list_invoices
List invoices with optional filters. Use status "OVERDUE" to find unpaid invoices past due date.
This record as markdown: /tools/io-favcrm-favcrm/list-invoices.md
What list_invoices does on FavCRM
AI agents call list_invoices to retrieve information from FavCRM 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 |
|---|---|---|---|
sort | string | — | Sort column |
limit | number | — | Max results (default 20) |
order | string | — | Sort order |
search | string | — | Search by invoice number, account name, email, or phone |
status | string | — | Filter by invoice status |
Parameters from the server's own tool schema.
Why list_invoices is rated Low
This tool retrieves or queries invoice data without creating, modifying, or deleting any records. It is a standard read operation that presents financial information but does not move money, execute transactions, or make irreversible changes. The low severity reflects minimal blast radius—misuse would expose data visibility but not cause financial transactions or data loss.
From the tool's definition Tool name 'list_invoices' and description 'List invoices with optional filters' indicate data retrieval with no modification capability. The mention of filtering by status (e.g., 'OVERDUE') confirms query-only functionality.
Attacks that exploit this kind of access
The rule that runs list_invoices safely
PolicyLayer is an MCP gateway: it sits between your AI agents and FavCRM, 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 is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect FavCRM, apply this rule, and every list_invoices call is checked against it from then on.
Questions about list_invoices
List invoices with optional filters. Use status "OVERDUE" to find unpaid invoices past due date. It is categorised as a Read tool in the FavCRM MCP Server, which means it retrieves data without modifying state.
list_invoices accepts 5 parameters: sort, limit, order, search, status. The full parameter table on this page comes from the server's own tool schema.
Register the FavCRM 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 FavCRM. Nothing to install.
list_invoices is a Read tool with low risk. Read-only tools are generally safe to allow by default.
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.
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.
list_invoices is provided by the FavCRM MCP server (https://api.favcrm.io/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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