Stripe for
Single API Calls
Open source gateway where every tool call is a micro-payment via x402.
No accounts. No keys. Just pay-as-you-go.
// No API keys needed - just HTTP
const response = await fetch('https://gateway.xgate.fi/tools/ocr', {
method: 'POST',
body: JSON.stringify({ image: '...' })
});
// If payment required, get 402 with payment details
if (response.status === 402) {
const { payment_url, amount } = await response.json();
await payWithUSDC(payment_url, amount);
// Retry with payment proof header
return fetch('https://gateway.xgate.fi/tools/ocr', {
headers: { 'x-payment-proof': proof }
});
}
// Done! Get your result
const result = await response.json();Why Choose xGate?
Open source trust, managed convenience
Open Source
MIT licensed. Self-host if you want, or use our managed gateway for convenience.
Zero Setup
No API keys, no accounts, no infrastructure. Just make HTTP requests and pay per call.
Pay $0.01 per Call
Cheaper than running your own infrastructure ($160+/month). Only pay for what you use.
Trustless Payments
Every transaction is on-chain via x402. No custody, no intermediaries, fully transparent.
Premium API Access
Access GPT-4, Google Vision, AWS, and more. We handle bulk pricing and reliability.
Coming Soon: Marketplace
Developers publish tools, earn 70% revenue share. Users access 100+ tools from one gateway.
Why xGate?
The code is open source. You could self-host. But here's why you won't.
Self-Hosting
$160+/month
Deploy infrastructure: Next.js ($20/mo), Postgres ($10/mo), Redis ($10/mo)
Pay for LLM APIs: OpenAI, Anthropic, Google ($100+/mo)
Setup time: 20+ hours configuring x402, database, monitoring
Maintenance: Updates, security patches, scaling, debugging (5+ hrs/mo)
Tool access: Only tools you build/integrate yourself
Support: Community forums only
Total: $160+/mo + 25+ hours
xGate Hosted
$0.01/call
Zero infrastructure: No servers, no databases, no config
Premium APIs included: GPT-4, Claude, Google Vision at bulk pricing
Instant setup: Make your first call in under 60 seconds
Zero maintenance: 99.9% uptime, auto-scaling, monitoring included
Marketplace access: 100+ tools from multiple developers (coming soon)
Support: Discord community + enterprise SLA available
Total: ~$16 for 1,600 calls
Break-even at just 160 calls/month. After that, 10x cheaper than self-hosting.
The Vercel/Supabase model: Open source builds trust.
Managed hosting wins on convenience.
Pricing Comparison
Open source, but way cheaper than self-hosting. Break-even at just 160 calls/month.
Self-Host (Available Now)
Deploy your own gateway
- ❌ Next.js hosting: $20/mo
- ❌ PostgreSQL: $10/mo
- ❌ Redis: $10/mo
- ❌ LLM APIs: $100+/mo
- ❌ 20+ hours setup
- ❌ Ongoing maintenance
Hosted (Coming Soon)
Use our managed gateway
- ✅ Zero infrastructure
- ✅ Zero maintenance
- ✅ Premium API access
- ✅ 99.9% uptime
- ✅ Instant setup
- ✅ ~$16 for 1,600 calls
Enterprise
For teams and high-volume users
- Dedicated infrastructure
- Advanced analytics
- Priority support (SLA)
- Custom rate limits
- White-label options
- Volume discounts
How It Works
Simple HTTP flow with built-in payment handling
Make Request
Agent or human hits your endpoint (e.g., /tools/ocr, /tools/vision)
fetch('/tools/ocr', {
method: 'POST',
body: JSON.stringify({ image })
})Get 402 Payment Required
Gateway responds with HTTP 402 + payment details (amount, asset, facilitator URL)
HTTP/1.1 402 Payment Required
{
"amount": "0.02",
"asset": "USDC",
"payment_url": "https://facilitator..."
