{"uid":"cap_gUHnGahDWZji-2Pk_7DRj","slug":"api-meckercapital-com-d9311bfc","name":"Mecker Capital Basis Arbitrage Opportunities","description":"Top funding-rate basis arbitrage opportunities between Extended Exchange and Hyperliquid perpetuals, ranked by absolute APR. Delta-neutral pairs trade: long one venue, short the other, capture cross-venue funding spread. Returns signed APR, t-stat, hit rate, worst-period APR, direction, and venue per leg. Cash-and-carry / funding-rate arbitrage on crypto perpetuals.","url":"https://api.meckercapital.com/v1/basis/opportunities","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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"limit":{"type":"integer","maximum":50,"minimum":1},"min_apr_pct":{"type":"number","description":"Filter out pairs whose |APR| is below this percentage."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"meta":{"type":"object"},"opportunities":{"type":"array","items":{"type":"object"}}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.500000","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.500000/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.5","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.5","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_lKdYnXnY-HJdQjRYRKwSW","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.5","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns top funding-rate basis arbitrage opportunities between Extended Exchange and Hyperliquid perpetuals, ranked by absolute APR with full statistical metrics per pair.","exampleAgentPrompt":"Show me the top 10 funding-rate basis arbitrage opportunities between Extended Exchange and Hyperliquid right now, but only ones with an absolute APR above 5%.","exampleUseCases":null,"resultDescription":"A ranked list of delta-neutral basis arbitrage opportunities, each with signed APR, t-statistic, hit rate, worst-period APR, trade direction (long/short), and which venue (Extended or Hyperliquid) to use per leg — filtered and sorted by absolute APR descending.","failureModes":["No opportunities meet the min_apr_pct filter — returns empty opportunities array","limit out of range (must be 1–50) — returns 400 validation error","Payment not provided or insufficient — returns 402 Payment Required","Service temporarily unavailable — returns 503 error","Stale market data may cause APR estimates to lag real-time conditions"],"whenToPreferThis":"Use this endpoint when you need a ranked, ready-to-use list of the best current basis arbitrage opportunities across Extended Exchange and Hyperliquid, with full statistical validation (t-stat, hit rate, drawdown). Prefer this over the historical spread time-series endpoint when you want actionable signals rather than raw data, and over the pair cointegration endpoints when your focus is funding-rate carry rather than price mean-reversion.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T00:44:41.346Z","isFirstParty":false}