retrieve_transfer

THE RISK

Low Risk

Why retrieve_transfer needs a policy

This tool retrieves and queries existing transfer data without modifying, deleting, or executing any actions. It is a straightforward Read operation that fetches the current state of a transfer record. The low severity reflects minimal risk—an AI agent misusing this would only access transfer status information without causing harm, financial loss, or data modification.

From the tool's definition Tool name is 'retrieve_transfer' and description states it 'Retrieve[s] a transfer by id' and 'Returns current status'. The verb 'Retrieve' and the read-only nature of returning status information indicate a query operation with no side effects.

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

POLICY

How to control retrieve_transfer

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 retrieve_transfer:

policy.json

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

retrieve_transfer 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.

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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 retrieve_transfer

What does the retrieve_transfer tool do? +

Retrieve a transfer by id. Returns current status (APPROVED, IN_PROGRESS, DELIVERED, CANCELLED, etc). 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 retrieve_transfer? +

Register the Mcp Afip MCP server in PolicyLayer and add a rule for retrieve_transfer: 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 retrieve_transfer? +

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

Can I rate-limit retrieve_transfer? +

Yes. Add a rate_limit block to the retrieve_transfer 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 retrieve_transfer completely? +

Set action: deny in the PolicyLayer policy for retrieve_transfer. 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 retrieve_transfer? +

retrieve_transfer 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 →