Stakefy x402 - Complete Solana Payment Infrastructure

The only x402 SDK with enterprise features, cryptographic receipts, and 10x lower fees.

🚀 Live Demo · 📦 NPM · 📊 vs PayAI · 💡 6 Examples

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🔥 Why Stakefy Dominates

Feature	Stakefy x402	PayAI x402-solana
Fees	0.1%	1-2%
Receipt Verification	✅ SHA-256 proofs	❌
Enterprise Features	✅ Full suite	❌
Social Payments	✅ payToX('@user')	❌
Budget Presets	✅ 4 presets	❌
Solana Primitives	✅ Escrow, Drift, Partial Settle	❌
React Library	✅ Complete	❌
Live Examples	✅ 6 working apps	❌

📊 Full Comparison →

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�� Real Savings

Monthly Volume	Stakefy (0.1%)	PayAI (1-2%)	You Save
$10,000	$10	$100-200	$1,080-2,280/year
$100,000	$100	$1,000-2,000	$10,800-22,800/year
$1,000,000	$1,000	$10,000-20,000	$108,000-228,000/year

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⚡ Quick Start (30 seconds)

npm install x402-stakefy-sdk@3.0.0

Basic Payment

import { StakefyX402Client } from 'x402-stakefy-sdk';

const client = new StakefyX402Client({
  apiUrl: 'https://stakefy-x402-production.up.railway.app',
  network: 'mainnet-beta'
});

const payment = await client.createPayment({
  amount: 0.1,
  merchantId: 'YOUR_WALLET',
  reference: 'order-123'
});

Social Payments (Killer Feature!)

import { payToX } from 'x402-stakefy-sdk';

// Pay by username - no wallet address needed!
await payToX(client, '@creator', 0.25);

Budget Presets (No Popup Spam!)

import { oneShot, perMinute, perMonth } from 'x402-stakefy-sdk';

// Approve once, pay 100 times
await oneShot(client, merchant, user, 100, 0.01);

// Per-minute billing
await perMinute(client, merchant, user, 0.1, 60);

// Monthly subscription
await perMonth(client, merchant, user, 9.99);

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🎮 6 Live Examples (Copy & Deploy)

1. Next.js Paywall ✅

Content paywall with instant unlock.

cd examples/nextjs-paywall && npm install && npm run dev

2. Stripe Clone ✅

Monthly subscription billing with 3 tiers.

cd examples/stripe-clone && npm install && npm run dev

3. Content Paywall ✅

OnlyFans-style pay-per-view with tipping.

cd examples/content-paywall && npm install && npm run dev

4. Gaming Microtransactions ✅

In-game shop with session budgets (no wallet popups).

cd examples/gaming-microtx && npm install && npm run dev

5. QR POS Terminal ✅

Point-of-sale with QR code payments.

cd examples/qr-pos && npm install && npm run dev

6. SaaS Team Seats ✅

Pay-per-seat billing with dynamic team management.

cd examples/saas-seats && npm install && npm run dev

View All Examples →

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🏢 Enterprise Features

Stakefy is the ONLY x402 SDK built for enterprises.

import { createEnterpriseClient } from 'x402-stakefy-sdk';

const enterprise = createEnterpriseClient(API_URL);

// Organization verification
const badge = await enterprise.getOrgBadge('org-123');

// Usage quotas
const quota = await enterprise.getQuota('org-123', 'project-456');

// Real-time analytics
const metrics = await enterprise.getMetrics('org-123', 'project-456', 'month');

// Invoice generation
const invoice = await enterprise.generateInvoice('org-123', '2024-10', receipts);

Features PayAI doesn't have:

• ✅ Verified organization badges
• ✅ Per-project usage quotas
• ✅ Real-time analytics & metrics
• ✅ Automated invoice generation
• ✅ Usage data export (CSV/JSON/PDF)

📖 Enterprise Docs →

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🔐 Receipt Verification

Cryptographic proof of payment with SHA-256.

import { verifyReceipt, verifySession } from 'x402-stakefy-sdk';

// Verify single payment
const receipt = await verifyReceipt({
  signature: 'TX_SIG',
  expectedAmount: 0.1,
  expectedMerchant: 'WALLET'
}, connection);

console.log(receipt.proof);     // SHA-256 hash
console.log(receipt.verified);  // true

