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API · /numberformat-api

Number & Currency Formatter API

healthy 4,304 Subscribers

Format numbers for any locale using full ICU data — the correct way to display money, percentages and measurements per region. Pass a value and a style and the format endpoint returns the locale-correct string: decimal, currency (any ISO 4217 code, with the right symbol and grouping — e.g. 1.234.567,89 € in de-DE, $1,234,567.89 in en-US, ￥1,234,567 in ja-JP, and the Indian lakh grouping 12,34,567.89 in hi-IN), percent, or unit (e.g. 80 km/h). Control the locale (BCP 47), minimum/maximum fraction digits, grouping, sign display and notation (standard, scientific, engineering or compact like 1.2M). A parts endpoint returns the formatToParts breakdown (integer, group, decimal, fraction, currency symbol…) for building custom-styled displays. Everything is computed locally with no network calls. Ideal for internationalised UIs, invoices and receipts, dashboards and reports. A locale number/currency formatter — distinct from foreign-exchange rates (currency), number-to-words (numberwords) and the numeral-base converter (baseconvert). No upstream key, no cache.

#number-format #currency #i18n #locale #developer-tools #intl
api.oanor.com/numberformat-api
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Machine-readable spec so AI agents can integrate this API.

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

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

Number & Currency Formatter API — live data on the oanor API marketplace

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
80 ms
Server probes · 24h
Subscribers
4,304
active
Total calls
57
last 7 days
status Full status page → · 9 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 2,080 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 2,080 calls/month
  • 2 req/sec
  • Format + parts, all styles
  • No credit card
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Starter

€6.10 /month

  • 39,500 calls / month
  • 8 requests / second
  • Hard cap (429 above quota, no overage)
  • 39.5k calls/month
  • 8 req/sec
  • Full ICU locales + compact
  • Email support
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Pro

€20.10 /month

  • 210,000 calls / month
  • 20 requests / second
  • Hard cap (429 above quota, no overage)
  • 210k calls/month
  • 20 req/sec
  • i18n UI & invoicing pipelines
  • Priority support
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Mega

€52.40 /month

  • 805,000 calls / month
  • 50 requests / second
  • Hard cap (429 above quota, no overage)
  • 805k calls/month
  • 50 req/sec
  • Global-app scale
  • Dedicated SLA
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Related APIs

Other APIs with overlapping tags.

Central Bank of Myanmar FX API — oanor API marketplace

Central Bank of Myanmar FX API

Official daily foreign-exchange reference rates published by the Central Bank of Myanmar (CBM), quoted against the Myanmar Kyat (MMK). Read every CBM reference rate in one call, look up a single currency, or convert any amount between two quoted currencies (or MMK) using the central-bank cross rate. CBM follows a per-100 quoting convention for its low-value currencies — Indonesian Rupiah, Japanese Yen, Cambodian Riel, South Korean Won, Lao Kip and Vietnamese Dong are published per 100 units while every other currency is per 1 — so each rate carries both the raw quoted_rate and quoted_per plus a normalized mmk_per_unit, making conversions unambiguous. Rates always resolve to the latest published business-day fixing. Distinct from our other central-bank feeds (Bosnia, North Macedonia, Romania, Moldova, Nepal): this surfaces the Myanmar Kyat reference table specifically.

api.oanor.com/myanmar-fx-api

 FX Cross-Rate Heatmap & Matrix API — oanor API marketplace

FX Cross-Rate Heatmap & Matrix API

The full grid of every major currency against every other, with the day's move in each cell, computed live from Yahoo Finance (no key, nothing stored). It is the dashboard every FX desk keeps open: an 8x8 matrix of the majors (USD, EUR, GBP, JPY, CHF, AUD, CAD, NZD) showing the cross rate and the percentage change on the day for every pair at once, so you can see in a single glance which currencies are bid and which are offered across the board. The matrix endpoint returns the whole rate grid plus the matching change-on-the-day heatmap, and derives the strongest and weakest currency from their average move against the basket. The cross endpoint returns one pair's rate and daily change. The currencies endpoint lists what is covered. The FX cross-rate matrix / heatmap cut — distinct from the bring-your-own-rates cross-rate & triangular-arbitrage calculator, the currency-strength meter (one aggregate score per currency) and the single-pair price APIs. It is the whole board, live.

api.oanor.com/fxheatmap-api

 Forex Movers & Performance API — oanor API marketplace

Forex Movers & Performance API

What is actually moving in the currency market right now, computed live from Yahoo Finance (no key, nothing stored). Just as stock and crypto traders watch the day's biggest gainers and losers, FX traders want the pairs on the move — the ones breaking out and breaking down across the majors and crosses. For every pair this measures the change on the day, over the week and over the month, with the day's high and low and where the current rate sits in that day's range. The movers endpoint returns the whole board ranked by daily change — the top gainers and losers — plus the weekly and monthly leaders, so you can see momentum across horizons at a glance. The pair endpoint returns one pair's full performance card. The pairs endpoint lists what is covered. The FX movers / performance-dashboard cut — distinct from the currency-strength meter (which aggregates each currency's move across all its pairs into one score), the FX price, range and volatility APIs. It answers which pairs are moving today, not how strong the euro is.

api.oanor.com/fxmovers-api

 FX Z-Score & Mean-Reversion API — oanor API marketplace

FX Z-Score & Mean-Reversion API

How statistically stretched each currency pair is right now versus its own recent average — the z-score mean-reversion gauge — computed live from Yahoo Finance daily rates (no key, nothing stored). A price alone tells you nothing about whether a pair is cheap or dear; the z-score does: it measures how many standard deviations the current rate sits above or below its rolling mean. A pair two standard deviations above its average is statistically overbought and prone to snap back; two below is oversold. The zscore endpoint returns, for a pair, the current rate, its rolling mean and standard deviation, the z-score, the percent distance from the mean and a plain overbought / oversold label. The screener endpoint scans the major and cross pairs and ranks them by how stretched they are — the most overbought and most oversold at a glance, the mean-reversion opportunity scan. The pairs endpoint lists what is covered. The statistical-stretch / mean-reversion cut for FX — distinct from the FX range, pivot-point, volatility and signals APIs. It answers how far from normal a pair is, not where its support sits or how fast it moves.

api.oanor.com/fxzscore-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Number & Currency Formatter API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Number & Currency Formatter API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Number & Currency Formatter 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 Number & Currency Formatter API cost?
Number & Currency Formatter API has a free tier with 100 calls / month. Paid plans start at €6.10 / 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 Number & Currency Formatter API GDPR-compliant?
All requests to Number & Currency Formatter 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/numberformat-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/numberformat-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/numberformat-api/SOME_PATH");
curl_setopt($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/numberformat-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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