{"uid":"cap_c_soG9qIUaNlcm0oi6JtG","slug":"halowerk-marktwerk-futures-basis-endpoint-31507608","name":"HALOWERK marktwerk – Futures Basis Endpoint","description":"HALOWERK marktwerk — bezahlte Endpunkte nach x402. Preise in USDC auf Base Mainnet.","url":"https://markt.netzhandwerker.de/basis","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"venue":{"enum":["deribit"],"type":"string","default":"deribit","description":"Futures venue. Only Deribit is connected here."},"symbol":{"type":"string","pattern":"^(BTC|ETH|btc|eth)/(USD|usd)$","description":"Underlying as BASE/USD, so BTC/USD or ETH/USD. Deribit settles its dated futures in USD."},"expiries":{"type":"string","default":"alle","description":"alle for every open expiry, naechste for the nearest one, or an exact date as YYYY-MM-DD."},"spot_source":{"enum":["deribit_index","binance","coinbase","kraken","okx","bybit"],"type":"string","default":"deribit_index","description":"Where the spot price comes from. deribit_index sits on the same venue as the contract; anything else is flagged as a cross venue basis."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.004","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":"$0.004/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.004","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_eC3BWAuy6nZKd7QjZ0Hxm","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.004","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the futures basis (spread between futures price and spot price) for BTC or ETH dated futures on Deribit, across selected expiries and spot sources.","exampleAgentPrompt":"What's the current futures basis for BTC/USD across all open Deribit expiries, using Binance as the spot source?","exampleUseCases":[{"title":"Basis trader scanning all BTC expiries","prompt":"Show me the futures basis for BTC/USD on Deribit across every open expiry, using the Deribit index as spot — I want to see where the premium is biggest."},{"title":"Cross-venue basis alert for ETH","prompt":"What is the ETH/USD futures basis on Deribit compared to Coinbase spot right now? I'm checking if there's a meaningful cross-venue spread I can trade."},{"title":"Nearest ETH expiry basis check","prompt":"Give me the basis just for the nearest ETH/USD futures contract on Deribit, using OKX spot as the reference price."}],"resultDescription":"Returns structured data including the futures price, spot price, and computed basis (absolute and/or annualized spread) for the requested BTC or ETH dated futures on Deribit, for each matching expiry. Cross-venue comparisons are flagged when the spot source differs from the futures venue.","failureModes":["Invalid symbol pattern (not BTC/USD or ETH/USD) returns a validation error","Unsupported venue value causes rejection since only Deribit is connected","Invalid expiry date format (not YYYY-MM-DD) causes a parsing error","Deribit API unavailability may cause upstream data fetch failure","Payment failure via x402 results in HTTP 402 and no data returned"],"whenToPreferThis":"Choose this endpoint when you need real-time or near-real-time futures basis data specifically for Deribit BTC or ETH dated futures, especially when comparing across multiple expiries or across different spot price sources (cross-venue basis). It is purpose-built for basis trading analysis and futures curve inspection in crypto derivatives markets.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:50:39.664Z","isFirstParty":false}