{"passport":{"unfragile":{"@version":"1.0","version":"2026-05","artifact":{"id":"smithery_axel-belfort-fact-checker","slug":"axel-belfort-fact-checker","name":"Fact Checker — Verify Claims with Web Evidence","type":"api","url":"https://github.com/Br0ski777/fact-checker-x402","page_url":"https://unfragile.ai/axel-belfort-fact-checker","categories":["research-search"],"tags":["mcp","model-context-protocol","web-browsing","smithery:axel-belfort/fact-checker"],"pricing":{"model":"open_source","free":true,"starting_price":null},"status":"active","verified":false},"capabilities":[{"id":"smithery_axel-belfort-fact-checker__cap_0","uri":"capability://search.retrieval.web.evidence.based.claim.verification","name":"web evidence-based claim verification","description":"This capability verifies factual claims by conducting web searches across multiple sources and assessing their credibility. It employs a scoring mechanism to evaluate the reliability of each source and aggregates the findings to provide a verdict on the claim's accuracy. The architecture allows for seamless integration with AI agents via the x402 micropayment system, enabling low-cost, efficient access to fact-checking services without requiring an API key.","intents":["How can I verify the accuracy of a claim before using it in my content?","What steps should I take to ensure my AI system is not spreading misinformation?","How do I implement a fact-checking mechanism in my application?"],"best_for":["developers building AI agents that require reliable fact-checking capabilities"],"limitations":["Dependent on the availability and credibility of online sources; may not cover niche topics thoroughly."],"requires":["No specific prerequisites; however, a stable internet connection is necessary."],"input_types":["text"],"output_types":["structured data"],"categories":["search-retrieval","fact-checking"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"smithery_axel-belfort-fact-checker__cap_1","uri":"capability://data.processing.analysis.confidence.level.assessment","name":"confidence level assessment","description":"This capability assigns a confidence level to each claim based on the aggregated evidence retrieved from various sources. It uses a scoring algorithm that weighs the credibility of sources and the consistency of the information found. The system is designed to provide nuanced verdicts such as 'confirmed', 'likely', 'unverified', or 'false', which helps users understand the reliability of the claim.","intents":["How can I determine the reliability of a claim I found online?","What does the confidence level mean in the context of fact-checking?","How can I present the verification results to my users effectively?"],"best_for":["content creators and developers needing to ensure the accuracy of information"],"limitations":["Confidence levels are subjective and depend on the quality of sources available; may not be definitive."],"requires":["No specific prerequisites; requires internet access."],"input_types":["text"],"output_types":["structured data"],"categories":["data-processing-analysis","fact-checking"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"smithery_axel-belfort-fact-checker__cap_2","uri":"capability://search.retrieval.source.aggregation.and.citation","name":"source aggregation and citation","description":"This capability retrieves and aggregates multiple sources that either support or contradict a claim, providing users with a comprehensive view of the evidence. It formats the output to include URLs and brief descriptions of each source, allowing users to verify the information independently. The integration with web search APIs ensures that the most relevant and credible sources are prioritized.","intents":["How can I find multiple sources to support or refute a claim?","What are the best practices for citing sources in my content?","How do I ensure that my information is backed by credible references?"],"best_for":["journalists and researchers looking for reliable sources for their articles"],"limitations":["The quality and relevance of sources can vary; may not always find sufficient evidence for less common claims."],"requires":["No specific prerequisites; requires internet access."],"input_types":["text"],"output_types":["structured data"],"categories":["search-retrieval","fact-checking"],"confidence":0.5,"matches":0,"success_rate":0}],"trust":{"score":33,"verified":false,"data_access_risk":"moderate","permissions":["No specific prerequisites; however, a stable internet connection is necessary.","No specific prerequisites; requires internet access."],"failure_modes":["Dependent on the availability and credibility of online sources; may not cover niche topics thoroughly.","Confidence levels are subjective and depend on the quality of sources available; may not be definitive.","The quality and relevance of sources can vary; may not always find sufficient evidence for less common claims.","builder identity is not verified yet","no observed match outcomes yet"],"rank_breakdown":{"adoption":0.05,"quality":0.41,"ecosystem":0.52,"match_graph":0.25,"freshness":0.75,"weights":{"adoption":0.25,"quality":0.25,"ecosystem":0.1,"match_graph":0.28,"freshness":0.12}},"observed_outcomes":{"matches":0,"success_rate":0,"avg_confidence":0,"top_intents":[],"last_matched_at":null},"maintenance":{"status":"active","updated_at":"2026-05-24T12:16:25.636Z","last_scraped_at":"2026-05-03T15:19:49.547Z","last_commit":null},"community":{"stars":null,"forks":null,"weekly_downloads":null,"model_downloads":null,"model_likes":null}},"distribution":{"claim_url":"https://unfragile.ai/submit?claim=axel-belfort-fact-checker","compare_url":"https://unfragile.ai/compare?artifact=axel-belfort-fact-checker"}},"signature":"XUKUbUpcjSReAUZzcdb6OBZtjPkduT736XEDOlVTXI2m7dnzUbgTozsIAXUZnqmkGVc9+89Q6rThcINETAAVBA==","signedAt":"2026-06-21T11:48:32.694Z","signedBy":"unfragile.ai","version":1},"_links":{"self":"https://unfragile.ai/api/v1/passport/axel-belfort-fact-checker","artifact":"https://unfragile.ai/axel-belfort-fact-checker","verify":"https://unfragile.ai/api/v1/verify?slug=axel-belfort-fact-checker","publicKey":"https://unfragile.ai/api/v1/trust-passport-public-key","spec":"https://unfragile.ai/trust","schema":"https://unfragile.ai/schema.json","docs":"https://unfragile.ai/docs"}}