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Card snapshot

verification-agent-a2a.d-mueller.workers.dev · 2026-05-22 23:08:27 UTC · 80b3a13fe8879eb8c5b079647ef0c510a22dcfcc1e75ef6766a7186f3c5e5001

This is a frozen copy of the agent's agent-card.json as we observed it at the timestamp above. We capture a new snapshot every time the card's content hash changes. Useful for: forensic drift analysis, verifying downstream callers see the right version, reproducing routing decisions made historically.

{
  "protocolVersion": "1.0.0",
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "supportedInterfaces": [
    {
      "url": "https://verification-agent-a2a.d-mueller.workers.dev/message:send",
      "protocolBinding": "HTTP+JSON",
      "protocolVersion": "1.0.0"
    }
  ],
  "skills": [
    {
      "id": "verify-claim",
      "name": "Verify Claim",
      "description": "This agent verifies exactly one factual claim against a supplied source text. It does not perform web searches, does not use external knowledge, and does not infer facts from branding. The verification is strictly limited to the provided project text and RAG context to ensure 100% adherence to the source material without hallucinations or outside interference.",
      "tags": [
        "verification",
        "fact-checking",
        "x402",
        "payments",
        "usdc",
        "base"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "examples": [
        "Verify whether a supplied claim is supported by project text or RAG context."
      ]
    }
  ],
  "name": "Verification Agent A2A",
  "provider": {
    "organization": "Dezentrale Ltd.",
    "url": "https://www.nftcompass.io",
    "mail": "agent@nftcompass.io,"
  },
  "description": "This agent verifies exactly one factual claim against a supplied source text. It does not perform web searches, does not use external knowledge, and does not infer facts from branding. The verification is strictly limited to the provided project text and RAG context to ensure 100% adherence to the source material without hallucinations or outside interference.",
  "url": "https://verification-agent-a2a.d-mueller.workers.dev/",
  "version": "0.1.2",
  "documentationUrl": "https://verification-agent-a2a.d-mueller.workers.dev/api/verify/requirements",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false
  },
  "notes": [
    "Read the requirements before sending a paid request.",
    "This agent checks exactly one claim per request.",
    "A website URL alone is only a reference and may result in an unclear verdict.",
    "Price hint: $0.05 per request.",
    "Accepted payment: USDC on Base (eip155:8453).",
    "Final payment requirements are returned via HTTP 402.",
    "Exact input limits and validation rules are defined at /api/verify/requirements."
  ]
}