#arbitrage

Die perpetual-futures Funding Rate für einen Coin nebeneinander auf den großen Börsen und der Spread zwischen ihnen – live berechnet aus den öffentlichen APIs jeder Plattform, kein API-Key, nichts gespeichert. Ein Perpetual-Swap berechnet oder zahlt alle paar Stunden Funding, um seinen Preis an den Spotpreis zu binden; wenn sich das Funding desselben Coins zwischen den Börsen unterscheidet, kann ein Trader den Perp long gehen, wo das Funding am negativsten ist (und er bezahlt wird), und short gehen, wo es am positivsten ist, und so den Spread marktneutral ernten. Der Funding-Endpunkt gibt für einen Coin die aktuelle Funding Rate auf Binance, Bybit, OKX und Gate.io zurück – pro Intervall und annualisiert – die Börse, die am meisten zahlt, die, die am meisten verlangt, und den börsenübergreifenden Spread (die Arbitrage-Marge). Der Screener-Endpunkt durchsucht einen Korb und ordnet die Coins nach der Größe dieses Spreads und zeigt die größten Funding-Arbitrage-Möglichkeiten an. Dies ist der börsenübergreifende Funding-Rate-/Basis-Arbitrage-Schnitt für Krypto – unterschieden von den Single-Exchange-Funding-Rates-Feeds (eine Börse), der Spot-versus-Perpetual-Basis und den Preis-APIs im Katalog. Funding erfolgt pro Intervall (die meisten Börsen wickeln alle 8 Stunden ab); die Annualisierung geht von drei Abrechnungen pro Tag aus, und die Intervalle können je nach Börse variieren, daher vor dem Handel überprüfen. Coins sind Bases (BTC, ETH).

api.oanor.com/fundingarbitrage-api

Live "where to trade" data for any crypto coin — no key needed. The markets endpoint returns every spot market for a coin across all exchanges: the exchange, the trading pair, the last price, 24h volume (also converted to USD), the bid/ask spread and CoinGecko's trust score — so you can see where a coin trades, at what price and with what liquidity, ideal for arbitrage and best-execution. The exchanges endpoint aggregates that to per-exchange USD volume and pair counts for the coin. Pass the coin as a CoinGecko id (bitcoin, ethereum, solana); common tickers (BTC, ETH, SOL…) are mapped automatically. Data comes live from the public CoinGecko feed — nothing stored. This is the cross-exchange market view for a single coin, distinct from the single-venue exchange tickers, the whole-market data and the single-coin-profile APIs in the catalogue.

api.oanor.com/coinmarkets-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

Live crypto cross-exchange price comparison and arbitrage spread — the spot price of a coin on the major centralised exchanges at once, served straight from each exchange's public ticker. For any base coin it fetches the spot price from Binance, OKX, Bybit, KuCoin and Coinbase in parallel, returns the per-exchange price table, identifies the cheapest venue to buy and the most expensive to sell, and computes the spread between them — absolute and percentage — the headline cross-exchange arbitrage gap. Get the full price table, the best buy/sell opportunity, or the list of exchanges. Live, no key, no cache. Quotes are USDT (Binance/OKX/Bybit/KuCoin) or USD (Coinbase), within a few basis points. A price-discovery and arbitrage layer for trading, analytics and dashboard apps. Distinct from single-exchange price and OHLC APIs — this is the cross-exchange arbitrage view.

api.oanor.com/cryptoarbitrage-api