@getalby/mcp/build/index.js

MCP server for controlling a Lightning wallet using Nostr Wallet Connect

#!/usr/bin/env node
import "websocket-polyfill";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
import { ErrorCode, McpError } from "@modelcontextprotocol/sdk/types.js";
import { nwc } from "@getalby/sdk";
import dotenv from "dotenv";
import express from "express";
import { createMCPServer } from "./mcp_server.js";
import { addSSEEndpoints } from "./sse.js";
import { addStreamableHttpEndpoints } from "./streamable_http.js";
// Load environment variables from .env file
dotenv.config();
class NWCServer {
    async runSTDIO() {
        try {
            // NWC connection string should be provided as an environment variable
            const NWC_CONNECTION_STRING = process.env.NWC_CONNECTION_STRING;
            if (!NWC_CONNECTION_STRING) {
                throw new Error("NWC_CONNECTION_STRING environment variable is required");
            }
            const client = new nwc.NWCClient({
                nostrWalletConnectUrl: NWC_CONNECTION_STRING,
            });
            const transport = new StdioServerTransport();
            const server = createMCPServer(client);
            await server.connect(transport);
            // console.log("Server running in STDIO mode");
        }
        catch (error) {
            throw new McpError(ErrorCode.InternalError, `Failed to connect to NWC wallet: ${error instanceof Error ? error.message : String(error)}`);
        }
    }
    async runHTTP() {
        const app = express();
        addSSEEndpoints(app);
        addStreamableHttpEndpoints(app);
        const port = parseInt(process.env.PORT || "3000");
        app.listen(port);
        console.log("Server running in HTTP mode on port", port);
    }
}
switch (process.env.MODE || "STDIO") {
    case "HTTP":
        new NWCServer().runHTTP().catch(console.error);
        break;
    case "STDIO":
        new NWCServer().runSTDIO().catch(console.error);
        break;
    default:
        console.error("Unknown transport: " + process.env.MCP_TRANSPORT);
}