@getalby/mcp/build/tools/nwc/make_invoice.js

MCP server for controlling a Lightning wallet using Nostr Wallet Connect

import { z } from "zod";
import { transactionSchema } from "./schemas/transaction.js";
export function registerMakeInvoiceTool(server, client) {
    server.registerTool("make_invoice", {
        title: "Make Invoice",
        description: "Create a lightning invoice",
        inputSchema: {
            amount: z.number().describe("amount in millisats"),
            expiry: z.number().describe("expiry in seconds").nullish(),
            description: z
                .string()
                .describe("note, memo or description describing the invoice")
                .nullish(),
            description_hash: z
                .string()
                .describe("hash of a note, memo or description that is too long to fit within the invoice")
                .nullish(),
            metadata: z
                .object({})
                .passthrough()
                .describe("Optional metadata to include with the payment")
                .nullish(),
        },
        outputSchema: transactionSchema,
    }, async (params) => {
        const result = await client.makeInvoice({
            amount: params.amount,
            description: params.description || undefined,
            description_hash: params.description_hash || undefined,
            expiry: params.expiry || undefined,
            metadata: params.metadata || undefined,
        });
        return {
            content: [
                {
                    type: "text",
                    text: JSON.stringify(result, null, 2),
                },
            ],
            structuredContent: result,
        };
    });
}