{"uid":"cap_7aw6uXB6H0Tnw9l0gipqj","slug":"uniswap-bid-ask-spread-check-403f77c5","name":"Uniswap Bid-Ask Spread Check","description":"Uniswap Bid-ask spread check: Calculate the latest absolute and percentage bid-ask spread. Coinbase Exchange public USD market data; not investment advice.","url":"https://market.datapackvibe.com/x402/demand-market-uniswap-spread-check?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"product":{"type":"string","default":"UNI-USD","description":"Coinbase USD product ID; defaults to UNI-USD."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/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_3rvuRiFBaAsIsF0L0Vb-f","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Calculates the latest absolute and percentage bid-ask spread for Uniswap (UNI-USD) or other Coinbase USD market pairs using Coinbase Exchange public market data.","exampleAgentPrompt":"What's the current bid-ask spread for UNI-USD right now — give me both the absolute dollar spread and the percentage spread?","exampleUseCases":[{"title":"Pre-trade liquidity check for UNI","prompt":"Before I buy some UNI, can you check the current bid-ask spread on UNI-USD so I know how much slippage I might be dealing with?"},{"title":"Comparing spread across crypto pairs","prompt":"Pull the bid-ask spread for ETH-USD on Coinbase so I can compare it against the UNI-USD spread and figure out which market is tighter right now."},{"title":"Monitoring spread for trade timing","prompt":"Check the UNI-USD bid-ask spread — I want to know if it's unusually wide right now before I decide whether to execute my trade."}],"resultDescription":"Returns the latest absolute bid-ask spread (in USD) and the percentage bid-ask spread for the requested Coinbase USD trading pair, derived from Coinbase Exchange public market data. Intended for informational market research; not investment advice.","failureModes":["Invalid product ID returns an error or empty response","Unsupported trading pair (non-USD or non-Coinbase pair) may fail or return unexpected results","Payment failure ($0.01 USDC) results in a 402 response before data is returned","Temporary Coinbase Exchange data unavailability may yield stale or missing spread values","Malformed request body or missing required fields may cause a 400 error"],"whenToPreferThis":"Use this endpoint when you need real-time bid-ask spread data specifically for Coinbase USD-denominated crypto pairs, particularly UNI-USD, and want both absolute and percentage spread metrics in a single call. Prefer this over raw order-book endpoints when you need a quick, pre-computed spread figure for liquidity assessment without having to parse full order book data yourself.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:43:41.447Z","isFirstParty":false,"canonicalSlug":"uniswap-bid-ask-spread-check-403f77c5"}