{"uid":"cap_zP5nAXdOCPTAkFefPqmWg","slug":"orchard-data-prediction-markets-bebb9287","name":"Orchard Data Prediction Markets","description":"Market data and agent tools (web-read, email-verify, token-check) for AI agents, paid per-call via x402 (USDC on Base). Free index at /, free spec here.","url":"https://orchard-data.letom1176.workers.dev/api/prediction-markets?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"],"type":"string"},"queryParams":{"type":"object","properties":{"q":{"type":"string","description":"Optional keyword filter, e.g. fed, bitcoin, election"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"markets":[{"outcomes":[{"outcome":"Yes","probability":0.71},{"outcome":"No","probability":0.29}],"question":"Fed cuts rates in December?","volume_24h_usd":1250000}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_XI8i59VMlGESn0qDhcbT-","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches live prediction market listings with probabilities, outcomes, and 24-hour trading volume, optionally filtered by keyword.","exampleAgentPrompt":"What are the current prediction market odds for the Fed cutting rates in December — show me the probabilities and recent trading volume?","exampleUseCases":[{"title":"Election odds research","prompt":"Pull up the latest prediction market questions about the US election and show me the probabilities for each outcome."},{"title":"Bitcoin event probability check","prompt":"Search prediction markets for anything related to bitcoin and tell me the current odds and 24-hour volume."},{"title":"Macro finance probability monitor","prompt":"What do prediction markets currently say about Fed rate cuts — list the questions, outcome probabilities, and how much volume each market has seen today?"}],"resultDescription":"Returns a JSON array of prediction markets, each containing the market question, a list of outcomes with their probabilities (e.g. Yes: 71%, No: 29%), and 24-hour trading volume in USD.","failureModes":["No markets match the provided keyword filter, returning an empty markets array","Payment not included or insufficient USDC, resulting in a 402 Payment Required response","Invalid query parameter type causes a 400 Bad Request","Service temporarily unavailable due to Cloudflare Worker issues, returning a 5xx error","Stale or delayed market data if upstream prediction market feeds are lagged"],"whenToPreferThis":"Choose this endpoint when an agent needs real-time prediction market probabilities and volume for specific topics (macro, crypto, elections, etc.) in a structured JSON format, paid via x402/USDC micropayment. Prefer over scraping Polymarket or Kalshi directly when you need a clean, agent-friendly API with per-call pricing and optional keyword filtering.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T12:34:52.881Z","isFirstParty":false,"canonicalSlug":"orchard-data-prediction-markets-bebb9287"}