{"uid":"cap_dnvsDJebiPqJqwUMCETbB","slug":"polkadot-bid-ask-spread-check-ebd7fd7c","name":"Polkadot Bid-Ask Spread Check","description":"Polkadot 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-polkadot-spread-check?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"product":{"type":"string","default":"DOT-USD","description":"Coinbase USD product ID; defaults to DOT-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_JGHtUnOd_i5e-abNNAdVI","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 Polkadot (DOT-USD) using Coinbase Exchange public market data.","exampleAgentPrompt":"What's the current bid-ask spread for Polkadot on Coinbase — give me both the absolute dollar spread and the percentage spread for DOT-USD.","exampleUseCases":[{"title":"Pre-trade slippage assessment","prompt":"Before I put in a buy order for DOT, can you check what the current bid-ask spread looks like for DOT-USD on Coinbase? I want to know how wide the spread is in both dollar and percentage terms."},{"title":"Market liquidity monitoring alert","prompt":"I'm watching the Polkadot market — can you pull the current DOT-USD bid-ask spread so I can see how liquid the market is right now?"},{"title":"Arbitrage opportunity evaluation","prompt":"Can you check the DOT-USD spread on Coinbase for me? I need the absolute and percentage spread to figure out if there's a viable arbitrage window."}],"resultDescription":"Returns the current best bid price, best ask price, absolute spread (ask minus bid in USD), and percentage spread (spread relative to mid-price) for the DOT-USD pair sourced from Coinbase Exchange public market data.","failureModes":["Invalid product ID returns an error — only valid Coinbase USD product IDs are accepted","Coinbase API unavailability may cause stale or missing data","Market closed or illiquid conditions may result in unusual spread values","Malformed request body may return a validation error"],"whenToPreferThis":"Choose this endpoint when you specifically need real-time bid-ask spread data for Polkadot (DOT) denominated in USD from Coinbase Exchange. It is ideal for pre-trade analysis, liquidity checks, and slippage estimation when trading DOT. Prefer this over general price endpoints when the spread width (not just price) is the key metric.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:44:30.328Z","isFirstParty":false,"canonicalSlug":"polkadot-bid-ask-spread-check-ebd7fd7c"}