossignals.com` (the document declares no server; this is the origin it was published from)
- URL: `https://kronossignals.com/api/v1/volatility/{asset}`
- Auth: none declared

Computes 7-day, 30-day and 90-day annualized realized volatility from closed Binance daily candles for any of the 16 supported assets, with three estimators (close-to-close, Parkinson, Garman-Klass), annualized by sqrt(252), plus percentile context and a vol-regime label. $0.02 USDC via x402.

## Path parameters

- `asset` 'btc' | 'eth' | 'sol' | 'bnb' | 'xrp' | 'doge' | 'ada' | 'avax' | 'link' | 'dot' | 'ltc' | 'trx' | 'bch' | 'atom' | 'near' | 'apt', required

## Response `200`

Realized volatility returned (payment verified)

- object
  - `asset` string, required
  - `symbol` string, required
  - `term_structure` object[], required
    - `window` '7d' | '30d' | '90d'
    - `n_candles` integer
    - `close_to_close` number, nullable
    - `parkinson` number, nullable
    - `garman_klass` number, nullable
    - `percentile` number, nullable
    - `vol_regime` string, nullable
    - `best_estimator` string, nullable
  - `percentile_context` object[]
  - `vol_7d_annualized` number, nullable, required
  - `vol_30d_annualized` number, nullable, required
  - `source` string, required
  - `as_of` string, date-time, required
  - `disclaimer` string, required

## Other responses

- `402`: Payment Required — x402 micropayment instructions in response body

---

[API](https://skmtc.dev/kronossignals/apis/kronos-crypto-data-api.md) · [All operations](https://skmtc.dev/kronossignals/apis/kronos-crypto-data-api/llms.txt) · [OpenAPI document](https://skmtc.dev/kronossignals/apis/kronos-crypto-data-api/revisions/bfdcf7230e93?raw)