{"uid":"cap_w2-04PCrRUSl71VMsPvNY","slug":"optimism-bid-ask-spread-check-d01a08ad","name":"Optimism Bid-Ask Spread Check","description":"Optimism 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-optimism-spread-check?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"product":{"type":"string","default":"OP-USD","description":"Coinbase USD product ID; defaults to OP-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_X9iZRmmmH5H7wFZB3j9sJ","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 the OP-USD (Optimism) market using Coinbase Exchange public data.","exampleAgentPrompt":"What's the current bid-ask spread for Optimism (OP-USD) — give me both the absolute dollar amount and the percentage spread?","exampleUseCases":[{"title":"Pre-trade liquidity check for OP","prompt":"Before I put in a large order for Optimism, can you check the current OP-USD bid-ask spread so I know how much slippage to expect?"},{"title":"Spread monitoring for trading bot","prompt":"Check the OP-USD bid-ask spread right now and tell me both the absolute spread and the percentage — I want to know if it's tight enough to execute a trade."},{"title":"Market health snapshot for DeFi portfolio","prompt":"Can you pull the latest bid-ask spread for OP-USD on Coinbase and tell me if the market looks liquid today?"}],"resultDescription":"Returns the current absolute bid-ask spread (in USD) and the percentage bid-ask spread for the specified Coinbase USD product (defaulting to OP-USD), derived from the latest public order book data on Coinbase Exchange.","failureModes":["Invalid product ID returns an error or empty result","Coinbase Exchange API downtime causes data unavailability","Non-USD product pairs may not be supported","Stale data if order book hasn't updated recently","Payment failure for the $0.01 USDC x402 charge blocks the request"],"whenToPreferThis":"Use this endpoint when you specifically need real-time bid-ask spread metrics (both absolute and percentage) for the OP-USD pair on Coinbase Exchange. Prefer this over general market data endpoints when spread/liquidity analysis is the primary goal rather than price or volume alone.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-02T12:44:13.407Z","isFirstParty":false,"canonicalSlug":"optimism-bid-ask-spread-check-d01a08ad"}