OAuth Issuer Binding Evidence

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Copy-ready MCP call

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "oauth_issuer_binding_evidence",
    "arguments": {"claims":{"iss":"https://issuer.example","aud":"https://api.example"},"expected_issuer":"https://issuer.example","expected_audience":"https://api.example"}
  }
}

What the agent receives

Allow or deny with issuer/audience match and claims digest.

No API key or subscription. The first paid request returns HTTP 402 payment requirements; an x402 client signs and retries automatically.