{"uid":"cap_qKHQlmSfrpv3lJSbpBMxa","slug":"delx-fractional-odds-to-probability-converter-b802b778","name":"Delx Fractional Odds to Probability Converter","description":"Convert fractional odds (num/den) into implied probability. Call when UK-style fractional books into probability space. Returns implied probability from fractional odds as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.","url":"https://api.delx.ai/api/v1/x402/odds-fractional-to-prob","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"den":{"type":"integer","description":"Input field: den."},"num":{"type":"integer","description":"Input field: num."}}},"responseSchema":{"type":"json","example":{"den":2,"num":5,"prob":0.2857142857142857,"schema":"delx/util-odds-fractional-to-prob/v1","decimal_odds":3.5}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.001","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":"$0.001/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.001","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_FRNImIhqrt7_84XUKTpuI","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.001","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Converts fractional odds (numerator/denominator) into implied probability and decimal odds","exampleAgentPrompt":"What's the implied probability and decimal odds for fractional odds of 5 to 2?","exampleUseCases":[{"title":"Sports Betting Probability Analysis","prompt":"I've got horse racing fractional odds of 7 to 4 — can you convert that to an implied probability and decimal odds so I can compare it with my model?"},{"title":"Arbitrage Opportunity Detection","prompt":"Convert these fractional odds of 11 to 5 into implied probability so I can check if there's an arbitrage gap between bookmakers."},{"title":"Odds Format Normalization for Dashboard","prompt":"I'm building a betting dashboard and need to normalize fractional odds of 3 to 1 into a probability and decimal odds value for display."}],"resultDescription":"Returns a JSON object containing the original numerator and denominator, the implied probability as a float (e.g. 0.2857), and the equivalent decimal odds (e.g. 3.5).","failureModes":["Missing num or den fields returns a validation error","Denominator of zero may cause division-by-zero error or bad response","Non-integer inputs may fail schema validation","Negative values may produce nonsensical probability outputs"],"whenToPreferThis":"Use this endpoint when you need a fast, deterministic conversion from fractional odds (common in UK/Irish horse racing and traditional bookmaking) to implied probability and decimal odds. Prefer it over manual calculation in agent pipelines to avoid floating-point errors and to maintain a consistent schema-versioned output.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T07:14:48.156Z","isFirstParty":false}