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API · /bigmac-api

Big Mac Index API

healthy 3,786 Subscribers

The Economist's Big Mac Index — "burgernomics" — as an API: how over- or under-valued the world's currencies are, measured by the price of a Big Mac. The same burger costing different amounts across countries reveals purchasing-power-parity (PPP) misalignment in exchange rates. The index endpoint returns the latest release for every country — the local Big Mac price, its US-dollar price at the market exchange rate, and the raw and GDP-adjusted over/under-valuation of that currency against a chosen base (USD, EUR, GBP, JPY or CNY). The country endpoint returns one country's full history — the valuation trend over every release since 2000. The extremes endpoint returns the most over-valued and most under-valued currencies in the latest release. A positive valuation means the currency is over-valued versus the base; negative means under-valued; the GDP-adjusted figure corrects for cheaper labour in poorer countries. This is a PPP / currency-valuation data-cut — a fundamental gauge, not a live FX tick — distinct from the spot-rate, central-bank and conversion APIs in the catalogue. Live from the open dataset, no key on the upstream, nothing stored.

#big-mac-index #burgernomics #ppp #currency-valuation #forex #economics #the-economist #purchasing-power
api.oanor.com/bigmac-api
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Machine-readable spec so AI agents can integrate this API.

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

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

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
94 ms
Server probes · 24h
Subscribers
3,786
active
Total calls
0
last 7 days
status Full status page → · 4 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 24,000 calls / month
  • 5 requests / second
  • Hard cap (429 above quota, no overage)
  • 24,000 calls/month
  • 5 req/sec
  • Index, country history & extremes
  • No credit card
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Starter

€5.75 /month

  • 290,000 calls / month
  • 12 requests / second
  • Hard cap (429 above quota, no overage)
  • 290k calls/month
  • 12 req/sec
  • All bases (USD/EUR/GBP/JPY/CNY)
  • Email support
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Pro

€16.90 /month

  • 1,230,000 calls / month
  • 30 requests / second
  • Hard cap (429 above quota, no overage)
  • 1.23M calls/month
  • 30 req/sec
  • PPP research & dashboards
  • Priority support
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Scale

€39.40 /month

  • 4,400,000 calls / month
  • 80 requests / second
  • Hard cap (429 above quota, no overage)
  • 4.4M calls/month
  • 80 req/sec
  • Data-platform scale
  • Dedicated SLA
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Related APIs

Other APIs with overlapping tags.

US Debt Composition API

What the US national debt is actually made of, served from the Treasury's Monthly Statement of the Public Debt. The headline debt-to-the-penny figure is one number; this is the breakdown — how the roughly $39 trillion splits across Treasury Bills, Notes, Bonds, TIPS and Floating-Rate Notes (the marketable, tradable debt) versus the non-marketable debt (the Government Account Series held by federal trust funds, Savings Bonds, and State and Local Government Series). The composition endpoint returns the latest full breakdown by security class, each with its share of the total and its split between debt held by the public and intragovernmental holdings. The marketable endpoint isolates the tradable securities (Bills/Notes/Bonds/TIPS/FRN) with each one's share of marketable debt — the issuance mix that rates traders and the Treasury's quarterly refunding watch. The history endpoint returns one security class's outstanding amount month by month. This is the debt-structure data-cut, distinct from the debt-to-the-penny total, the fiscal-deficit and the yield-curve APIs in the catalogue. Live, updated monthly, no key on the upstream, nothing stored.

api.oanor.com/debtcomposition-api

US Treasury Cash (TGA) API

The US federal government's checking account — the Treasury General Account (TGA) at the Federal Reserve — served from the official Daily Treasury Statement. The TGA is where the government's cash sits, and its day-to-day balance is a closely watched market-liquidity gauge: a falling TGA injects cash into the financial system, a rising one drains it. The balance endpoint returns the latest day's opening balance, total deposits, total withdrawals, closing balance and the net change, in millions and billions of dollars. The history endpoint returns the daily closing TGA balance over a window. The flows endpoint returns the latest day's largest cash deposits and withdrawals by category — withheld and corporate taxes coming in, Social Security and debt redemptions going out — so you can see exactly where the money moved. This is the Treasury-cash and fiscal-liquidity data-cut, distinct from the national-debt, fiscal-deficit and yield-curve APIs in the catalogue. Live, updated each business day, no key on the upstream, nothing stored.

api.oanor.com/treasurycash-api

TIPS Real Yields & Breakeven Inflation API

The inflation-adjusted side of the US Treasury yield curve, served from the Treasury's official daily feeds. The realyields endpoint returns the latest TIPS real yield curve — the inflation-protected (real) yield at the 5, 7, 10, 20 and 30-year maturities. The breakeven endpoint returns market-implied inflation: at each maturity it takes the nominal Treasury yield minus the real yield, which is the average annual inflation rate the bond market is pricing in over that horizon, and returns it alongside the nominal and real components. The history endpoint returns the daily time series of the real yield, the nominal yield and the breakeven inflation rate for one maturity over a year. A 10-year breakeven of 2.3 means the market is pricing roughly 2.3% average inflation over the next decade — a core gauge for rates traders, macro funds and inflation hedgers. This is the real-yield and inflation-expectations data-cut — distinct from the nominal yield-curve, the world-government-bond and the central-bank-rate APIs in the catalogue. Live, no key on the upstream, nothing stored.

api.oanor.com/realyields-api

National Bank of Kazakhstan (NBK) FX API

Live official exchange rates from the National Bank of the Republic of Kazakhstan (NBK), the central bank that sets the tenge (KZT) reference rate — read straight from the bank's public rates feed, no key, nothing stored. The rates endpoint returns the full official board for any date: every foreign currency the bank quotes against the tenge with its rate, the nominal it is quoted per, the daily direction (up / down / flat) and the change. The currency endpoint returns a single currency's official rate, for today or any past date. The convert endpoint converts an amount between the tenge and any quoted currency at the official rate — both directions. Look up the tenge value of the US dollar, euro, Russian ruble, Chinese yuan and 35 more currencies, or pull a historical board by date. This is the Kazakhstani central-bank FX cut (KZT reference rates) — distinct from the crypto exchange-ticker and the other central-bank APIs in the catalogue.

api.oanor.com/nbkz-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Big Mac Index API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Big Mac Index API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Big Mac Index 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 Big Mac Index API cost?
Big Mac Index API has a free tier with 100 calls / month. Paid plans start at €5.75 / 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 Big Mac Index API GDPR-compliant?
All requests to Big Mac Index 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/bigmac-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/bigmac-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/bigmac-api/SOME_PATH");
curl_setopt($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/bigmac-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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