get_webhook_events

THE RISK

Low Risk

Why get_webhook_events needs a policy

The verb 'Get' combined with the passive nature of webhook events (already-occurred notifications) means this tool retrieves historical event data without side effects. No data is created, modified, deleted, or financial transactions are initiated by this tool—it only queries existing webhook event logs.

From the tool's definition Tool name 'get_webhook_events' and description 'Get webhook events (payment confirmations, transfers, etc.)' indicate retrieval and querying of event data without modification.

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

POLICY

How to control get_webhook_events

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_webhook_events:

policy.json

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

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

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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.
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FAQ

Questions about get_webhook_events

What does the get_webhook_events tool do? +

Get webhook events (payment confirmations, transfers, 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 get_webhook_events? +

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

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

Can I rate-limit get_webhook_events? +

Yes. Add a rate_limit block to the get_webhook_events 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_webhook_events completely? +

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

get_webhook_events 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.

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