import urllib.request import json url = 'http://localhost:8281/mcp' data = { "jsonrpc": "2.0", "id": "1", "method": "tools/call", "params": { "name": "other_register_vacation", "arguments": { "date": "2026-07-15", "employeeId": "010-9999-1111", "unknownData": "이건 차단되어야 해" } } } req = urllib.request.Request(url, data=json.dumps(data).encode('utf-8'), headers={'Content-Type': 'application/json'}) try: with urllib.request.urlopen(req) as response: print(response.read().decode('utf-8')) except Exception as e: print(e)