{"uid":"cap_SLwMexwlfhZQeavhrIb_m","slug":"verdicts-freshness-check-10f601fd","name":"Verdicts Freshness Check","description":"x402-paid attestation verdicts: is this citation still current, and is this domain agent-ready. REST twin of the MCP server at https://verdictmcp.com/mcp.","url":"https://verdictmcp.com/verdict/freshness","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"claim":{"type":"string"},"source_url":{"type":"string"}}},"responseSchema":{"type":"json","example":{"ok":true,"type":"freshness","verdict":"current","reproduction_class":1}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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_md_y8LPVnoJ1Jud6C1kOg","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":"Attests whether a cited claim and its source URL are still current and up-to-date, returning a machine-readable freshness verdict.","exampleAgentPrompt":"Can you check if this claim is still current — 'The WHO declared COVID-19 a global pandemic in March 2020' — using the source URL https://www.who.int/news/item/27-04-2020-who-timeline---covid-19?","exampleUseCases":[{"title":"Research paper citation validation","prompt":"I'm finalizing a research paper and need to verify that this claim is still accurate: 'Global CO2 emissions peaked in 2019 at 36.7 billion tonnes' — the source is https://www.iea.org/reports/global-energy-co2-status-report-2019. Can you check if it's still current?"},{"title":"Fact-checking before publishing an article","prompt":"Before I publish this blog post, can you verify that the claim 'Apple became the first US company to reach a $3 trillion market cap in January 2022' is still valid? The original source is https://www.bbc.com/news/business-59887488."},{"title":"AI agent knowledge base hygiene","prompt":"We have a knowledge base entry that says 'The US federal minimum wage is $7.25 per hour' sourced from https://www.dol.gov/general/topic/wages/minimumwage — can you run a freshness check to see if that's still the current figure?"}],"resultDescription":"Returns a JSON object with an 'ok' boolean, a 'type' field (e.g. 'freshness'), a 'verdict' string (e.g. 'current' or 'stale'), and a 'reproduction_class' integer indicating how reliably the claim can be reproduced or verified.","failureModes":["Source URL is unreachable or returns a non-200 status — verdict may be indeterminate","Claim text is too vague or ambiguous for the service to match against the source","Source URL points to paywalled or bot-blocked content — verification may fail","Network timeout when fetching source content","Invalid or missing required fields (claim or source_url) result in a 4xx error","Payment of $0.01 USDC via x402 protocol not completed — request blocked with 402"],"whenToPreferThis":"Choose this endpoint when you need a paid, attested freshness verdict for a specific claim-URL pair — especially in agentic pipelines where citation accuracy matters and you want a machine-readable confidence signal (reproduction_class). Prefer over free heuristics when auditability and attestation are important, such as before publishing AI-generated content or auditing a knowledge base.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-16T00:37:26.041Z","isFirstParty":false}