{
  "generated_at": "2026-04-24T15:01:35.625676+00:00",
  "slug": "event-resolver-production-up-railway-app-api-verify",
  "title": "Event Resolver \u00b7 Factual Claim Verification",
  "url": "https://event-resolver-production.up.railway.app/api/verify",
  "category": "ai",
  "summary": "Verify factual claims against knowledge sources with automated confidence scoring.",
  "seo": {
    "title": "Fact Verification API | x402 AI Truth Checking",
    "description": "Verify factual claims with confidence scoring via AI. Real-time fact checking with 0-100 confidence. $0.003 USDC per call on Base."
  },
  "use_cases": [
    "Fact-check AI-generated content before publication",
    "Verify claims in news articles or social posts",
    "Validate statements for compliance documentation",
    "Score confidence in research assertions"
  ],
  "ideal_buyer": "Content platforms and AI applications requiring automated fact verification.",
  "example_prompt": "Verify the claim: Bitcoin is above $90,000",
  "example_request_body": {
    "claim": "Bitcoin is above $90,000"
  },
  "risk_notes": [],
  "pricing_sanity": {
    "flag": "cheap",
    "ratio": 0.15,
    "median_category_atomic": 20000
  },
  "pricing_review_required": false,
  "pricing_decimal_suspect": false,
  "trust_tier": "indexed_external",
  "accepts": [
    {
      "scheme": "exact",
      "network": "base",
      "pay_to": "0x6e8b64638b24c6d625b045dd353120d850064e2e",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "max_amount_required_atomic": "3000",
      "max_timeout_seconds": 300,
      "verified": false,
      "hints": {
        "input": {
          "body": {
            "type": "object",
            "required": [
              "claim"
            ],
            "properties": {
              "claim": {
                "type": "string",
                "description": "The factual claim to verify, e.g. 'Bitcoin is above $90,000' or 'The US unemployment rate is below 4%'"
              }
            }
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "schema": {
            "type": "object",
            "required": [
              "claim",
              "verdict",
              "confidence"
            ],
            "properties": {
              "claim": {
                "type": "string",
                "description": "Claim verified"
              },
              "verdict": {
                "type": "string",
                "description": "Verdict (true/false/unverifiable)"
              },
              "evidence": {
                "type": "array",
                "items": {
                  "type": "string"
                },
                "description": "Supporting evidence"
              },
              "confidence": {
                "type": "number",
                "description": "Confidence 0-100"
              }
            }
          },
          "example": {}
        }
      }
    }
  ],
  "duplicate_cluster_id": "data-cl-d5a198a04dbf",
  "origin": {
    "slug": "event-resolver-production-up-railway-app",
    "host": "event-resolver-production.up.railway.app",
    "title": "Event Resolver API",
    "description": "An x402-payable API endpoint hosted on Railway. No public homepage is available; the origin appears to be a backend service for event resolution or processing.",
    "url": "https://event-resolver-production.up.railway.app",
    "favicon": "https://event-resolver-production.up.railway.app/favicon.ico"
  },
  "json_ld": {
    "@id": "https://x402all.com/resource/event-resolver-production-up-railway-app-api-verify",
    "url": "https://x402all.com/resource/event-resolver-production-up-railway-app-api-verify",
    "name": "Event Resolver \u00b7 Factual Claim Verification",
    "@type": "WebAPI",
    "offers": {
      "url": "https://x402all.com/resource/event-resolver-production-up-railway-app-api-verify",
      "@type": "Offer",
      "price": "0.003",
      "availability": "https://schema.org/InStock",
      "priceCurrency": "USDC",
      "priceSpecification": {
        "@type": "UnitPriceSpecification",
        "price": "0.003000",
        "unitText": "call",
        "priceCurrency": "USDC"
      },
      "eligibleCustomerType": "Agent",
      "additionalProperty": [
        {
          "@type": "PropertyValue",
          "name": "paymentNetwork",
          "value": "base"
        },
        {
          "@type": "PropertyValue",
          "name": "paymentAsset",
          "value": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
        }
      ]
    },
    "sameAs": "https://event-resolver-production.up.railway.app/api/verify",
    "@context": "https://schema.org",
    "provider": {
      "@id": "https://x402all.com/server/event-resolver-production-up-railway-app",
      "url": "https://event-resolver-production.up.railway.app",
      "name": "Event Resolver API",
      "@type": "Organization"
    },
    "identifier": "event-resolver-production-up-railway-app-api-verify",
    "description": "Verify factual claims with confidence scoring via AI. Real-time fact checking with 0-100 confidence. $0.003 USDC per call on Base.",
    "potentialAction": {
      "@type": "BuyAction",
      "target": "https://axon402.com/test-buy?resource=event-resolver-production-up-railway-app-api-verify",
      "description": "Test-buy this endpoint on AXON"
    },
    "applicationCategory": "ai"
  },
  "axon_deep_link": "https://axon402.com/test-buy?resource=event-resolver-production-up-railway-app-api-verify"
}