{"uid":"cap_xTmdH2-8c-hWVmnYI83p_","slug":"prediction-markets-semantic-similarity-search-39629af9","name":"Prediction Markets Semantic Similarity Search","description":"Find semantically similar prediction markets given an event_ticker.","url":"https://d2ngmd5yvdfkqu.cloudfront.net/prediction-markets/similar","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"],"type":"string"},"queryParams":{"type":"object","required":["event_ticker","limit","offset"],"properties":{"limit":{"type":"string","description":"Maximum number of similar events to return."},"offset":{"type":"string","description":"Zero-based result offset."},"event_ticker":{"type":"string","description":"Source market identifier from /prediction-markets."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ACeZZcB1_W4hXPttUuMlP","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns semantically similar prediction markets given a source market event_ticker, with pagination support.","exampleAgentPrompt":"Find me the top 5 prediction markets most similar to the event ticker 'PRES-2024-US-WIN' — start from the first result.","exampleUseCases":null,"resultDescription":"A list of semantically similar prediction markets to the given event_ticker, each with their own ticker identifiers and event metadata, paginated by offset and limit.","failureModes":["Missing or invalid event_ticker returns error or empty results","event_ticker not found in source markets index returns no matches","Invalid or out-of-range offset/limit may return empty or truncated results","Service unavailable or CloudFront timeout returns 5xx error","Payment not processed (x402) blocks the request entirely"],"whenToPreferThis":"Use this endpoint when you have a known prediction market event_ticker and want to discover semantically related or thematically similar markets — ideal for building recommendation flows, exploring correlated events, or finding alternative markets to trade on.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:39:46.888Z","isFirstParty":false}