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API · /fxvolatility-api

FX Volatility API

healthy 3,172 Subscribers

A live forex volatility analytic as an API, computed from European Central Bank daily reference rates. For any currency pair it returns the realised annualised volatility — the standard deviation of daily log returns scaled to a year — along with daily-return statistics; for the whole basket it ranks 30+ currencies by their average pairwise volatility, showing who is calm and who is choppy. The risk and position-sizing input forex, options and trading desks need. Look up a pair, rank the basket, or get one currency's volatility profile. Live, no key. Distinct from raw exchange-rate and currency-strength APIs — this is the realised-volatility (risk) measure.

#forex #volatility #fx #risk #ecb #trading #realized-volatility
api.oanor.com/fxvolatility-api
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Machine-readable spec so AI agents can integrate this API.

/api/fxvolatility-api/openapi.json
/api/fxvolatility-api/llms.txt

Discovery: GET /api/index.json lists every API.

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
184 ms
Server probes · 24h
Subscribers
3,172
active
Total calls
24
last 7 days
status Full status page → · 12 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 300 calls / month
  • 3 requests / second
  • Hard cap (429 above quota, no overage)
  • 300 calls/month
  • 3 req/sec
  • Pair vol, basket ranking, currency
  • No credit card
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Trader

€9.00 /month

  • 11,000 calls / month
  • 10 requests / second
  • Hard cap (429 above quota, no overage)
  • 11k calls/month
  • 10 req/sec
  • Email support
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Pro

€25.00 /month

  • 55,000 calls / month
  • 25 requests / second
  • Hard cap (429 above quota, no overage)
  • 55k calls/month
  • 25 req/sec
  • Priority support
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Business

€58.00 /month

  • 280,000 calls / month
  • 45 requests / second
  • Hard cap (429 above quota, no overage)
  • 280k calls/month
  • 45 req/sec
  • Dedicated SLA
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Built by

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Related APIs

Other APIs with overlapping tags.

Currency Converter API

Live foreign-exchange conversion across 160+ world currencies — the plain, developer-friendly converter. Get the latest rates for any base currency, convert an amount between any two currencies, read the rate (and inverse) for a single pair, or list every supported currency. Rates are read live from an open exchange-rate source that aggregates a broad set of feeds and covers far more currencies than ECB-only data — including emerging-market and exotic currencies such as the Nigerian naira, Indian rupee or Vietnamese dong. This is the everyday convert / latest-rates utility a checkout, invoice, pricing page or travel app needs — distinct from the FX analytics APIs in the catalogue (historical date ranges, pip and position-size calculators, triangular-arbitrage path maths, currency indices), which compute on rates rather than simply converting them.

api.oanor.com/currencyconverter-api

NBKR Kyrgyzstan FX API

Live official foreign-exchange reference rates from the National Bank of the Kyrgyz Republic (NBKR), read straight from the bank's published fixing — no key on the data, nothing cached, nothing stored. Get every currency the NBKR fixes against the Kyrgyzstani som (KGS) for the day, each normalized to a clean per-unit rate; look one currency up on its own; pull the separate weekly accounting rates (valid for seven days); or convert any amount between two listed currencies by crossing through the som. The som is the base and rates carry the NBKR fixing date. This is the Kyrgyzstan national-central-bank feed specifically — a distinct official source, separate from the other FX, central-bank and market APIs in the catalogue, so treasury, invoicing, payroll and accounting workflows that need the legally-referenced KGS rate can read it directly.

api.oanor.com/nbkr-api

Currency Index API

Live currency-index maths that FX desks run to turn a set of exchange rates into a single index value, computed on demand from the rates you pass in — no key, no cache, nothing stored. The dxy endpoint computes the US Dollar Index (USDX) from its six component rates using the official ICE weights and formula — feed in EUR/USD, USD/JPY, GBP/USD, USD/CAD, USD/SEK and USD/CHF and get the index value the way the exchanges calculate it. The index endpoint builds an arbitrary weighted index from your own components: geometric (the standard for currency indices) or arithmetic, with a scaling constant and negative weights for inversely-quoted pairs. The basket endpoint computes a trade-weighted index normalised to 100, showing how a currency has moved against a basket from a set of reference rates — above 100 means it strengthened. This is an index-construction engine, distinct from published effective-exchange-rate feeds and strength meters: you supply the rates and weights and it returns the index, deterministically. Works for any custom basket. Computed locally, so it is instant and private. Ideal for FX dashboards, custom dollar/euro indices, back-tests and macro tools. Live, nothing stored. 3 compute endpoints. For published effective-exchange-rate data use a central-bank or BIS API.

api.oanor.com/currencyindex-api

FX Carry Trade API

Live carry-trade and rollover analytics that FX traders run before borrowing a low-yield currency to buy a high-yield one, computed on demand from the interest rates you pass in — no key, no cache, nothing stored. The carry endpoint returns the interest-rate differential, the carry income over a holding period, the financing-adjusted yield and the leveraged return on margin, so you see exactly what a position earns. The rollover endpoint returns the daily, weekly and monthly swap — positive when you receive carry, negative when you pay it — the number a broker debits or credits each night. The breakeven endpoint returns how far the spot rate can move against the position before the carry is wiped out: the cushion the carry buys you, and the break-even spot level. This is an interest-rate and carry engine, distinct from pip and lot calculators and price tools: it turns two yields, leverage and time into the income and the risk cushion of a carry trade. The carry trade is one of the most-used FX strategies (think funding in yen to hold a higher-yielding currency), and these are the numbers behind it. Computed locally and deterministically, so it is instant and private. Ideal for FX dashboards, strategy back-tests, position sizers and trading tools. Rates are annual percentages (5.5 = 5.5%). Live, nothing stored. 3 compute endpoints. For live policy rates feed them in from a central-bank or rates API.

api.oanor.com/carrytrade-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for FX Volatility API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call FX Volatility API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for FX Volatility API?
Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.
How much does FX Volatility API cost?
FX Volatility API has a free tier with 100 calls / month. Paid plans start at €9.00 / month with higher quotas and faster rate limits.
Can I cancel my subscription anytime?
Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.
Is FX Volatility API GDPR-compliant?
All requests to FX Volatility API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.

Pick an endpoint from the list on the left to see its details and try it.

Code snippets

Sign up to get an API key, then call any path under your slug.

curl https://api.oanor.com/fxvolatility-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/fxvolatility-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/fxvolatility-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);
import requests
r = requests.get(
    "https://api.oanor.com/fxvolatility-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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