{"uid":"cap_2qOKDR9-l1IUT1n6Nx0Es","slug":"octodamus-crypto-derivatives-facts-0cf007c0","name":"Octodamus Crypto Derivatives Facts","description":"Deterministic cross-venue crypto derivatives facts: funding rate (8h + annualized + per-exchange), aggregated open interest, and global long/short with skew. BTC/ETH/SOL. Not a prediction.","url":"https://api.octodamus.com/v2/derivatives/facts","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"type":"object","required":["method"],"properties":{"method":{"type":"string","const":"GET"},"headers":{"type":"object","required":["PAYMENT-SIGNATURE"],"properties":{"PAYMENT-SIGNATURE":{"type":"string","description":"x402 EIP-3009 USDC payment signature (Base mainnet)"}}}}},"output":{"type":"object","properties":{"action":{"enum":["BUY","SELL","HOLD"],"type":"string"},"signal":{"enum":["BULLISH","BEARISH","NEUTRAL"],"type":"string"},"btc_trend":{"enum":["UP","DOWN","SIDEWAYS"],"type":"string"},"reasoning":{"type":"string"},"confidence":{"type":"number","maximum":1,"minimum":0},"fear_greed":{"type":"number","maximum":100,"minimum":0},"polymarket_edge":{"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_BBzv7nygO_Z1al1FdW7rK","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 deterministic, cross-venue crypto derivatives data including funding rates, aggregated open interest, and global long/short ratios with skew for BTC, ETH, and SOL.","exampleAgentPrompt":"Pull the current cross-venue derivatives facts for BTC — funding rate (8h and annualized), aggregated open interest, and the global long/short skew from Octodamus.","exampleUseCases":null,"resultDescription":"Returns current funding rate (8h + annualized + broken out per exchange), aggregated open interest across venues, and global long/short ratio with skew for BTC, ETH, or SOL. Data is deterministic and factual — no signals or predictions included.","failureModes":["Missing or invalid PAYMENT-SIGNATURE header returns 402 Payment Required","Expired or already-used payment signature returns 402","Network timeout if upstream exchange data is temporarily unavailable","Unsupported asset symbol returns 400 Bad Request","Malformed request returns 400"],"whenToPreferThis":"Use this endpoint when you need raw, deterministic, cross-venue derivatives market facts (funding rates, OI, long/short) for BTC, ETH, or SOL without interpretation or prediction. Prefer this over signal endpoints when you want objective data to feed your own analysis or decision logic, or when you need per-exchange funding rate breakdowns in a single call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T12:48:38.429Z","isFirstParty":false}