get_invoice

Get invoice by ID

SERVERGhl SOURCEghl-mcp-server

Low RISK CLASS

Category Read

Parameters 21 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

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

WHAT IT DOES

What get_invoice does on Ghl

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

Parameter	Type	Required	Description
`altId`	string	—	Location ID
`invoiceId`	string	Yes	Invoice ID

Parameters from the server's own tool schema.

RISK

Why get_invoice is rated Low

This tool retrieves invoice data by identifier. It performs a straightforward read/query operation with no side effects, no data modification, no execution of external commands, and no financial transaction. The action is purely informational lookup.

From the tool's definition Tool name is 'get_invoice' and description states 'Get invoice by ID' — a retrieval operation with no modification or deletion.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_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 get_invoice, this is the rule to start with:

get_invoice Allowed

get_invoice 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": {
    "get_invoice": {}
  }
}

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

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

FAQ

Questions about get_invoice

What does the get_invoice tool do? +

Get invoice by ID. It is categorised as a Read tool in the Ghl MCP Server, which means it retrieves data without modifying state.

What parameters does get_invoice accept? +

get_invoice accepts 2 parameters: altId, 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 get_invoice? +

Register the Ghl MCP server in PolicyLayer and add a rule for get_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 get_invoice? +

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

Can I rate-limit get_invoice? +

Yes. Add a rate_limit block to the get_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 get_invoice completely? +

Set action: deny in the PolicyLayer policy for get_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 get_invoice? +

get_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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