@getalby/paidmcp/build/wallets/nwc_wallet.js

Charge for your MCP Server tools using Nostr Wallet Connect

import { LN, nwc } from "@getalby/sdk";
export class NWCWallet {
    _nwcUrl;
    constructor(nwcUrl) {
        this._nwcUrl = nwcUrl;
    }
    async verifyPayment(paymentHash) {
        const nwcClient = new nwc.NWCClient({
            nostrWalletConnectUrl: this._nwcUrl,
        });
        const transaction = await nwcClient.lookupInvoice({
            payment_hash: paymentHash,
        });
        nwcClient.close();
        return !!transaction.settled_at;
    }
    async requestInvoice(args) {
        const ln = new LN(this._nwcUrl);
        const paymentRequest = await ln.requestPayment({ satoshi: args.satoshi }, {
            description: args.description,
        });
        ln.close();
        return {
            payment_hash: paymentRequest.invoice.paymentHash,
            payment_request: paymentRequest.invoice.paymentRequest,
        };
    }
}