{"uid":"cap_bx_Z8F7Smsd7NWPzTTZNw","slug":"hars-zero-signal-api-polymarket-structured-feed-7e407edd","name":"HARS-Zero Signal API – Polymarket Structured Feed","description":"Polymarket prediction-market intelligence for AI agents. Pay-per-call in USDC via x402 protocol. Multi-chain: Base + Solana.","url":"https://hars.cryptotavern.xyz/paid/structured-feed","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"properties":{"type":"string"}}},"responseSchema":{"type":"object","example":{"count":0,"markets":[]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_pVrDhsspN1IgDqB0bUm6F","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a structured feed of Polymarket prediction-market data and signals for AI agents, paid per-call in USDC via the x402 protocol.","exampleAgentPrompt":"Pull a structured feed of active Polymarket prediction markets from HARS-Zero and show me the current markets along with their counts — I want to see what's live right now.","exampleUseCases":[{"title":"Political event probability monitoring","prompt":"Check the HARS-Zero structured Polymarket feed and pull all currently active political prediction markets so I can see the latest probabilities on upcoming election outcomes."},{"title":"Crypto market signal aggregation","prompt":"Fetch the latest structured Polymarket feed from HARS-Zero and give me a summary of all open crypto-related prediction markets and their current odds."},{"title":"Automated market research for trading agent","prompt":"I need you to query the HARS-Zero Polymarket feed and return the full list of active markets so my trading agent can analyze which opportunities are worth watching right now."}],"resultDescription":"Returns a JSON object containing a count of matching prediction markets and an array of market objects from Polymarket, each containing market metadata and signal data relevant to AI agent consumption.","failureModes":["Payment not processed via x402 – returns 402 Payment Required if USDC payment is missing or insufficient","Empty markets array returned if no markets match the provided filter properties","Invalid input schema results in a 400 Bad Request","Service unavailability or upstream Polymarket data outage returns 5xx error","Rate limiting or quota exhaustion returns 429 Too Many Requests"],"whenToPreferThis":"Choose this endpoint when you need structured, AI-ready Polymarket prediction market data on a pay-per-call basis without a subscription, especially within x402-compatible agent workflows running on Base or Solana. Prefer this over scraping Polymarket directly or using general market data APIs when you need prediction market probabilities and signals in a clean, structured format ready for agent consumption.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:31:14.245Z","isFirstParty":false}