}Auto-Pay & Retry
Client SDK pays automatically (USDC on Base), retries with payment header
// Auto-pay happens
await payWithUSDC(payment_url, amount)
// Retry with proof
fetch('/tools/ocr', {
headers: { 'x-payment-proof': proof }
})Get Result
Gateway verifies payment, proxies to provider, returns payload
HTTP/1.1 200 OK
{
"text": "Extracted text...",
"confidence": 0.98
}Architecture Flow
See how requests flow through the xGate system
Client Request
Agent or app makes API call
POST /tools/ocrxGate Gateway
Check payment status
if (!paid) 402Pay & Retry
USDC on Base chain
x-payment-proofGet Result
Proxied response
200 OK + dataBuilt With
Modern stack for maximum performance
Use Cases
Built for agents, developers, and enterprises
AI Agents
Give your agents access to 100+ tools without managing keys, billing, or infrastructure.
Agent pays $0.02 for OCR, $0.01 for web scraping, $0.03 for GPT-4 — all from one gateway.
Developers
Build faster without setting up payment processing, API management, or backend infra.
Prototype your MVP in hours, not weeks. Scale to production without changing code.
Tool Developers (Coming Soon)
Publish your API on our marketplace, earn 70% revenue share with zero infra costs.
Build a sentiment analysis tool, set price at $0.03/call, earn $21 from 1,000 monthly calls.
Enterprises
White-label xGate for your customers or deploy internally with premium support.
Launch your own AI tool marketplace in days. We handle payments, routing, and scaling.
Technical Deep Dive
Implementation details and developer experience
Gateway Implementation
Node/Next.js API routes or Fastify intercept calls like /tools/ocr, /tools/search, /tools/vision. Price map by endpoint (e.g., /vision: $0.03, /scrape: $0.01/KB).
// Next.js API Route
export async function POST(req: Request) {
const endpoint = req.url.split('/').pop();
const price = getPrice(endpoint);
if (!hasPaymentProof(req)) {
return new Response(JSON.stringify({
amount: price,
payment_url: facilitatorUrl
}), { status: 402 });
}
verifyPaymentProof(req);
return proxyToProvider(req);
}Database Schema
Neon + Prisma stores price rules, usage, receipts (tx hash, payer, endpoint, bytes, cost). Built-in analytics and refund tracking.
model Receipt {
id String @id @default(cuid())
txHash String @unique
payer String
endpoint String
amount Decimal
bytes Int?
createdAt DateTime @default(now())
@@index([payer])
@@index([endpoint])
}Facilitator Integration
Use Coinbase x402 facilitator (managed) or self-hosted per spec. Sign challenges with facilitator key; verify payment proofs server-side before proxying.
// Verify payment proof
async function verifyPayment(
proof: string,
challenge: string
): Promise<boolean> {
const result = await facilitator.verify({
proof,
challenge,
amount,
asset: 'USDC'
});
return result.valid;
}Security & DX
Price editing UI, real-time receipts, webhook for payment confirmations, per-tool analytics. Redis for idempotency, Edge Runtime support.
// Developer Console API
PUT /api/prices/:endpoint
{
"price": "0.03",
"currency": "USDC",
"unit": "request"
}
GET /api/analytics?endpoint=/tools/ocr
{
"requests": 1523,
"revenue": "30.46",
"avgResponseTime": "234ms"
}$XGATE Token
The official xGate token. Community-driven, launched on Pump.fun.
Contract Address (CA)
KgQvCMw8JD5mDFazXYnN3LC4Fy7j499qzFMYX2opumpLaunch Status
🟢 LIVE NOW
Launched on Pump.fun
Blockchain
Solana
SPL Token
Disclaimer: This token is for community and governance purposes. It does not represent equity, ownership, or revenue share in xGate. Always DYOR (Do Your Own Research) before trading.
Ready to Build?
Open source gateway. Managed hosting. Pay $0.01/call instead of $160/month.
No signup, no keys, no infrastructure.
# Clone the gateway
git clone https://github.com/xgatefi/xgate.git
cd xgate
# Install dependencies
npm install
# Configure environment
cp .env.example .env
# Start the gateway
npm run dev