create_invoice

Create a new invoice

SERVERGhl SOURCEghl-mcp-server

Medium RISK CLASS

Category Write

Parameters 72 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

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

WHAT IT DOES

What create_invoice does on Ghl

AI agents use create_invoice to create or update resources in Ghl, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Ghl environment.

Parameter	Type	Required	Description
`altId`	string	—	Location ID
`items`	array	—	Invoice items
`title`	string	Yes	Invoice title
`dueDate`	string	—	Due date
`currency`	string	—	Currency code
`contactId`	string	Yes	Contact ID
`issueDate`	string	—	Issue date

Parameters from the server's own tool schema.

RISK

Why create_invoice is rated Medium

Creating an invoice is a Write operation that generates a new financial document in the system. While it doesn't directly move money, invoices represent financial obligations and can trigger payment requests to customers, making the blast radius high if misused (e.g., sending fraudulent or erroneous invoices to clients).

From the tool's definition create_invoice — 'Create a new invoice'

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_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 create_invoice, this is the rule to start with:

create_invoice Rate-limited

create_invoice stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_invoice": {
      "limits": [
        {
          "counter": "create_invoice_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about create_invoice

What does the create_invoice tool do? +

Create a new invoice. It is categorised as a Write tool in the Ghl MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does create_invoice accept? +

create_invoice accepts 7 parameters: altId, items, title, dueDate, currency, contactId, issueDate. Required: title, contactId. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on create_invoice? +

Register the Ghl MCP server in PolicyLayer and add a rule for create_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 create_invoice? +

create_invoice is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit create_invoice? +

Yes. Add a rate_limit block to the create_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 create_invoice completely? +

Set action: deny in the PolicyLayer policy for create_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 create_invoice? +

create_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.

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