{"uid":"cap_V2JDLRCCTkJJlZhJ7g0sn","slug":"halowerk-marktwerk-options-book-aggregator-fec59f8a","name":"HALOWERK marktwerk Options Book Aggregator","description":"Reads the public option book summaries of Deribit and aggregates them per expiry. iv_atm is the mark implied volatility of the strike closest to the forward, averaged over call and put, and the strike used is named. term_structure lists iv_atm against days to expiry. put_call_ratio is reported twice and never mixed: once by 24h volume and once by open interest. open_interest_by_strike and key_strikes show where positions actually sit, above and below the forward. max_pain comes with the complete","url":"https://markt.halowerk.com/options?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"expiry":{"type":"string","default":"naechste","description":"naechste for the nearest expiry, an exact date as YYYY-MM-DD, or alle for every open expiry."},"underlying":{"enum":["BTC","ETH","btc","eth"],"type":"string","description":"Underlying. Deribit lists crypto options for BTC and ETH."},"moneyness_range":{"type":"number","default":0.3,"maximum":1,"minimum":0.1,"description":"How far strikes may sit from the forward to be listed, as a fraction. 0.3 means plus or minus 30 percent."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.008","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":"$0.008/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.008","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_tzdHziixdrI_InSN0DeuJ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.008","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Aggregates Deribit public options book data per expiry for BTC or ETH, providing ATM implied volatility, term structure, put/call ratios, open interest by strike, and max pain.","exampleAgentPrompt":"Pull the options market summary for BTC on Deribit for the nearest expiry — I want ATM implied vol, the term structure, put/call ratios by volume and open interest, and where max pain sits, with a moneyness range of 30%.","exampleUseCases":[{"title":"Pre-expiry options positioning check","prompt":"What does the BTC options book look like for the nearest Deribit expiry? Show me ATM IV, where open interest is concentrated, and where max pain lands."},{"title":"ETH term structure analysis","prompt":"Pull the full ETH options term structure from Deribit across all open expiries so I can see how implied volatility changes with time to expiration."},{"title":"Put/call sentiment check before trade","prompt":"What's the put/call ratio for ETH options on Deribit right now, both by 24-hour volume and by open interest, for the next expiry?"}],"resultDescription":"Returns aggregated options book data for the requested underlying and expiry, including: ATM implied volatility (averaged over nearest-to-forward call and put), term structure (IV vs. days to expiry), put/call ratio by 24h volume, put/call ratio by open interest, open interest by strike, key strikes above and below the forward, and max pain with full supporting data.","failureModes":["Invalid or unsupported underlying (not BTC or ETH) returns validation error","Expiry date not found on Deribit returns empty or error response","moneyness_range outside [0.1, 1.0] returns schema validation error","Deribit API unavailable causes upstream timeout or failure","No open interest data for specified expiry may result in sparse output"],"whenToPreferThis":"Choose this endpoint when you need a structured, aggregated view of Deribit's crypto options market for BTC or ETH — specifically ATM implied volatility, term structure, put/call sentiment, and strike-level open interest — rather than raw order book data or single-instrument Greeks. It is purpose-built for options market structure analysis and max pain computation on Deribit, not for generic options data from other exchanges.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T18:38:43.897Z","isFirstParty":false,"canonicalSlug":"halowerk-marktwerk-options-book-aggregator-fec59f8a"}