{"uid":"cap_KMk2Q6STnj7PpmMmF_5ZU","slug":"aisa-mpp-data-apis-polymarket-order-book-02bdb140","name":"Polymarket Order Book","description":"Retrieves the order book summary for a specific token ID. Includes bids, asks, market details, and last trade price.\n\n<!-- aisa-pricing:start -->\nPublished reference price: $0.012 USD per successful request. Account-specific pricing and final settlement may differ.\n<!-- aisa-pricing:end -->","url":"https://api.aisa.one/apis/v1/polymarket/book?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","required":["token_id"],"properties":{"token_id":{"type":"string","description":"Token ID (asset ID)"}}},"responseSchema":{"type":"object","required":["market","asset_id","timestamp","hash","bids","asks","min_order_size","tick_size","neg_risk","last_trade_price"],"properties":{"asks":{"type":"array","items":{"type":"object","required":["price","size"],"properties":{"size":{"type":"string","example":"100","description":"Order size"},"price":{"type":"string","example":"0.45","description":"Order price"}}},"description":"List of ask orders (sorted by price ascending)"},"bids":{"type":"array","items":{"type":"object","required":["price","size"],"properties":{"size":{"type":"string","example":"100","description":"Order size"},"price":{"type":"string","example":"0.45","description":"Order price"}}},"description":"List of bid orders (sorted by price descending)"},"hash":{"type":"string","example":"a1b2c3d4e5f6...","description":"Hash of the order book summary"},"market":{"type":"string","example":"0x1234567890123456789012345678901234567890","description":"Market condition ID"},"asset_id":{"type":"string","example":"0xabc123def456...","description":"Token ID (asset ID)"},"neg_risk":{"type":"boolean","example":false,"description":"Whether negative risk is enabled for this market"},"tick_size":{"type":"string","example":"0.01","description":"Minimum price increment (tick size)"},"timestamp":{"type":"string","example":"1234567890","description":"Timestamp of the order book snapshot"},"min_order_size":{"type":"string","example":"1","description":"Minimum order size"},"last_trade_price":{"type":"string","example":"0.45","description":"Last trade price"}}},"example":null,"exampleRequest":null,"tags":["web-search","financial-data","prediction-markets","weather","travel","data","search"],"displayCostAmount":"0.012","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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":"$0.012/call","primary":{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.012","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.012","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_srCt0SpTlORShHGS0UsKI","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.012","costPer":"request","priority":0,"asset":"0x20C000000000000000000000b9537d11c60E8b50","unit":"request","depositMicros":null,"planRef":null}],"brandName":"AIsa MPP Data APIs","brandSlug":"aisa-mpp-data-apis-mpp","brandBaseUrl":"https://aisa.one","brandDocsUrl":null,"whatItDoes":"Retrieves the current order book summary (bids, asks, last trade price, and market details) for a specific Polymarket prediction market token.","exampleAgentPrompt":"What does the order book look like for Polymarket token 12345678901234567890? I want to see the current bids, asks, and last trade price.","exampleUseCases":[{"title":"Monitor prediction market spread","prompt":"Can you pull the current order book for Polymarket token 98765432101234567890 and tell me the best bid, best ask, and what the spread looks like right now?"},{"title":"Check market liquidity before trading","prompt":"I'm thinking about buying on a Polymarket prediction market — can you fetch the order book for token 11223344556677889900 so I can see how much liquidity is on the ask side?"},{"title":"Track last trade price for a market","prompt":"What was the last trade price on Polymarket for token 55667788990011223344? I want to know where the market is currently trading."}],"resultDescription":"Returns a structured order book snapshot including an array of bid orders (sorted by price descending) and ask orders (sorted by price ascending), each with price and size strings; plus the market condition ID, asset ID, last trade price, tick size, minimum order size, a boolean neg_risk flag, a timestamp, and a hash of the snapshot.","failureModes":["Invalid or unknown token_id returns an error or empty result","Stale snapshot if the market has low activity","Network timeout if Polymarket API is unresponsive","Missing token_id parameter results in a validation error","Expired or delisted market may return no bids or asks"],"whenToPreferThis":"Use this endpoint when you need real-time order book depth, spread analysis, or last trade price for a specific Polymarket prediction market token. Prefer this over generic market data APIs when working specifically with Polymarket assets identified by token/asset IDs, especially for trading decisions, liquidity checks, or monitoring market microstructure.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-18T06:51:14.309Z","isFirstParty":false,"canonicalSlug":"aisa-mpp-data-apis-polymarket-order-book-02bdb140"}