@getalby/mcp/build/tools/lightning/fetch_l402.js

MCP server for controlling a Lightning wallet using Nostr Wallet Connect

import { l402 } from "@getalby/lightning-tools";
import { z } from "zod";
export function registerFetchL402Tool(server, webln) {
    server.registerTool("fetch_l402", {
        title: "Fetch L402",
        description: "Fetch a paid resource protected by L402",
        inputSchema: {
            url: z.string().describe("the URL to fetch"),
            method: z
                .string()
                .nullish()
                .describe("HTTP request method. Default GET"),
            body: z
                .string()
                .nullish()
                .describe("HTTP request body as a string (either plaintext or stringified JSON)"),
        },
        outputSchema: {
            content: z.string().describe("Response content"),
        },
    }, async (params) => {
        const requestOptions = {
            method: params.method || undefined,
        };
        if (params.method &&
            params.method !== "GET" &&
            params.method !== "HEAD") {
            requestOptions.body = params.body;
            requestOptions.headers = {
                "Content-Type": "application/json",
            };
        }
        const result = await l402.fetchWithL402(params.url, requestOptions, {
            webln,
        });
        const responseContent = await result.text();
        if (!result.ok) {
            console.error("L402 fetch returned non-OK status", result.status, responseContent);
            throw new Error("fetch returned non-OK status: " +
                result.status +
                " " +
                responseContent);
        }
        const responseData = {
            content: responseContent,
        };
        return {
            content: [
                {
                    type: "text",
                    text: responseContent,
                },
            ],
            structuredContent: responseData,
        };
    });
}