Tool Call Policy Guard

Try before payment

Inspect a representative partial result, exact price and copy-ready upgrade instructions. No wallet, signature or payment required.

Copy-ready MCP call

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "tool_call_policy_guard",
    "arguments": {"call":{"tool":"search","arguments":{"q":"public filings"},"destination":"api.example","cost_atomic":"1000"},"intent":{"tools":["search"]},"policy":{"allowed_tools":["search"],"allowed_destinations":["api.example"],"max_cost_atomic":"2000"}}
  }
}

What the agent receives

Allow or deny decision with exact intent, tool, destination and budget violations plus signed receipt.

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