{"uid":"cap_lpNf68MFTA5FXJTBhCmRh","slug":"tereno-prediction-evidence-db311433","name":"Tereno Prediction Evidence","description":"Tereno is a cooperation layer where autonomous agents pay for verified information before they act — and reuse trusted work instead of repeating it. Token metadata, chain state, contract checks and sourced prediction evidence, paid per call with x402 on Base.","url":"https://tereno.xyz/api/v1/capabilities/prediction.evidence/invoke?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"market":{"type":"string","description":"Market platform identifier (e.g. 'polymarket', 'omen', 'kalshi'). Defaults to 'polymarket'."},"context":{"type":"object","description":"Optional contextual metadata from the agent."},"question":{"type":"string","maxLength":2000,"minLength":5,"description":"Prediction market question or proposition to audit with verifiable evidence."},"marketUrl":{"type":"string","description":"Optional URL to the market page for resolution rules extraction."}}},"responseSchema":{"type":"json","example":{"result":{"market":"polymarket","receipt":{"id":"rcpt_pe_1234567890abcdef","hash":"0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef","question":"Will Ethereum Pectra upgrade activate on mainnet before Q4 2026?","createdAt":"2026-09-18T10:00:00.000Z","observedAt":"2026-09-18T10:00:00.000Z","evidenceDigest":"0xabcdef1234567890abcdef1234567890abcdef1234567890abcdef1234567890","capabilityVersion":"1.0.0"},"summary":"Audited proposition. Gathered sourced evidence with verifiable provenance.","verdict":"allow","evidence":[{"claim":"Ethereum Execution Specs and Consensus Specs schedule Pectra upgrade.","source":"Ethereum Foundation EIP Repository & Execution-Specs GitHub","direction":"supports","sourceUrl":"https://github.com/ethereum/execution-specs","confidence":0.95,"observedAt":"2026-09-18T10:00:00.000Z","verificationType":"primary_doc"}],"question":"Will Ethereum Pectra upgrade activate on mainnet before Q4 2026?","agentNote":"This prediction evidence artifact is deterministically hashed and cached.","observedAt":"2026-09-18T10:00:00.000Z","limitations":["Provides machine-readable verifiable evidence with provenance. Does not place bets or give financial advice."],"contradictions":[],"executionCostUsd":0.003},"pricing":{"currency":"USDC","pricePaidUsd":0.05},"verdict":"allow","receiptUrl":"/api/v1/receipts/uuid","capabilityId":"prediction.evidence","invocationId":"uuid","capabilityVersion":"1.0.0"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","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":"$0.05/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_rdr8lwq822kfI5pke06pv","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":"Gathers and returns sourced, verifiable evidence for a prediction market question, with provenance hashing and a verdict on whether to proceed.","exampleAgentPrompt":"Can you pull verifiable evidence for this Polymarket question: 'Will Ethereum Pectra upgrade activate on mainnet before Q4 2026?' — I want sourced claims with provenance before I place a position.","exampleUseCases":[{"title":"Pre-bet evidence audit on Polymarket","prompt":"Before I trade on Polymarket, pull me verifiable sourced evidence for the question 'Will the Federal Reserve cut rates before December 2025?' — I need to see what primary sources support or contradict it."},{"title":"Kalshi market claim verification","prompt":"Audit this Kalshi question for me: 'Will US CPI inflation drop below 2% by end of 2025?' — gather evidence with source URLs and confidence scores so I can make an informed decision."},{"title":"Agent decision gating on prediction outcome","prompt":"My agent is about to act on a prediction about whether SpaceX will reach Mars orbit by 2027 — can you get a Tereno evidence receipt with a verdict and sourced claims so it can decide whether to proceed?"}],"resultDescription":"Returns a structured JSON object containing: a verdict (allow/deny), an array of evidence items each with a claim, source name, source URL, confidence score, direction (supports/contradicts), and verification type; a deterministic evidence digest hash for provenance; a receipt ID and hash for caching and reuse; a summary; agent notes; limitations; contradictions; and execution cost details.","failureModes":["Question too short (under 5 characters) — validation error returned","Market platform identifier not recognized — defaults to polymarket or returns error","Market URL unreachable — resolution rules extraction skipped","Insufficient evidence found for obscure question — low-confidence or empty evidence array","Payment failure via x402 — invocation not completed","Rate limiting or network timeout — retry recommended"],"whenToPreferThis":"Choose this endpoint when an AI agent needs machine-readable, sourced, and provenance-hashed evidence for a prediction market question before making a decision or placing a bet — especially on Polymarket, Omen, or Kalshi. Prefer it over generic web search when you need a structured verdict with deterministic hashing, cached receipts for reuse, and confidence scores per claim. Ideal for agents that must justify autonomous actions with verifiable information trails.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T00:35:44.133Z","isFirstParty":false,"canonicalSlug":"tereno-prediction-evidence-db311433"}