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API · /carrytrade-api

FX Carry Trade API

healthy 4,590 Subscribers

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.

#forex #carry-trade #rollover #interest-rate #swap #trading
api.oanor.com/carrytrade-api
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Machine-readable spec so AI agents can integrate this API.

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

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

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
111 ms
Server probes · 24h
Subscribers
4,590
active
Total calls
0
last 7 days
status Full status page → · 4 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 4,600 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 4,600 calls/month
  • 2 req/sec
  • Carry + rollover + breakeven
  • No credit card
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Starter

€7.70 /month

  • 90,000 calls / month
  • 6 requests / second
  • Hard cap (429 above quota, no overage)
  • 90,000 calls/month
  • 6 req/sec
  • Leveraged return & daily swap
  • Email support
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Pro

€22.40 /month

  • 470,000 calls / month
  • 18 requests / second
  • Hard cap (429 above quota, no overage)
  • 470,000 calls/month
  • 18 req/sec
  • Strategy back-tests & sizers
  • Priority support
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Business

€52.00 /month

  • 2,900,000 calls / month
  • 45 requests / second
  • Hard cap (429 above quota, no overage)
  • 2,900,000 calls/month
  • 45 req/sec
  • FX desk scale
  • Dedicated SLA
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Related APIs

Other APIs with overlapping tags.

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 Cross-Rate & Triangular Arbitrage API

Live cross-rate, triangular-arbitrage and conversion-path maths that FX desks and trading bots run on a set of quoted rates, computed on demand from the legs you pass in — no key, no cache, nothing stored. The cross endpoint chains two pairs that share a currency into the implied third rate (EUR/USD x USD/JPY gives EUR/JPY) and, if you supply the quoted cross, returns the discrepancy in basis points and whether it is arbitrageable. The triangular endpoint takes a closed loop of three rates and detects a triangular-arbitrage opportunity — the cycle product, the profit in percent, the winning direction (forward or reverse) and the payout on a notional. The chain endpoint converts an amount along a path of pairs and returns the amount at every hop with the effective rate. Each leg is written FROMTO:rate, meaning one unit of FROM buys that many of TO (e.g. EURUSD:1.08). This is an FX cross-rate and arbitrage engine that reasons across several pairs at once, distinct from pip/lot calculators and single-pair converters. Computed locally and deterministically, so it is instant and private. Ideal for FX arbitrage scanners, multi-currency pricing, treasury routing and trading dashboards. Live, nothing stored. 3 compute endpoints. For live quotes feed in rates from an FX or exchange API.

api.oanor.com/fxcross-api

FX Forward API

Live FX forward and interest-rate-parity maths that FX desks and treasurers run — computed on demand and deterministically, no key, nothing cached. Get the outright forward rate, forward points (in price and pips) and the annualised forward premium or discount from a spot rate, the two currencies' interest rates and a tenor; the full forward-points curve across standard tenors; the interest rate implied by a quoted forward; and a covered interest-rate-parity check that compares a market forward to its theoretical value and reports the cross-currency basis. Works for any currency pair. A forwards-and-parity engine, distinct from spot calculators and risk tools: it turns spot and rates into the forwards, points and basis a desk quotes.

api.oanor.com/fxforward-api

FX History API

Live historical foreign-exchange rates and analytics from the European Central Bank's daily reference rates — no key, nothing cached. Get the daily rate of a currency pair over any date range; the absolute and percentage move between two dates with its high and low; min, max, average, volatility and the best and worst day over a range; and every rate on a specific date. An FX history-and-analytics layer, distinct from spot-conversion feeds — it turns the ECB rate archive into the time series, moves and volatility a trader or analyst studies. Around 30 currencies, weekdays, back to 1999.

api.oanor.com/fxhistory-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for FX Carry Trade API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call FX Carry Trade API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for FX Carry Trade 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 Carry Trade API cost?
FX Carry Trade API has a free tier with 100 calls / month. Paid plans start at €7.70 / 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 Carry Trade API GDPR-compliant?
All requests to FX Carry Trade 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/carrytrade-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/carrytrade-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/carrytrade-api/SOME_PATH");
curl_setopt($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/carrytrade-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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