list_invoices

List invoices with optional pagination and filtering

SERVERPayPal SOURCE@modelcontextprotocol/server-paypal

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity verified Pull the record →

This record as markdown: /tools/paypal/list-invoices.md

WHAT IT DOES

What list_invoices does on PayPal

AI agents call list_invoices to retrieve information from PayPal without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why list_invoices is rated Low

This tool retrieves and queries invoice records with no side effects. It falls squarely into the Read category. However, severity is medium rather than low because invoices may contain sensitive financial information (payment amounts, customer details, transaction history), and unauthorized access to this data could expose personally identifiable information or sensitive business data.

From the tool's definition Tool name is 'list_invoices' and description states 'List invoices with optional pagination and filtering', indicating retrieval of invoice data without modification.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_invoices safely

PolicyLayer is an MCP gateway: it sits between your AI agents and PayPal, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_invoices, this is the rule to start with:

list_invoices Allowed

list_invoices is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

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

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect PayPal, apply this rule, and every list_invoices call is checked against it from then on.

FAQ

Questions about list_invoices

What does the list_invoices tool do? +

List invoices with optional pagination and filtering. It is categorised as a Read tool in the PayPal MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_invoices? +

Register the PayPal MCP server in PolicyLayer and add a rule for list_invoices: 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 PayPal. Nothing to install.

What risk level is list_invoices? +

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

Can I rate-limit list_invoices? +

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

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

list_invoices is provided by the PayPal MCP server (@modelcontextprotocol/server-paypal). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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