// Verify entire session
const session = await verifySession('session-123', receipts, connection);
console.log(session.totalPaid);          // 15.50 USDC
console.log(session.merchantVerified);   // true

🔐 Receipt Specification →

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🚀 Advanced Solana Features

Fast Escrow

import { FastEscrow } from 'x402-stakefy-sdk';

const escrow = new FastEscrow(connection);
const state = await escrow.create({
  buyer: 'BUYER_WALLET',
  seller: 'SELLER_WALLET',
  amount: 10.0,
  timeout: 3600 // 1 hour
});

await escrow.release(state.escrowId); // Release to seller

Partial Settlement

import { PartialSettler } from 'x402-stakefy-sdk';

const settler = new PartialSettler();

// Settle incrementally
await settler.settle({
  channelId: 'channel-123',
  amount: 1.0,
  nonce: 1,
  merchant: 'WALLET'
});

Drift Protocol Integration

import { DriftX402 } from 'x402-stakefy-sdk';

const drift = new DriftX402('MERCHANT_WALLET', 0.01);

// Pay $0.01 and execute trade
const trade = await drift.trade({
  market: 'SOL-PERP',
  side: 'long',
  size: 1.0,
  leverage: 10
});

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📦 Complete Package

// Core Features
import { 
  StakefyX402Client,
  payToX,
  oneShot, perMinute, perMonth, nonceOnce
} from 'x402-stakefy-sdk';

// Enterprise
import {
  createEnterpriseClient,
  OrganizationBadge,
  UsageQuota
} from 'x402-stakefy-sdk';

// Receipt Verification
import {
  verifyReceipt,
  verifySession,
  PaymentReceipt
} from 'x402-stakefy-sdk';

// Solana Primitives
import {
  FastEscrow,
  PartialSettler,
  DriftX402
} from 'x402-stakefy-sdk';

// React Components
import {
  PaymentButton,
  Paywall,
  usePayment
} from 'x402-stakefy-sdk';

// Express Middleware
import {
  stakefyPaywall,
  stakefyBudget
} from 'x402-stakefy-sdk';

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📖 Documentation

• Getting Started - Full SDK documentation
• Feature Comparison - Detailed vs PayAI
• Receipt Specification - SHA-256 proof system
• Enterprise Guide - Badges, quotas, analytics
• Deployment Guide - Mainnet/devnet setup
• Examples - 6 production-ready apps
• Launch Summary - What we shipped

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🎯 What We Shipped (v3.0.0)

✅ Core SDK - Payments, verification, sessions ✅ Receipt Verification - SHA-256 cryptographic proofs ✅ Enterprise Features - Badges, quotas, analytics, invoices ✅ Budget Presets - oneShot, perMinute, perMonth, nonceOnce ✅ Social Payments - payToX(@username) ✅ Solana Primitives - Escrow, partial settle, Drift ✅ React Library - Complete hooks + components ✅ Express Middleware - Drop-in paywalls ✅ 6 Live Examples - Copy-paste ready code ✅ Mainnet + Devnet - Production ready

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🏆 Comparison: Stakefy vs PayAI

What PayAI Has:

• Core SDK ✅
• Multi-chain (EVM + Solana) ✅
• Basic payment verification ✅

What Stakefy Has (Everything Above PLUS):

• 90% lower fees (0.1% vs 1-2%) ⭐
• Receipt verification with SHA-256 proofs ⭐
• Enterprise features (badges, quotas, analytics) ⭐
• Social payments (@username) ⭐
• Budget presets (oneShot, perMinute, perMonth) ⭐
• Solana primitives (escrow, Drift, partial settle) ⭐
• Complete React library ⭐
• 6 live examples ⭐

📊 Read Full Comparison →

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💬 Support

• 📧 Email: sayhello@stakefy.io
• 🐦 Twitter: @stakefy
• 💬 GitHub: Issues
• 📖 Docs: Full Documentation

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🚀 Roadmap

• Core SDK with all features
• Receipt verification (SHA-256)
• Enterprise features
• Budget presets
• Social payments
• Solana primitives
• 6 live examples
• Documentation site (docs.stakefy.io)
• Mobile SDK (React Native)
• Multi-chain support (EVM)
• Advanced analytics dashboard

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📄 License

MIT © Stakefy Team

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The only x402 SDK built for enterprises.

Ship payments that scale. Start with 0.1% fees.

PayAI charges 10-20x more and has none of our exclusive features. See why we're better →