{"uid":"cap_xkY59d7xrtDb1LE3deMl6","slug":"saylor-innovations-crypto-exchange-spread-edadc8da","name":"Saylor Innovations Crypto Exchange Spread","description":"Crypto price across exchanges - bid, ask, last and 24h USD volume on Kraken, Coinbase, Gemini, Bitstamp, Bitfinex, Gate.io, KuCoin and MEXC, USDT books converted to USD, with best bid/ask, cross-exchange gap and premium vs median","url":"https://saylorinnovations.com/api/crypto/exchanges/spread?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["base"],"properties":{"base":{"type":"string","description":"Coin symbol, e.g. BTC, ETH, SOL, XRP, DOGE"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string","const":"json"},"example":{"type":"object","required":["base","exchanges"],"properties":{"base":{"type":"string","description":"Base asset or base currency"},"best_ask":{"type":"object","description":"Lowest ask price"},"best_bid":{"type":"object","description":"Highest bid price"},"exchanges":{"type":"array","items":{"type":"object","properties":{"ask":{"type":["number","null"]},"bid":{"type":["number","null"]},"last":{"type":"number"},"quote":{},"exchange":{"type":"string","description":"Exchange the data comes from"},"volume_24h_usd":{"description":"Trading volume over the last 24 hours in US dollars"},"volume_24h_base":{"type":["number","null"],"description":"Volume 24h base"},"premium_vs_median_pct":{"description":"Premium vs median, as a percentage"}}},"description":"Exchanges included"},"checked_at":{"type":["string","null"],"description":"Time the check was run (UTC)"},"quote_note":{"type":["string","null"],"description":"Quote note"},"median_last":{"type":"number","description":"Median last"},"usdt_usd_rate":{"type":["number","null"],"description":"USDT price in US dollars used to convert USDT quotes"},"arbitrage_note":{"type":["string","null"],"description":"Arbitrage note"},"exchanges_checked":{"type":["number","null"],"description":"Exchanges checked"},"exchanges_responding":{"type":"number","description":"Exchanges responding"},"cross_exchange_gap_pct":{"type":["number","null"],"description":"Cross exchange gap, as a percentage"},"high_low_last_spread_pct":{"type":["number","null"],"description":"High low last spread, as a percentage"}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Ei2QHFSO3Oe4k0grjs3TZ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns real-time bid, ask, last price, and 24h USD volume for a cryptocurrency across 8 major exchanges, plus best bid/ask, cross-exchange gap, and premium vs median calculations.","exampleAgentPrompt":"What are the current bid, ask, and last prices for BTC across all major exchanges like Kraken, Coinbase, and Binance, and is there any meaningful spread or arbitrage gap I should know about?","exampleUseCases":[{"title":"Crypto arbitrage opportunity scanner","prompt":"Check the current bid and ask prices for ETH across all major exchanges and tell me if there's a meaningful cross-exchange gap or arbitrage opportunity right now."},{"title":"Best execution price finder","prompt":"I want to buy some SOL — which exchange is currently offering the best ask price? Pull the live order book data across Kraken, Coinbase, Gemini, and the others."},{"title":"Real-time crypto market snapshot","prompt":"Give me a quick snapshot of where XRP is trading right now — bid, ask, last price, and 24h volume on each exchange, plus the median price and any premium outliers."}],"resultDescription":"A JSON object containing the queried coin symbol, a list of exchanges (Kraken, Coinbase, Gemini, Bitstamp, Bitfinex, Gate.io, KuCoin, MEXC) each with bid, ask, last price, 24h volume in both USD and base units, and premium vs median percentage. Also includes aggregate fields: best bid and best ask objects, median last price, cross-exchange gap percentage, USDT/USD conversion rate used, arbitrage note, quote note, number of exchanges checked and responding, and a checked_at UTC timestamp.","failureModes":["Unknown or unsupported coin symbol returns an error or empty exchange list","One or more exchanges may be temporarily unresponsive, reducing exchanges_responding count","USDT conversion rate unavailable may cause null values on USDT-quoted pairs","Network timeouts to upstream exchange APIs may return stale or null bid/ask data","Payment failure (402) if USDC balance is insufficient or x402 header is missing"],"whenToPreferThis":"Choose this endpoint when you need a cross-exchange view of a cryptocurrency's current market price, including bid/ask spread, 24h volume, and arbitrage signals — all in one call. It covers 8 major exchanges simultaneously and normalizes USDT quotes to USD, making it superior to querying individual exchange APIs separately. Ideal for arbitrage detection, best-execution routing, and market monitoring dashboards.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-16T12:43:02.201Z","isFirstParty":false,"canonicalSlug":"saylor-innovations-crypto-exchange-spread-edadc8da"}