{"uid":"cap_P1Gl4nJgfYrMatoT8yRfY","slug":"nba-odds-gap-relayhop-workers-dev-d1bd6843","name":"Polymarket NBA Market Implied Probability Lookup","description":"Polymarket NBA market implied probability (Yes price) by Gamma market id. Source: Polymarket Gamma API (free).","url":"https://nba-odds-gap.relayhop.workers.dev/v1/nba/odds/pm/553856","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","properties":{"marketId":{"in":"path","type":"string","description":"Polymarket Gamma market id"}}},"output":{"type":"object"}}},"responseSchema":null,"example":{"request":{"input":{"marketId":"553856"}},"response":{"data":{"id":"553856","source":"polymarket","outcomes":["Yes","No"],"question":"Will the Oklahoma City Thunder win the 2026 NBA Finals?","outcomePrices":[0.435,0.565],"implied_prob_yes":0.435},"source":"/v1/nba/odds/pm/:marketId"}},"exampleRequest":{"input":{"marketId":"553856"}},"tags":["x402"],"displayCostAmount":"0.05","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":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Am45CeaMCG_kIZA41J6o2","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the Polymarket implied probability (Yes price) for a specific NBA market by Gamma market ID","exampleAgentPrompt":"What's the current Polymarket implied probability for the NBA championship market with Gamma ID 553856?","exampleUseCases":[{"title":"Track NBA championship favorites across seasons","prompt":"Can you check the Polymarket implied probability for the 2026 NBA championship market using Gamma ID 553856 so I know what the market thinks about the favorites?"},{"title":"Monitor real-time NBA game outcome odds","prompt":"I need to see the current Polymarket Yes price for the game between the Lakers and Celtics tomorrow — here's the Gamma market ID 612943, can you pull that for me?"},{"title":"Analyze playoff team advancement probabilities","prompt":"What's the implied probability on Polymarket right now for the Suns making the NBA Finals using Gamma ID 587291? I want to compare it to some other betting platforms."}],"resultDescription":"Returns the Polymarket implied probability (Yes price) as a decimal or percentage for the specified NBA Gamma market ID, sourced from the Polymarket Gamma API.","failureModes":["Invalid or non-existent Gamma market ID returns an error or empty result","Market no longer active or resolved returns stale or unavailable data","Polymarket Gamma API downtime causes upstream fetch failure","Payment not completed results in HTTP 402 rejection"],"whenToPreferThis":"Use this endpoint when you need the Polymarket-specific implied probability for a known NBA market and already have the Polymarket Gamma market ID. Prefer this over the sibling endpoints when you want raw Polymarket pricing rather than Kalshi odds or the cross-platform divergence comparison.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:39:49.729Z","isFirstParty":false}