retrieve_event

Retrieve a single event by id. Useful when auditing a webhook delivery or replaying state — fetch the event Coinbase Commerce recorded server-side and compare against what your endpoint received.

ServerMcp Afip
CategoryRead

How to control retrieve_event ↓

WHAT IT DOES

What retrieve_event does on Mcp Afip

AI agents call retrieve_event to retrieve information from Mcp Afip without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

THE RISK

Low Risk

Why retrieve_event needs a policy

This tool fetches and queries existing event data for audit purposes with no side effects. It is a straightforward read operation that retrieves information without creating, modifying, deleting, or executing anything. The low severity reflects minimal blast radius—an agent can only view event records that already exist.

From the tool's definition Tool name is 'retrieve_event' and description states 'Retrieve a single event by id' with no modification or execution of external operations. The use case ('auditing a webhook delivery or replaying state') confirms passive data retrieval.

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

POLICY

How to control retrieve_event

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_event:

policy.json

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

retrieve_event 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_event

What does the retrieve_event tool do? +

Retrieve a single event by id. Useful when auditing a webhook delivery or replaying state — fetch the event Coinbase Commerce recorded server-side and compare against what your endpoint received. 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_event? +

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

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

Can I rate-limit retrieve_event? +

Yes. Add a rate_limit block to the retrieve_event 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_event completely? +

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

retrieve_event 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.

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