MCP TOOL · delegated_credential_guard

Delegated Credential Guard

Enforce delegated scope and expiry without sending PHION a raw access token.

0.003 USDC / call

TRANSPORT
POST /mcp
DIRECT ENDPOINT
/v1/paid/trust/delegated-credential-guard
PAYMENT
x402 · USDC · Base, Polygon, Arbitrum or Solana

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{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "delegated_credential_guard",
    "arguments": {"credential":{"credential_id":"dc-1","scopes":["read"],"expires_at":4102444800},"action":{"required_scopes":["read"]}}
  }
}

What the agent receives

Allow or deny with missing scopes, expiry and credential-envelope hash.

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

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