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API · /marketratios-api

Market Ratios API

healthy 4,544 Subscribers

Live intermarket relative-value ratios as an API — the cross-asset signals macro and technical traders watch, computed from Yahoo Finance prices. Each ratio divides one market by another to reveal relative value and regime: the Gold/Oil ratio (barrels of crude per ounce of gold), the Oil/Gas energy spread, the Copper/Gold ratio (a growth and interest-rate barometer), the S&P 500 priced in gold, and the Stocks/Bonds ratio (risk-on versus risk-off, SPY/TLT). For each it returns both leg prices, the ratio value, the day change and a plain-language reading. Get one ratio or the whole board in a single call. The intermarket relative-value layer for trading, macro-research and dashboard apps. Live, no key, no cache. Distinct from single-asset price APIs and from the precious-metals ratio — this is the cross-asset ratio set.

#intermarket #ratios #relative-value #macro #gold-oil #copper-gold #trading #finance
api.oanor.com/marketratios-api
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Machine-readable spec so AI agents can integrate this API.

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

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

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
257 ms
Server probes · 24h
Subscribers
4,544
active
Total calls
18
last 7 days
status Full status page → · 6 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 8,000 calls / month
  • 4 requests / second
  • Hard cap (429 above quota, no overage)
  • 8k calls/month
  • 4 req/sec
  • All endpoints
  • No credit card
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Starter

€10.00 /month

  • 100,000 calls / month
  • 12 requests / second
  • Hard cap (429 above quota, no overage)
  • 100k calls/month
  • 12 req/sec
  • Email support
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Pro

€25.00 /month

  • 500,000 calls / month
  • 35 requests / second
  • Hard cap (429 above quota, no overage)
  • 500k calls/month
  • 35 req/sec
  • Priority support
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Desk

€61.00 /month

  • 2,500,000 calls / month
  • 100 requests / second
  • Hard cap (429 above quota, no overage)
  • 2.5M calls/month
  • 100 req/sec
  • Dedicated SLA
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Related APIs

Other APIs with overlapping tags.

US Federal Fiscal API

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.

api.oanor.com/usfiscal-api

Argentina Economy API

Live Argentine macro-financial indicators from argentinadatos.com (official BCRA, INDEC and market data). Argentina is followed for three numbers above all: the riesgo-país (country risk — the JP Morgan EMBI spread over US Treasuries in basis points, the headline measure of sovereign default risk), inflation (monthly and year-over-year, among the world's highest), and the plazo-fijo rate (the annual interest banks pay on 30-day peso deposits, the saver's defence against inflation). The riesgo-pais endpoint returns the latest spread and recent history; the inflation endpoint returns the latest monthly and interannual rate; the plazo-fijo endpoint compares the deposit rate at every bank; the indicators endpoint returns a combined snapshot. Read live, nothing stored. This is Argentina's own country-risk, inflation and deposit-rate layer — distinct from its parallel-dollar feed and single central-bank APIs.

api.oanor.com/argentina-api

OFR Financial Stress API

Live financial-stability data from the U.S. Office of Financial Research, the federal body created after 2008 to measure systemic risk, via its public Financial Stress Index (FSI). The OFR FSI is a daily, market-based index of stress in the global financial system: a positive value means above-average stress, zero is the historical norm and negative means calm. Get the latest headline index with its day-over-day change. Decompose it into the five kinds of stress it tracks — credit, equity valuation, funding, safe-assets/flight-to-safety and volatility — to see which channel is driving stress. Split it by where the stress sits, the United States versus other advanced economies. Pull the daily time series of the headline or any component back two decades. Live, no key, nothing stored. Distinct from rate, FX, central-bank and stock-index APIs — this is a single, official, daily measure of how stressed the financial system is and why. Perfect for macro, risk, trading and analytics apps.

api.oanor.com/ofr-api

Fed SOMA Balance Sheet API

Live data on the Federal Reserve's balance sheet — the System Open Market Account (SOMA) — via the Federal Reserve Bank of New York's public markets API. SOMA is the portfolio of Treasury securities, agency debt and agency MBS the Fed holds, the asset side of the world's most important central-bank balance sheet, the thing that grows in QE and shrinks in QT. Get the latest weekly snapshot — total holdings and the breakdown across bills, notes and bonds, TIPS, FRNs, agency MBS, CMBS and agency debt. Pull the weekly time series back two decades to see every round of quantitative easing and tightening. Read the actual line-item securities the Fed owns — each CUSIP with its security type, maturity, coupon, par value held and share of the issue outstanding. Bucket the Treasury holdings by time to maturity, the profile that drives the pace of runoff. Live, no key, nothing stored. Distinct from money-market reference-rate, FX-rate, central-bank-policy and stock-index APIs — this is the size, composition and maturity of the Fed's actual securities portfolio. Perfect for rates, macro, fixed-income and analytics apps.

api.oanor.com/fedsoma-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Market Ratios API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Market Ratios API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Market Ratios 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 Market Ratios API cost?
Market Ratios API has a free tier with 100 calls / month. Paid plans start at €10.00 / 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 Market Ratios API GDPR-compliant?
All requests to Market Ratios 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/marketratios-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/marketratios-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/marketratios-api/SOME_PATH");
curl_setopt($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/marketratios-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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