send_invoice

Send an invoice to customer

SERVERGhl SOURCEghl-mcp-server

Critical RISK CLASS

Category Financial

Parameters 51 required

Recommended Approval-gatedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/ghl/send-invoice.md

WHAT IT DOES

What send_invoice does on Ghl

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

Parameter	Type	Required	Description
`altId`	string	—	Location ID
`emailTo`	string	—	Email address to send to
`message`	string	—	Email message
`subject`	string	—	Email subject
`invoiceId`	string	Yes	Invoice ID

Parameters from the server's own tool schema.

RISK

Why send_invoice is rated Critical

Sending an invoice commits a financial obligation by creating a legally recognized demand for payment. This is a financial operation that can result in money movement and alters the customer's accounting records. While the tool itself does not directly transfer funds, it initiates the financial chain that leads to payment obligations.

From the tool's definition Tool name is 'send_invoice' with description 'Send an invoice to customer'. An invoice is a financial document that creates a payment obligation and initiates a financial transaction.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs send_invoice safely

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

send_invoice Approval-gated

Any call to send_invoice 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": {
    "send_invoice": {
      "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 Ghl, apply this rule, and every send_invoice call is checked against it from then on.

FAQ

Questions about send_invoice

What does the send_invoice tool do? +

Send an invoice to customer. It is categorised as a Financial tool in the Ghl MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

What parameters does send_invoice accept? +

send_invoice accepts 5 parameters: altId, emailTo, message, subject, invoiceId. Required: invoiceId. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on send_invoice? +

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

What risk level is send_invoice? +

send_invoice 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 send_invoice? +

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

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

send_invoice is provided by the Ghl MCP server (ghl-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Ghl, and thousands of servers like it.

This server

All 253 Ghl tools → Critical-risk tools on this server →

Across the catalogue

pay_invoice on Bitcoin MCP Server →menese_send on Mcp Menesesdk →approve_supplier_invoice on Tripletex MCP Server → All critical-risk MCP tools → The MCP Attack Database →

Guides

Govern MCP payment tools →Human-in-the-loop →Tool call approval →