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API · /usfiscal-api

US Federal Fiscal API

healthy 4,819 Subscribers

Live US federal fiscal data from the US Treasury's official FiscalData API — the cost-and-flow side of US public finance. Get the federal budget deficit or surplus by month for the current fiscal year (receipts, outlays and the net) from the Monthly Treasury Statement; the interest the United States pays to service its national debt, by month and fiscal-year-to-date, broken down by security type; and the average interest rate the Treasury pays on each class of its debt (Bills, Notes, Bonds, TIPS) plus the weighted overall rate. Live, no key, nothing cached. Distinct from debt-level (debt-to-the-penny) and auction feeds — this is the deficit, the interest bill and the average rate on the debt.

#us-treasury #fiscal #national-debt #deficit #interest-rates #government #macro #finance
api.oanor.com/usfiscal-api
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Machine-readable spec so AI agents can integrate this API.

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

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

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
573 ms
Server probes · 24h
Subscribers
4,819
active
Total calls
4
last 7 days
status Full status page → · 8 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 3,000 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 3k calls/month
  • 2 req/sec
  • Deficit, interest expense & avg rates
  • No credit card
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Starter

€9.75 /month

  • 72,000 calls / month
  • 6 requests / second
  • Hard cap (429 above quota, no overage)
  • 72k calls/month
  • 6 req/sec
  • Full fiscal-year history
  • Email support
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Pro

€26.50 /month

  • 380,000 calls / month
  • 15 requests / second
  • Hard cap (429 above quota, no overage)
  • 380k calls/month
  • 15 req/sec
  • Priority support
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Business

€64.00 /month

  • 2,300,000 calls / month
  • 40 requests / second
  • Hard cap (429 above quota, no overage)
  • 2.3M calls/month
  • 40 req/sec
  • Dedicated SLA
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Related APIs

Other APIs with overlapping tags.

US Treasury API

US Treasury fiscal data as an API, live from the official api.fiscaldata.treasury.gov. Track the US national debt to the penny (total public debt outstanding, debt held by the public and intragovernmental holdings) for the latest day or any date range; get the average interest rates the US government pays on its securities (Treasury Bills, Notes, Bonds, TIPS and more); and look up the official US Treasury reporting exchange rates for ~170 world currencies, used to convert foreign currency to USD for government reporting. Ideal for debt clocks, macro-economic dashboards, fintech, research and data journalism. Public-domain US Treasury data.

api.oanor.com/treasury-api

BIS Central Bank Policy Rates API

The headline interest rate of every major central bank in the world, side by side, served live from the Bank for International Settlements' open statistics API — no key, nothing cached. The BIS compiles the official policy rate for around 40 monetary authorities — the Federal Reserve, the ECB, the Bank of England, the Bank of Japan and dozens more — onto one consistent monthly series. The policy-rates endpoint returns the current rate for every central bank in a single call, ranked from highest to lowest, so you can see the whole global rate landscape at a glance: in mid-2026 Türkiye near 37% at the top and the US Federal Reserve around 3.6%. The country endpoint returns one central bank's policy rate with its full history and its latest move. The changes endpoint compares each bank's two most recent readings and reports who has hiked, who has cut and who is on hold, with the size of the move — the global rate-cycle dashboard. Everything is the BIS's own compiled data, live, nothing stored; rates are monthly. This is the global monetary-policy layer for any macro, fixed-income, forex or research app. Distinct from single-central-bank APIs — this is every central bank's policy rate in one place, from the BIS. 3 endpoints, no key on our side.

api.oanor.com/bis-api

Banco Central do Brasil API

Live official Brazilian monetary and FX data, served straight from the Central Bank of Brazil's open SGS and PTAX APIs — no key, nothing cached. Brazil is the largest economy in Latin America and one of the highest-yielding major markets, and this exposes its headline numbers as clean JSON. The indicators endpoint returns the whole dashboard in one call: the Selic policy target rate set by the Copom, the CDI interbank rate, IPCA monthly and 12-month inflation, and the official USD/BRL and EUR/BRL PTAX exchange rates — in mid-2026 Selic sat at 14.50%, 12-month IPCA near 4.4% and the dollar around 5.17 reais. The selic endpoint returns the policy rate the Central Bank uses to steer the economy, with recent history. The inflation endpoint returns IPCA, Brazil's official consumer price index, both monthly and accumulated over twelve months. The exchange endpoint returns the official PTAX USD/BRL and EUR/BRL closing rates with recent history. The series endpoint exposes any of the thousands of time series in the Central Bank's SGS database by its numeric code, so you can pull Brazilian interest rates, prices, credit and monetary aggregates on demand. Everything is the Central Bank's own published data, live, nothing stored. This is the Brazil rates-and-FX layer for any fixed-income, forex, emerging-markets or macro app. Distinct from the ECB, Fed, Bank of Canada, Norges Bank and Bank of England APIs — this is Brazil's Selic, IPCA and the real. 6 endpoints, no key on our side.

api.oanor.com/bcb-api

World Government Bond Yields API

Live long-term (about 10-year) government bond interest rates for around 44 countries, side by side, served from the OECD's official statistics in a single live call. The long-term government bond yield is the benchmark cost of money for an economy, and this puts the whole developed world on one screen — the United States, Germany, the United Kingdom, Japan, Canada, Australia, Brazil, Switzerland, Mexico, Colombia and dozens more — each with its latest published rate and the month it covers. The yields endpoint returns every country ranked by yield together with its spread over the German Bund, the euro-area safe-asset benchmark: in mid-2026 Colombia near 13.2%, Mexico 9.5% and Brazil 9.1% sit at the top while Switzerland near 0.5% sits at the bottom, with the US around 4.5% and the German Bund around 3.0%. The country endpoint returns one country's long-term yield with two years of recent monthly history. The spreads endpoint ranks every country by its yield spread over a chosen benchmark — Germany or the United States — the risk-and-rate-differential picture fixed-income and macro desks watch. This is the international-rates comparison layer for any fixed-income, forex, macro or research app. Live from the OECD, nothing stored. Distinct from single-country central-bank and yield-curve APIs — this is the cross-country sovereign-yield comparison across the developed world. Monthly OECD series; 4 endpoints. No key, no cache.

api.oanor.com/worldbonds-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for US Federal Fiscal API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call US Federal Fiscal API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for US Federal Fiscal 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 US Federal Fiscal API cost?
US Federal Fiscal API has a free tier with 100 calls / month. Paid plans start at €9.75 / 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 US Federal Fiscal API GDPR-compliant?
All requests to US Federal Fiscal 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/usfiscal-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/usfiscal-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/usfiscal-api/SOME_PATH");
curl_setopt($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/usfiscal-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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