VERITY

{
  "name": "VERITY",
  "description": "Real-time fact-checking and data freshness agent. Verifies claims, URLs, and content against live web sources. Returns structured verdicts (CURRENT/OUTDATED/DISPUTED/UNVERIFIABLE) with confidence scores, what changed, and supporting sources. The first agent-native, pay-per-check fact verifier \u2014 no subscriptions, persistent memory per caller.",
  "url": "https://verity.basechainlabs.com/api/agent",
  "version": "1.0.0",
  "protocolVersion": "0.2.1",
  "capabilities": {
    "streaming": true,
    "pushNotifications": false,
    "stateTransitionHistory": true
  },
  "skills": [
    {
      "id": "claim_verify",
      "name": "Claim Verification",
      "description": "Input: claim or URL (string). Output: VerityResult JSON \u2014 verdict (CURRENT/OUTDATED/DISPUTED/UNVERIFIABLE), confidence 0\u2013100, sources array, what_changed string. Verifies against live web via Tavily.",
      "tags": [
        "fact-check",
        "verification",
        "claim",
        "live-web"
      ],
      "endpoint": "https://verity.basechainlabs.com/api/verify",
      "price": "0.10 USDC",
      "inputExample": {
        "claim": "Is GPT-4 still the most capable OpenAI model?",
        "caller_id": "my-agent-id"
      },
      "outputExample": {
        "verdict": "OUTDATED",
        "confidence": 91,
        "summary": "GPT-4 has been superseded by GPT-4o and o3.",
        "what_changed": "OpenAI released GPT-4o (May 2024) and o3 (late 2024), both outperforming GPT-4.",
        "sources": []
      }
    },
    {
      "id": "deep_check",
      "name": "Deep Fact Check",
      "description": "Input: claim (string). Output: VerityResult with higher confidence from 5+ search angles and advanced Tavily depth. Use for high-stakes verification.",
      "tags": [
        "fact-check",
        "deep-research",
        "high-confidence"
      ],
      "endpoint": "https://verity.basechainlabs.com/api/deep-check",
      "price": "0.50 USDC"
    },
    {
      "id": "batch_verify",
      "name": "Batch Verify",
      "description": "Input: claims array (up to 10 strings). Output: array of VerityResult objects. Use for content audits and fact-check pipelines.",
      "tags": [
        "batch",
        "bulk",
        "content-audit",
        "pipeline"
      ],
      "endpoint": "https://verity.basechainlabs.com/api/batch-verify",
      "price": "0.75 USDC"
    },
    {
      "id": "persistent_memory",
      "name": "Persistent Caller Memory",
      "description": "Remembers domains monitored, topics checked, and verification history across all sessions. Pass a consistent caller_id to activate.",
      "tags": [
        "memory",
        "persistence",
        "context"
      ],
      "endpoint": "https://verity.basechainlabs.com/api/agent",
      "price": "Included with every call"
    }
  ],
  "pricing": {
    "standard": "0.10 USDC \u2014 single claim verify",
    "deep": "0.50 USDC \u2014 deep multi-angle check",
    "batch": "0.75 USDC \u2014 up to 10 claims"
  },
  "protocols": [
    "x402",
    "a2a"
  ],
  "network": "base",
  "payment_address": "0x400d65bb174c546ed92f5d61ce21fbde96b8bacc",
  "useCases": [
    "Verify AI-generated content before publishing",
    "Check if training data or RAG sources are still current",
    "Detect hallucinations in agent outputs",
    "Audit articles and blog posts for outdated claims",
    "Monitor whether key facts about a domain have changed"
  ]
}