Generate a Bitcoin Lightning invoice to top up a LightningProx spend token. Returns a BOLT11 payment request and charge ID. Pay the invoice with any Lightning wallet.
AI agents use generate_invoice to commit financial operations through Lightningprox — usually the final step of a payment, billing, or trading workflow. A call moves real money.
This tool initiates a financial transaction by generating a Bitcoin Lightning payment invoice. While it doesn't directly move funds, it creates a payment obligation/request that, when paid, results in real Bitcoin (sats) being transferred. This is a financial commitment instrument and falls squarely in the Financial category. Misuse could result in users being tricked into paying unwanted invoices.
From the tool's definition Generate a Bitcoin Lightning invoice to top up a LightningProx spend token. Returns a BOLT11 payment request and charge ID. Pay the invoice with any Lightning wallet.
Attacks that exploit this kind of access
Generate a Bitcoin Lightning invoice to top up a LightningProx spend token. Returns a BOLT11 payment request and charge ID. Pay the invoice with any Lightning wallet. It is categorised as a Financial tool in the Lightningprox MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Lightningprox MCP server in PolicyLayer and add a rule for generate_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 Lightningprox. Nothing to install.
generate_invoice is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the generate_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 generate_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.
generate_invoice is provided by the Lightningprox MCP server (unixlamadev-spec/lightningprox-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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