{"uid":"cap_x7bh2HiWcP_JORyDdg1IL","slug":"hyperliquid-official-open-interest-a4525257","name":"Hyperliquid Official Open Interest","description":"First-party Hyperliquid trading intelligence: perp fills, position lifecycles, all-wallet leaderboards, trader cohorts, liquidation risk and HIP-4 prediction markets - computed from our own node_fills ledger plus the Hyperliquid public info API (no third-party data source). Free discovery (/healthz, /v1/stats, /.well-known/x402, /v1/openapi.json) and free sample routes (/v1/markets/overview, /v1/assets); all other API calls are $0.001 USDC per request via x402 on Base (no account, no API key).","url":"https://hyperliquid-data.v1337.org/v1/markets/official-oi","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object","description":"Operator-defined JSON payload. Probe the upstream or consult the operator's /openapi.json for the concrete shape.","additionalProperties":true},"type":{"type":"string","const":"http"},"method":{"enum":["POST","PUT","PATCH"],"type":"string"},"headers":{"type":"object","additionalProperties":{"type":"string"}},"bodyType":{"enum":["json","form-data","text"],"type":"string"},"queryParams":{"type":"object","additionalProperties":{"type":"string"}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_CO8W4_e5k8d99kL1R1JVP","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns official open interest data across Hyperliquid perpetual markets, computed from first-party node fills ledger","exampleAgentPrompt":"What's the official open interest right now across Hyperliquid perpetual markets — pull it from the node-level data and break it down by asset?","exampleUseCases":[{"title":"Track BTC perp OI spike","prompt":"Check the official open interest for BTC perps on Hyperliquid right now — I want to see whether OI has spiked in the last session."},{"title":"Compare OI across top assets","prompt":"Pull the official open interest across all Hyperliquid perp markets and rank the assets by OI so I can see where capital is concentrated."},{"title":"Risk dashboard OI snapshot","prompt":"Give me a snapshot of official open interest across Hyperliquid perpetuals so I can update my risk dashboard with the latest node-level figures."}],"resultDescription":"Returns official open interest figures for Hyperliquid perpetual markets, computed from the operator's own node_fills ledger. Typically includes per-asset OI values, aggregate market OI, and associated metadata such as market identifiers — all sourced first-party from Hyperliquid's on-chain data rather than a third-party aggregator.","failureModes":["Payment not attached or insufficient USDC via x402 — returns 402 Payment Required","Malformed POST body — returns 400 with schema validation error","Node data temporarily unavailable — returns 503 or 500","Rate limiting if too many requests without valid payment flow","Unsupported asset or market filter returns empty result set or 404"],"whenToPreferThis":"Choose this endpoint when you need authoritative, first-party open interest data sourced directly from Hyperliquid's node_fills ledger rather than aggregated third-party feeds. Ideal when accuracy of OI figures matters for risk management, trading signal generation, or market analysis dashboards. Prefer over general crypto data APIs when Hyperliquid-specific official OI is required with no reliance on external data sources. At $0.001 USDC per call via x402, it suits automated agents that need on-demand OI snapshots without account setup.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:49:44.274Z","isFirstParty":false}