{"uid":"cap_1i7thfNb5xvgBgX34-l4E","slug":"financial-data-x402-crypto-correlation-dff6c1ac","name":"Financial Data x402 – Crypto Correlation","description":"Pay-per-call stock, macro, on-chain, and crypto data over the x402 protocol. USDC on Base or Solana, no API keys, no subscriptions.","url":"https://x402financialdata.com/crypto-correlation/%7Bsymbol%7D","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"required":{"type":"string"},"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"days":90,"note":null,"as_of":"2026-08-09T12:00:00Z","symbol":"ETH","benchmark":"QQQ","correlation":0.5124,"sample_size":62,"coingecko_id":"ethereum","interpretation":"moderate positive"}},"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_G92exCTPgBXTFTT7vDIWZ","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 the statistical correlation between a given cryptocurrency and the QQQ benchmark index over a 90-day window, including interpretation and sample size.","exampleAgentPrompt":"What's the current 90-day correlation between ETH and QQQ — is it a strong positive relationship or are they diverging?","exampleUseCases":[{"title":"Portfolio diversification check","prompt":"I'm holding a lot of ETH in my portfolio alongside NASDAQ ETFs — can you tell me how correlated ETH has been to QQQ over the last 90 days so I know if I'm actually diversified?"},{"title":"Crypto macro regime analysis","prompt":"I want to know if Bitcoin is currently trading in sync with the QQQ or if it's decoupled from equities — pull the 90-day correlation for BTC and tell me what the interpretation is."},{"title":"Alt-coin risk assessment","prompt":"Before I add Solana to my fund, can you check how correlated SOL is to QQQ right now? I want to know the coefficient and whether it's a moderate or strong relationship."}],"resultDescription":"A JSON object containing: the crypto symbol and its CoinGecko ID, the benchmark used (QQQ), the 90-day correlation coefficient (e.g. 0.5124), a human-readable interpretation (e.g. 'moderate positive'), the sample size of observations, the as-of timestamp, and an optional note field.","failureModes":["Unknown or unsupported crypto symbol returns an error or null data","Payment of $0.01 USDC not completed results in HTTP 402 response","Network issues on Base or Solana blockchain may delay payment settlement","Insufficient historical data for a newly listed token may reduce sample size or return null","Malformed symbol path parameter returns a 400 or 404 error"],"whenToPreferThis":"Choose this endpoint when you need a fast, pay-per-call (no API key or subscription) statistical correlation between a specific cryptocurrency and the QQQ equity benchmark. Ideal for agents performing portfolio analysis, macro regime detection, or risk assessment without a standing data subscription. Prefer over general financial data APIs when you need crypto-to-equity correlation specifically and want micro-payment billing via x402/USDC.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-11T06:30:19.222Z","isFirstParty":false}