create-invoice · Phoenixd MCP Server MCP: Risk & Policy

WHAT IT DOES

What create-invoice does on Phoenixd MCP Server

AI agents use create-invoice to create or update resources in Phoenixd MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Phoenixd MCP Server environment.

WHY IT NEEDS A POLICY

Why create-invoice needs a policy

Creating an invoice generates a payment request but does not move funds itself. It is a reversible write operation (invoices can expire or be ignored). However, misuse could lead to unauthorized payment requests being generated, making severity medium.

From the tool's definition Create a bolt11 invoice with a specified amount and description

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

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"
        }
      ]
    }
  }
}

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Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Phoenixd MCP Server, so you can run agents against it safely.

FAQ

Questions about create-invoice

What does the create-invoice tool do? +

Create a bolt11 invoice with a specified amount and description. It is categorised as a Write tool in the Phoenixd MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create-invoice? +

Register the Phoenixd MCP Server 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 Phoenixd MCP Server. 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 Phoenixd MCP Server MCP server (sharmaz/phoenixd-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

// THE FULL RECORD

create-invoice is one line of Phoenixd MCP Server's registry record.

The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.

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