create_invoice_item

Create a new invoice line item

SERVERStripe SOURCE@modelcontextprotocol/server-stripe

Critical RISK CLASS

Category Financial

Parameters 00 required

Recommended Approval-gatedsee the rule below

Registry record Grade D, identity verified Pull the record →

This record as markdown: /tools/stripe/create-invoice-item.md

WHAT IT DOES

What create_invoice_item does on Stripe

AI agents use create_invoice_item to commit financial operations through Stripe, usually the final step of a payment, billing, or trading workflow. A call moves real money.

RISK

Why create_invoice_item is rated Critical

This tool creates invoice line items, which are components of invoices that represent charges or fees. Even though it doesn't process payment directly, it commits a financial obligation by adding billable line items to customer invoices. Misuse could lead to erroneous charges, fraudulent billing, or financial harm to customers.

From the tool's definition Tool name 'create_invoice_item' and description 'Create a new invoice line item' combined with sibling tools (create_invoice, create_refund, create_payment_link, cancel_subscription) establish this as part of Stripe's financial transaction infrastructure.

Risk signalsAdds charges to customer invoices

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_invoice_item safely

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

create_invoice_item Approval-gated

Any call to create_invoice_item is blocked until a human approves it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_invoice_item": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

GATE THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about create_invoice_item

What does the create_invoice_item tool do? +

Create a new invoice line item. It is categorised as a Financial tool in the Stripe MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on create_invoice_item? +

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

What risk level is create_invoice_item? +

create_invoice_item is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit create_invoice_item? +

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

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

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

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