List entities from Moneybird. Entities: contacts, sales_invoices, estimates, recurring_sales_invoices, products, projects, time_entries, financial_accounts, ledger_accounts. Use filter for server-side filtering (e.g. state:open, period:this_month, contact_id:123).
AI agents call moneybird_list to retrieve information from Moneybird MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a Read operation—it retrieves and queries financial and business data from Moneybird without side effects or data modification. Severity is medium because the tool accesses sensitive financial data (invoices, accounts, ledger entries, contacts) that could be exploited if an AI agent misuses filters to exfiltrate data, but the tool itself has no destructive or financial transaction capabilities.
From the tool's definition Tool name 'moneybird_list' with description 'List entities from Moneybird' indicates data retrieval only. Entities listed are contacts, sales_invoices, estimates, recurring_sales_invoices, products, projects, time_entries, financial_accounts, ledger_accounts.
Documented attack patterns abuse exactly the kind of access moneybird_list gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Moneybird MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for moneybird_list:
{
"version": "1",
"default": "deny",
"tools": {
"moneybird_list": {}
}
}moneybird_list is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
List entities from Moneybird. Entities: contacts, sales_invoices, estimates, recurring_sales_invoices, products, projects, time_entries, financial_accounts, ledger_accounts. Use filter for server-side filtering (e.g. state:open, period:this_month, contact_id:123). It is categorised as a Read tool in the Moneybird MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Moneybird MCP Server MCP server in PolicyLayer and add a rule for moneybird_list: 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 Moneybird MCP Server. Nothing to install.
moneybird_list 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 moneybird_list 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 moneybird_list. 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.
moneybird_list is provided by the Moneybird MCP Server MCP server (vanderheijden86/moneybird-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Moneybird MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
3 Moneybird MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.