get_bank_statement

THE RISK

Low Risk

Why get_bank_statement needs a policy

This tool retrieves historical bank statement data for a specified period from Omie ERP. Reading bank statements is a read-only operation with no capacity to modify, delete, or execute code. While the data may be sensitive (financial records), the tool itself performs no destructive, financial, or transactional actions—it only queries and returns existing information.

From the tool's definition Tool name is 'get_bank_statement' and description states 'Retrieve bank account statement' — the verb 'retrieve' indicates data retrieval without modification or execution of side effects.

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

POLICY

How to control get_bank_statement

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_bank_statement:

policy.json

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

get_bank_statement 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 →

Free to start. No card required.

EXPLORE

Related tools and policies

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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_bank_statement

What does the get_bank_statement tool do? +

Retrieve bank account statement (extrato) for a period from Omie ERP. 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_bank_statement? +

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

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

Can I rate-limit get_bank_statement? +

Yes. Add a rate_limit block to the get_bank_statement 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_bank_statement completely? +

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

get_bank_statement 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 →