{"uid":"cap_v5sc6k3QmNennh1L1Be4b","slug":"weather-oracle-api-all-cities-probabilistic-temperature-forecast-90919d79","name":"Weather Oracle API — All-Cities Probabilistic Temperature Forecast","description":"Probabilistic daily max-temperature forecasts for the 51 cities behind Polymarket weather markets. Multi-model ensemble with per-model seasonal bias correction, refreshed hourly. Pay per request in USDC on Base via x402 — no accounts, no API keys.","url":"https://91-197-235-206.sslip.io/forecast/all/buckets","method":"GET","headers":{},"bodySchema":{"type":"object","required":["input"],"properties":{"input":{"type":"object","required":["method","pathParams"],"properties":{"method":{"type":"string","const":"GET"},"pathParams":{"type":"object","required":["station"],"properties":{"station":{"type":"string","description":"ICAO station code (e.g. SBGR = Sao Paulo, KNYC = New York). Full catalog at /markets (free)."}}},"queryParams":{"type":"object","properties":{"date":{"type":"string","format":"date","description":"Target date YYYY-MM-DD (today or tomorrow, city-local). Defaults to today."}}}}},"output":{"type":"object"}}},"responseSchema":{"cities":[{"buckets":[{"p":0.1,"outcome":"24°C","token_id_yes":"1138…"}],"station":"SBGR","convention":"market_mirrored_v1"}],"n_cities":51},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.3","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":"$0.3/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.3","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.3","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_CzDOQdDRNAsddCg424Vha","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.3","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns probabilistic daily max-temperature forecast buckets for all 51 Polymarket weather-market cities in a single paid API call via x402/USDC.","exampleAgentPrompt":"Pull the probabilistic max-temperature forecast buckets for all 51 Polymarket weather cities for tomorrow — I want to see the full probability distribution across temperature outcomes for each city.","exampleUseCases":[{"title":"Polymarket weather trading edge","prompt":"Get me the full probability distribution of daily max temperatures for all 51 Polymarket weather cities for today — I want to compare the ensemble forecast probabilities to the current on-chain prices and find any mispriced buckets."},{"title":"Multi-city weather snapshot for arbitrage bot","prompt":"Fetch the calibrated temperature bucket probabilities for all Polymarket weather market cities for tomorrow so my trading bot can decide which YES tokens to buy based on the forecast edge."},{"title":"Pre-market research across all weather cities","prompt":"Before Polymarket's weather markets open today, get me the Weather Oracle ensemble forecast for all 51 cities — I need the probability percentages for each temperature outcome bucket."}],"resultDescription":"A JSON object containing an array of 51 city entries, each with an ICAO station code, a convention label (market_mirrored_v1), and an array of probability buckets. Each bucket has a probability (p), a human-readable temperature outcome string (e.g. '24°C'), and the corresponding Polymarket YES token ID. Also includes an n_cities count at the top level.","failureModes":["Payment failure: x402 USDC payment on Base rejected or insufficient balance — returns 402 Payment Required","Invalid or unsupported date: date parameter is not today or tomorrow in city-local time — returns 400 or empty result","Service unavailable: underlying model ensemble not refreshed yet — may return stale data or 503","Network error: raw IP + sslip.io hostname may have TLS or routing issues — connection timeout","Date format error: date not in YYYY-MM-DD format — returns 400 validation error"],"whenToPreferThis":"Choose this endpoint when you need probabilistic temperature forecasts specifically calibrated to Polymarket's weather market bucket structure for all 51 cities in one call. It is ideal for prediction market trading, arbitrage research, or building automated agents that trade Polymarket weather tokens. Prefer this over generic weather APIs when you need Polymarket token IDs alongside probabilities. Use the per-station endpoint siblings when you only need a single city to reduce cost.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:37:48.997Z","isFirstParty":false}