{"uid":"cap_Dv6roXYn9GK-HvjHyz5sr","slug":"kronos-signals-cex-premium-btc-coinbase-vs-composite-spot-d92e45f1","name":"Kronos Signals CEX Premium – BTC Coinbase vs Composite Spot","description":"Coinbase price premium vs composite spot median (OKX + Kraken + Binance). premium_pct = (coinbase / composite_median − 1) × 100. Positive = US/institutional demand skew; negative = global selling pressure. Covers BTC/ETH/SOL/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/BCH/ATOM/NEAR (assets listed on Coinbase). Point-in-time only — no historical baseline stored. $0.02 USDC per call via x402.","url":"https://kronossignals.com/api/v1/cex-premium/btc","method":"GET","headers":{},"bodySchema":{"type":"object","$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"},"pathParams":{"type":"object"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_mByvGRT6b-c3QymB62ZFJ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the real-time Coinbase price premium for BTC relative to a composite spot median of OKX, Kraken, and Binance, expressed as a percentage.","exampleAgentPrompt":"What's the current Coinbase price premium for BTC versus the global composite spot median — is it positive (US demand skew) or negative (global selling pressure)?","exampleUseCases":null,"resultDescription":"Returns a premium_pct value representing (Coinbase price / composite median of OKX+Kraken+Binance − 1) × 100 for BTC. Positive values indicate US or institutional demand skew; negative values indicate global selling pressure. Point-in-time only, no historical data included.","failureModes":["Asset not listed on Coinbase — endpoint only covers supported assets like BTC/ETH/SOL etc.","Exchange data unavailable — one or more composite exchanges may be temporarily unreachable, affecting median calculation","Payment failure — x402 micropayment of $0.02 USDC not completed or wallet lacks funds","Rate limiting — too many calls in a short window may result in 429 responses","Stale data — real-time feeds may have brief latency spikes during high volatility"],"whenToPreferThis":"Use this endpoint when you need a fast, point-in-time signal of US/institutional crypto demand by measuring the Coinbase price premium over global exchanges. Ideal for trading agents, market monitors, or macro dashboards that want a reliable demand-skew indicator without storing or querying historical data. Prefer over raw price feeds when you specifically need inter-exchange premium analysis rather than absolute price levels.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:50:22.080Z","isFirstParty":false}