← Finance & Currency

Volatility

GET /volatility

Measure the volatility of a currency pair by calculating the standard deviation of daily rate changes over a configurable period (default 30 days). Returns the volatility score and mean daily change percentage. Essential for risk assessment in international trade, hedging decisions, setting appropriate margins on currency conversion services, and understanding how stable or turbulent a currency pair has been recently.

Parameters

base required

Base currency

target required

Target currency

period optional default: 30

Days

Example Requests

Basic usage
curl "https://nordapi.ee/api/v1/volatility?base=EUR&target=USD"
EUR/USD 30-day volatility (default)
curl "https://nordapi.ee/api/v1/volatility?base=EUR&target=USD"
GBP/NOK 14-day volatility
curl "https://nordapi.ee/api/v1/volatility?base=GBP&target=NOK&period=14"
USD/JPY 60-day volatility
curl "https://nordapi.ee/api/v1/volatility?base=USD&target=JPY&period=60"

Live Response 

{
  "base": "EUR",
  "daily_changes": [
    {
      "change_pct": 0.5744625293759248,
      "date": "2026-03-20"
    },
    {
      "change_pct": 0.0,
      "date": "2026-03-21"
    },
    {
      "change_pct": 0.0,
      "date": "2026-03-22"
    },
    {
      "change_pct": 0.0,
      "date": "2026-03-23"
    },
    {
      "change_pct": 0.35482475118996104,
      "date": "2026-03-24"
    },
    {
      "change_pct": -0.20696791997240427,
      "date": "2026-03-25"
    },
    {
      "change_pct": 0.17283097131005876,
      "date": "2026-03-26"
    },
    {
      "change_pct": -0.45721187025534854,
      "date": "2026-03-27"
    },
    {
      "change_pct": -0.19065776930409914,
      "date": "2026-03-28"
    },
    {
      "change_pct": 0.0,
      "date": "2026-03-29"
    },
    {
      "change_pct": -0.28653295128939826,
      "date": "2026-03-30"
    },
    {
      "change_pct": 0.12190874259839778,
      "date": "2026-03-31"
    },
    {
      "change_pct": 0.9305966255000869,
      "date": "2026-04-01"
    },
    {
      "change_pct": -0.6893580353295993,
      "date": "2026-04-02"
    },
    {
      "change_pct": 0.0,
      "date": "2026-04-03"
    },
    {
      "change_pct": 0.0,
      "date": "2026-04-04"
    },
    {
      "change_pct": 0.0,
      "date": "2026-04-05"
    }
  ],
  "mean_daily_change_pct": 0.01905265140138705,
  "period": 17,
  "success": true,
  "target": "USD",
  "volatility": 0.3602306074777228
}

Example Response

{"success":true,"volatility":0.42,"mean_daily_change_pct":0.12}
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