{"uid":"cap_JRxcvcxtJJghzGdSjf5E-","slug":"verity-suite-arbiter-quick-78d46c20","name":"Verity Suite Arbiter Quick","description":"The trust fabric for AI agents — calibrated, fail-closed services agents pay per call.","url":"https://verity-suite.onrender.com/arbiter/quick","method":"POST","headers":{},"bodySchema":{"type":"object","required":["claims"],"properties":{"claims":{"type":"array","description":"Two or more mutually conflicting claims/positions to adjudicate, one per item, in stable order. Fewer than two means nothing to adjudicate."},"evidence":{"type":"array","description":"Retrieved evidence excerpts/sources to judge from. If empty, weak, or off-topic, the verdict MUST reflect that (insufficient_evidence)."},"question":{"type":"string","description":"The specific point in dispute the claims are answering, if narrower than the claims themselves. Used to scope relevance only."}}},"responseSchema":{"type":"object","title":"arbiter_out","required":["verdict","confidence","reasons"],"properties":{"reasons":{"type":"array","items":{"type":"string"},"title":"Reasons","description":"Concrete reasons that cite, by content, which evidence item supports or undercuts which claim (reference claims by their index). Never vague summaries."},"verdict":{"enum":["claim_supported","undecidable","insufficient_evidence"],"type":"string","title":"Verdict","description":"claim_supported = exactly one claim is clearly better supported by the provided evidence. undecidable = relevant evidence is present but balanced, mutually contradictory, or equally (un)supportive, with no clear winner. insufficient_evidence = no provided evidence, or it is too thin/off-topic/low-quality to favor any claim, OR fewer than two distinct claims were given."},"confidence":{"type":"number","title":"Confidence","maximum":1,"minimum":0,"description":"Calibrated 0..1 strength of the verdict: how decisively the provided evidence favors the chosen claim. MUST be 0.0 whenever verdict is not claim_supported."},"missing_evidence":{"type":"array","items":{"type":"string"},"title":"Missing Evidence","description":"What specific evidence would be needed to decide. Populate when verdict is undecidable or insufficient_evidence; may be empty when claim_supported."},"best_supported_index":{"anyOf":[{"type":"string"},{"type":"null"}],"title":"Best Supported Index","description":"Zero-based index, as a decimal string (e.g. \"0\"), into 'claims' of the better-supported claim. Present ONLY when verdict=claim_supported, and exactly one index; omit entirely otherwise."}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.03","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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":"$0.03/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_KO6MntiiFvUfbMfnt0i7P","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.03","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Adjudicates two or more conflicting claims against provided evidence, returning a calibrated verdict on which claim is better supported.","exampleAgentPrompt":"I need you to arbitrate a dispute: Claim 0 says 'the Earth is approximately 4.5 billion years old' and Claim 1 says 'the Earth is approximately 6,000 years old' — here are three evidence excerpts from peer-reviewed geology sources supporting Claim 0. Which claim do these sources better support and how confident are you?","exampleUseCases":null,"resultDescription":"Returns a verdict of 'claim_supported', 'undecidable', or 'insufficient_evidence'; a calibrated confidence score (0–1, must be 0.0 unless a single claim wins); an array of concrete reasons citing which evidence supports or undercuts which claim by index; optionally the zero-based index of the best-supported claim; and optionally a list of what specific evidence would be needed to resolve an undecidable or evidence-poor case.","failureModes":["Fewer than two distinct claims provided → verdict is 'insufficient_evidence' with confidence 0.0","Evidence array is empty or off-topic → verdict is 'insufficient_evidence'","Evidence is present but equally supportive of both claims → verdict is 'undecidable' with confidence 0.0","Claims are not genuinely contradictory (e.g. compatible statements) → may return undecidable","Payment not included or insufficient → HTTP 402 payment required","Malformed input (missing 'claims' field) → validation error"],"whenToPreferThis":"Choose this endpoint when an AI agent needs a calibrated, fail-closed judgment on which of two or more competing factual claims is better supported by retrieved evidence — especially in agentic pipelines where overconfident or vague verdicts are costly. Prefer it over a general LLM call when you need structured output with explicit evidence citations, a numeric confidence score, and disciplined handling of the 'insufficient evidence' case rather than a hallucinated answer.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:33:13.492Z","isFirstParty":false}