{"uid":"cap_g9LYf4aDt_cFyoxN8Dm8P","slug":"perpetuals-open-interest-crowding-signal-7f422367","name":"Perpetuals Open Interest & Crowding Signal","description":"Pay-per-call crypto microdata for trading/onchain AI agents via x402 (USDC on Base): Base gas, token risk, balances, multi-venue prices, Hyperliquid book/funding, kimchi premium. No API keys.","url":"https://kr-x402-mvp.kgy5612.workers.dev/api/v1/perpetuals/open-interest?utm_source=zero.xyz","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"],"type":"string"},"queryParams":{"type":"object","properties":{"coin":{"type":"string","examples":["BTC","ETH","SOL"],"maxLength":12,"description":"Perp coin, e.g. BTC, ETH, SOL, DOGE (alias symbol=; default BTC)"}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"coin":"BTC","next":["/crypto/funding-signal?coin=BTC","/crypto/candles?symbol=BTC&interval=1h","/crypto/hl-book?coin=BTC"],"action":"No crowding extreme; positioning is not a reason to fade or follow.","funding":{"okx_8h_pct":0.0053,"okx_apr_pct":5.76,"hyperliquid_apr_pct":10.95},"reasons":["OI -3.9% in 4h: deleveraging","4h liquidations: longs $2900k vs shorts $310k (longs_liquidated)","4h taker buy/sell 0.87"],"verdict":"BALANCED","taker_flow":{"1h":{"buy_usd":213069948,"sell_usd":267061837,"buy_sell_ratio":0.798}},"updated_at":"2026-10-30T08:40:00Z","liquidations":{"1h":{"count":38,"dominant":"longs_liquidated","long_liq_usd":1250000,"short_liq_usd":40000},"4h":{"count":90,"dominant":"longs_liquidated","long_liq_usd":2900000,"short_liq_usd":310000},"24h":{"count":100,"dominant":"longs_liquidated","long_liq_usd":2900000,"short_liq_usd":310000},"venue":"okx","sample_covers_minutes":230},"open_interest":{"okx_usd":2579936287,"total_usd":4979936287,"change_1h_pct":-2.11,"change_4h_pct":-3.9,"change_24h_pct":1.2,"hyperliquid_usd":2400000000},"crowding_score":0,"long_short_ratio":{"max_48h":2.72,"min_48h":1.69,"long_pct":69.1,"change_24h":0.49,"okx_accounts":2.24,"ratio_24h_ago":1.75,"percentile_48h":53}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_a8iV9ukaIpzbOG4Nv4ePE","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns aggregated open interest, liquidations, taker flow, long/short ratio, and a crowding verdict for a perpetual futures market (e.g. BTC, ETH, SOL) across OKX and Hyperliquid.","exampleAgentPrompt":"Check the current BTC perpetuals open interest and crowding signal — I want to know if the market is overleveraged long, what the liquidation pressure looks like over the last 4 hours, and whether I should fade or follow positioning right now.","exampleUseCases":[{"title":"Pre-trade crowding check for BTC long","prompt":"Before I open a BTC long position, tell me if perp traders are already crowded long — show me the crowding verdict, recent liquidations, and the long/short ratio percentile for BTC."},{"title":"ETH funding rate and OI divergence alert","prompt":"I want to know if ETH open interest has moved significantly in the last hour and what the funding rates are on Hyperliquid vs OKX — looking for any sign of unusual crowding or deleveraging."},{"title":"SOL taker flow and liquidation snapshot","prompt":"Give me a quick read on SOL perp market health: taker buy/sell ratio for the last hour, any large liquidations on either side, and whether the crowding score suggests I should be careful going long."}],"resultDescription":"A JSON object with: coin name, open interest in USD (OKX and Hyperliquid breakdowns + total), OI % changes at 1h/4h/24h, a crowding_score (0–100), a crowding verdict (e.g. BALANCED, CROWDED_LONG), an action string with trading guidance, a reasons array explaining the signal, liquidation counts and USD values for longs/shorts over 1h/4h/24h, taker buy/sell flow in USD with ratio, long/short ratio with 48h min/max/percentile, funding rates (OKX 8h%, OKX APR%, Hyperliquid APR%), and suggested next API calls.","failureModes":["Invalid coin symbol returns an error or falls back to BTC default","Payment failure via x402 if USDC balance is insufficient","Stale data if upstream OKX/Hyperliquid feeds are delayed","Rate limiting or 402 re-challenge if payment is not processed correctly","Unknown coin symbol (e.g. very low-cap token) may return no data or empty fields"],"whenToPreferThis":"Choose this endpoint when you need a synthesized, multi-venue open interest and crowding signal for a perpetual futures market rather than raw tick data. It aggregates OKX and Hyperliquid data, computes a crowding verdict, and provides actionable guidance — ideal for trading agents that need a quick positioning read before entering or sizing a trade. Prefer this over raw OI feeds when you want pre-computed liquidation summaries, taker flow ratios, and a human-readable action recommendation in one call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:42:28.361Z","isFirstParty":false,"canonicalSlug":"perpetuals-open-interest-crowding-signal-7f422367"}