{"uid":"cap__bvEWJcGGXhO2iSZbsBJ0","slug":"romny-cross-venue-odds-robinhood-polymarket-matched-contract-pairs-79b93c25","name":"Romny Cross-Venue Odds – Robinhood↔Polymarket Matched Contract Pairs","description":"Robinhood↔Polymarket matched contract pairs with confidence","url":"https://api.romny.dpdns.org/v1/rh/pm-matches?utm_source=zero.xyz","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"},"queryParams":{"type":"object","required":[],"properties":{"limit":{"type":"string","description":"Max pairs (1-200, default 50)"},"min_confidence":{"type":"string","description":"Minimum match confidence 0-1 (default 0.6)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.1","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":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ZfDTiMUxrsLGo8UEBlcI7","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns matched contract pairs between Robinhood and Polymarket prediction markets with a confidence score for each match","exampleAgentPrompt":"Show me the top 50 Robinhood–Polymarket matched contract pairs where the confidence is at least 0.8.","exampleUseCases":[{"title":"Arbitrage opportunity scanning","prompt":"Find me all Robinhood and Polymarket contracts that are matched with at least 0.85 confidence — I want to compare odds across venues for potential arbitrage."},{"title":"Curated high-confidence pair list","prompt":"Give me up to 100 cross-venue prediction market pairs between Robinhood and Polymarket, only showing the ones with a match confidence above 0.9."},{"title":"Broad cross-venue market survey","prompt":"Pull the full list of matched Robinhood–Polymarket contracts with default confidence filtering so I can see which events are tradeable on both platforms."}],"resultDescription":"A list of matched contract pairs, each containing the Robinhood contract details, the corresponding Polymarket contract details, and a floating-point confidence score indicating how strongly the two contracts are believed to represent the same underlying event. Results are capped by the requested limit and filtered by the minimum confidence threshold.","failureModes":["Invalid limit value outside 1-200 range may return a validation error","min_confidence outside 0-1 range may return a validation error","No matches found above the specified confidence threshold returns an empty list","Payment not included or insufficient USDC causes a 402 payment required error","Service unavailability from upstream data sources may cause 503 errors"],"whenToPreferThis":"Use this endpoint when you need to identify which prediction market contracts on Robinhood have a corresponding match on Polymarket, especially for cross-venue odds comparison or arbitrage analysis. Prefer this over the probability-spread endpoint when you want to discover the matched pairs themselves rather than analyze the spread between already-known pairs.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-23T00:41:09.574Z","isFirstParty":false,"canonicalSlug":"romny-cross-venue-odds-robinhood-polymarket-matched-contract-pairs-79b93c25"}