{"uid":"cap__XUrdV3WnMgaafu-F6kZx","slug":"chainlink-bid-ask-spread-check-afd5632f","name":"Chainlink Bid-Ask Spread Check","description":"Chainlink 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-chainlink-spread-check?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"product":{"type":"string","default":"LINK-USD","description":"Coinbase USD product ID; defaults to LINK-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_Bm91tmKzUjUO7wcfNKnb9","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 LINK-USD (or another Coinbase Exchange USD market) using real-time public order book data.","exampleAgentPrompt":"What's the current bid-ask spread for Chainlink on Coinbase — give me both the absolute dollar spread and the percentage spread for LINK-USD.","exampleUseCases":[{"title":"Pre-trade liquidity check for LINK","prompt":"Before I place my Chainlink order, can you pull the current LINK-USD bid-ask spread so I can estimate how much I'll lose to the spread?"},{"title":"Spread monitoring alert for algo trader","prompt":"Check the LINK-USD spread on Coinbase right now and tell me if the percentage spread is above 0.1% — I want to know if conditions are too wide to trade."},{"title":"Market quality comparison across crypto pairs","prompt":"I'm comparing liquidity across several coins — can you get me the current bid-ask spread for LINK-USD so I can see how it stacks up against other assets?"}],"resultDescription":"Returns the latest absolute bid-ask spread (in USD) and the percentage spread calculated from Coinbase Exchange public order book data for the requested USD trading pair, along with the best bid and ask prices used in the calculation.","failureModes":["Invalid or unsupported product ID returns an error — only Coinbase USD market pairs are supported","Stale or missing order book data if Coinbase public feed is temporarily unavailable","No response if the x402 payment of $0.01 USDC fails or is rejected","Rate limiting if called too rapidly without proper payment headers"],"whenToPreferThis":"Choose this endpoint when you need a quick, cheap real-time snapshot of market tightness for Chainlink (LINK-USD) or another Coinbase USD pair. It is ideal for pre-trade cost estimation, liquidity monitoring, or comparing spread quality across assets. Prefer it over full order book endpoints when you only need the top-of-book spread metric without deeper level-2 data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:44:29.829Z","isFirstParty":false,"canonicalSlug":"chainlink-bid-ask-spread-check-afd5632f"}