hetzner_get_latest_invoice
AI agents call hetzner_get_latest_invoice to retrieve information from OpenCollective MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves (gets) the latest invoice from Hetzner Cloud—a read-only operation with no side effects. It does not create, modify, delete, or execute transactions. However, it accesses financial/billing data, which elevates severity to medium due to potential exposure of sensitive financial information if misused by an agent without proper safeguards.
From the tool's definition Tool name 'hetzner_get_latest_invoice' indicates retrieval of invoice data. No description provided, but the sibling tools (cloudflare_get_invoice, hetzner_get_invoice, hetzner_list_invoices) and server context confirm this retrieves financial records without…
Attacks that exploit this kind of access
hetzner_get_latest_invoice. It is categorised as a Read tool in the OpenCollective MCP Server MCP Server, which means it retrieves data without modifying state.
Register the OpenCollective MCP Server MCP server in PolicyLayer and add a rule for hetzner_get_latest_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 OpenCollective MCP Server. Nothing to install.
hetzner_get_latest_invoice 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 hetzner_get_latest_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.
Set action: deny in the PolicyLayer policy for hetzner_get_latest_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.
hetzner_get_latest_invoice is provided by the OpenCollective MCP Server MCP server (theepicsaxguy/opencollective-hetzner-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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