Stakefy x402 Client SDK

Client SDK for Stakefy x402 - The best Solana payment facilitator with only 0.1% fees.

Installation

npm install stakefy-x402-client

Quick Start

import { StakefyX402Client } from 'stakefy-x402-client';
import { Keypair } from '@solana/web3.js';

// Initialize client
const client = new StakefyX402Client({
  facilitatorUrl: 'https://stakefy-x402-production.up.railway.app',
  merchantId: 'your_merchant_id'
});

// Create payment session
const session = await client.createPayment({
  amount: 10,           // 10 USDC
  reference: 'order_123'
});

console.log('Pay to:', session.depositAddress);
console.log('Amount:', session.amount + session.feeAmount, 'USDC');

// Pay with wallet
const payerWallet = Keypair.fromSecretKey(/* your key */);
const signature = await client.payWithWallet(session, payerWallet);

// Verify payment
const status = await client.verifyPayment(session.sessionId);
console.log('Payment status:', status.isPaid ? 'Completed' : 'Pending');

Features

• ✅ 0.1% fees (10x cheaper than competitors)
• ✅ USDC payments on Solana
• ✅ Simple API
• ✅ TypeScript support
• ✅ Automatic retries

API Reference

createPayment(options)

Create a new payment session.

Parameters:

• amount (number): Payment amount in USDC
• reference (string): Your order/transaction reference
• metadata (object, optional): Additional data

Returns: Payment session with deposit address

payWithWallet(session, payerKeypair)

Send payment from a Solana wallet.

Parameters:

• session: Payment session from createPayment
• payerKeypair: Solana keypair with USDC

Returns: Transaction signature

verifyPayment(sessionId)

Check payment status.

Parameters:

• sessionId: Session ID from createPayment

Returns: Payment status and verification

getPaymentStatus(sessionId)

Get full payment session details.

Links

• GitHub
• Documentation
• Live API
• Merchant SDK

License

MIT