Check if an Italian Fiscal Code is real and existent in the official database.
AI agents call check_IT_fiscal_code to retrieve information from Openapi Mcp Sdk without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves verification status by querying an official database but does not modify, delete, or execute operations. It is a Read operation. Severity is medium because fiscal codes are personally identifiable information (PII) that, if queried about arbitrary individuals without consent, could enable privacy violations or social engineering reconnaissance.
From the tool's definition Tool name and description indicate verification against an official database: 'Check if an Italian Fiscal Code is real and existent in the official database.' This is a query/lookup operation with no side effects.
Documented attack patterns abuse exactly the kind of access check_IT_fiscal_code gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Openapi Mcp Sdk, and nothing reaches the server without passing your rules. This is the rule we recommend for check_IT_fiscal_code:
{
"version": "1",
"default": "deny",
"tools": {
"check_IT_fiscal_code": {}
}
}check_IT_fiscal_code is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Check if an Italian Fiscal Code is real and existent in the official database. It is categorised as a Read tool in the Openapi Mcp Sdk MCP Server, which means it retrieves data without modifying state.
Register the Openapi Mcp Sdk MCP server in PolicyLayer and add a rule for check_IT_fiscal_code: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Openapi Mcp Sdk. Nothing to install.
check_IT_fiscal_code is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the check_IT_fiscal_code rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for check_IT_fiscal_code. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
check_IT_fiscal_code is provided by the Openapi Mcp Sdk MCP server (openapi/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Openapi Mcp Sdk, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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41 Openapi Mcp Sdk tools catalogued and risk-classified — across an index of 43,000+ MCP servers.