get_domain_info

THE RISK

Low Risk

Why get_domain_info needs a policy

This tool performs a read-only lookup of publicly available domain registration information for Brazilian (.br) domains. It does not create, modify, delete, or execute any actions—it simply retrieves and returns existing data. The low severity reflects minimal risk from misuse, as domain WHOIS data is typically public and the operation has no destructive or operational consequences.

From the tool's definition Tool name 'get_domain_info' and description 'Look up .br domain registration info' indicate a query operation that retrieves public domain registration data with no side effects.

Documented attack patterns abuse exactly the kind of access get_domain_info gives an agent:

POLICY

How to control get_domain_info

PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Afip, and nothing reaches the server without passing your rules. This is the rule we recommend for get_domain_info:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_domain_info": {}
  }
}

get_domain_info is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Mcp Afip — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

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EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get_domain_info

What does the get_domain_info tool do? +

Look up .br domain registration info. It is categorised as a Read tool in the Mcp Afip MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_domain_info? +

Register the Mcp Afip MCP server in PolicyLayer and add a rule for get_domain_info: 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 Mcp Afip. Nothing to install.

What risk level is get_domain_info? +

get_domain_info is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_domain_info? +

Yes. Add a rate_limit block to the get_domain_info 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.

How do I block get_domain_info completely? +

Set action: deny in the PolicyLayer policy for get_domain_info. 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.

What MCP server provides get_domain_info? +

get_domain_info is provided by the Mcp Afip MCP server (codespar/mcp-dev-latam). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Mcp Afip tool call.

Start from Mcp Afip, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →