{"uid":"cap_Ezagb4doRBcAkX9xefOfy","slug":"polymarket-clob-order-book-depth-api-6fc95ffe","name":"Polymarket CLOB Order Book Depth API","description":"Returns live bid/ask depth from Polymarket CLOB for any market outcome token. Trading & market-making agents use this for order-book-level pricing + liquidity. Keyless, pay-per-call USDC on Base/Solana, no API key, no signup.","url":"https://predict.gocreativeai.com/v1/predict/orderbook/:var1","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"pathParams":{"type":"object"},"queryParams":{"type":"object","required":["input"],"properties":{"input":{"type":"string","description":"endpoint argument"}}}},"additionalProperties":false}}},"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_w-AB2MyvvJle0GCoRpIgl","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":"Returns live bid/ask order book depth (price and liquidity) for a specific Polymarket prediction market outcome token","exampleAgentPrompt":"Pull the live order book depth from Polymarket's CLOB for this outcome token — I need the current bid/ask levels and liquidity before I place a market-making order.","exampleUseCases":[{"title":"Arbitrage opportunity detection on Polymarket","prompt":"Check the live bid/ask depth for this Polymarket outcome token and tell me if there's a spread wide enough to make an arbitrage trade worth executing right now."},{"title":"Liquidity check before large prediction trade","prompt":"Before I put in a big order on this Polymarket market, pull the full order book depth so I can see how much liquidity is sitting at each price level and estimate my slippage."},{"title":"Real-time market making price calibration","prompt":"Fetch the current CLOB order book for this YES token on Polymarket — I want to see where the bids and asks are stacked so I can set competitive limit orders on both sides."}],"resultDescription":"Returns the full live bid/ask order book for the specified Polymarket CLOB outcome token, including price levels, quantities at each level, and spread data useful for trading and market-making decisions.","failureModes":["Invalid or unknown market outcome token returns 404 or empty order book","Network latency causes stale or delayed order book snapshot","Payment failure (USDC) blocks the request with 402 error","Malformed path parameter returns 400 bad request","Market is closed or resolved — returns empty or inactive order book"],"whenToPreferThis":"Use this endpoint when you need order-book-level granularity (full bid/ask depth, liquidity at each price tier) for a specific Polymarket outcome token, especially for automated trading, market-making, or arbitrage strategies. Prefer this over simple YES/NO odds endpoints when pricing precision and liquidity measurement matter.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:40:50.930Z","isFirstParty":false}