{"uid":"cap_AkigynQEtpdvmtZHNYGH3","slug":"usenami-aggregate-depth-quote-single-venue-crypto-perpetual-636bb9ac","name":"Usenami Aggregate Depth Quote — Single Venue Crypto Perpetual","description":"Sized-depth quote for one crypto perpetual on one venue: best bid/ask plus precomputed slippage at $1K/$5K/$10K notional — what your order actually costs, not just the top of book. $10K cap protects execution edge per DIS-022.","url":"https://api.usenami.io/v1/orderbook/depth/aggregate/:venue/:symbol?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":null,"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"down","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_eThlyOngUwrG214elSHXw","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns best bid/ask plus precomputed slippage estimates at $1K, $5K, and $10K notional for a single crypto perpetual on a specified venue, giving execution-realistic cost insight beyond the top of book.","exampleAgentPrompt":"What's the actual execution cost — best bid/ask plus slippage at $1K, $5K, and $10K — for BTC-PERP on Bybit right now?","exampleUseCases":[{"title":"Pre-trade slippage check before large order","prompt":"Before I send a $10K buy on ETH-PERP on Binance, can you pull the depth quote so I can see the real slippage I'll eat, not just the top of book?"},{"title":"Venue selection by execution cost","prompt":"I want to trade $5K of SOL-PERP — can you get me the depth quote and slippage estimate on Bybit so I can compare execution costs across venues?"},{"title":"Algo bot real-cost signal ingestion","prompt":"Pull the aggregate depth quote for BTC-PERP on OKX, including slippage tiers at $1K, $5K, and $10K, so my trading bot can decide whether to enter the position now."}],"resultDescription":"Returns the best bid and best ask prices for the specified perpetual on the given venue, plus precomputed estimated slippage at three notional tiers ($1K, $5K, $10K), reflecting what an order would actually cost to execute given current order book depth. Capped at $10K notional per the DIS-022 execution-edge protection policy.","failureModes":["Unknown or unsupported venue returns 404 or empty result","Symbol not tracked returns error or null data","Order book data temporarily unavailable returns stale or error response","Exceeding $10K notional cap returns an error per DIS-022 policy","Authentication or payment failure (x402) returns 402 Payment Required"],"whenToPreferThis":"Choose this endpoint when you need execution-realistic cost data for a single specific venue rather than a cross-venue consolidated view. It is ideal for pre-trade analysis, algo signal ingestion, or venue comparison workflows where per-venue slippage at multiple notional tiers matters more than just the top-of-book spread. Prefer the single-venue aggregate depth endpoint over the top-of-book-only endpoint when market impact and slippage are relevant to the decision.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-18T09:27:24.210Z","isFirstParty":false,"canonicalSlug":"usenami-aggregate-depth-quote-single-venue-crypto-perpetual-636bb9ac"}