Performance Metrics
Built for Production Scale
Industry-leading reliability and performance benchmarks that power mission-critical payment infrastructure.
Integration Time
From signup to first verified payment on the x402 protocol
Uptime Guarantee
Contractual SLA with failover redundancy
Universal Interface
Works across all supported blockchains
P99 Latency
Globally distributed edge infrastructure
Why Developers Choose
Vantage402
Developer-First API
Clean RESTful endpoints with comprehensive OpenAPI specifications and fully typed SDKs. Deploy production-ready x402 payment verification without wrestling with chain-specific transaction parsers or RPC quirks.
Low-Latency Verification
From signup to first successful verification in under 10 minutes. Production-grade performance with <185ms p99 response times and instant API key provisioning. No complex onboarding, just generate credentials and start building.
Production-Grade SLA
Contractual 99.99% uptime SLA backed by intelligent RPC failover and geographically-distributed infrastructure. We handle chain reorganizations, node failures, and network congestion so you don't have to.
WebSocket Event Streams
Bidirectional WebSocket streams deliver real-time transaction status updates directly to your application. Server-pushed confirmations eliminate inefficient polling patterns and reduce end-to-end latency to sub-second levels.
Chain-Agnostic Architecture
Single unified API supporting Solana, Ethereum, and all EVM-compatible networks. Switch between chains at runtime without code modifications. Write once, verify anywhere across the multi-chain ecosystem.
Edge-Deployed Network
Globally distributed edge infrastructure with intelligent geo-routing. Requests automatically route to the nearest available node, minimizing round-trip latency for users worldwide, whether you're serving 10 or 10 million users.
$VANTAGE Token:
Platform-Aligned Economics
$VANTAGE aligns economic incentives with platform growth through fee cashback, on-chain governance, and transparent value accrual mechanisms.
API Fee Cashback
Hold $VANTAGE to earn proportional cashback on API usage fees. Automated smart contract distribution creates sustainable incentives for long-term protocol alignment and active participation.
Protocol Governance
Token-weighted voting power over critical protocol parameters, feature prioritization, and treasury allocation. All governance actions execute transparently on-chain with verifiable vote tallying.
Revenue Buybacks
A percentage of protocol revenue automatically triggers programmatic token buybacks through immutable smart contracts. Transparent on-chain mechanism creates deflationary pressure tied directly to platform usage.
Integrate x402 Payments
in Minutes, Not Days
Verify cryptographic payment proofs through simple RESTful endpoints. No blockchain expertise required, just straightforward HTTP requests with comprehensive error handling.
const response = await fetch('https://api.vantage402.com/v1/payments/verify', {
method: 'POST',
headers: {
'Content-Type': 'application/json',
'Authorization': 'Bearer YOUR_API_KEY'
},
body: JSON.stringify({
payment_proof: 'BASE64_ENCODED_PAYMENT_PROOF',
amount: 1000000,
recipient: 'YOUR_WALLET_ADDRESS',
network: 'solana'
})
});
const data = await response.json();
console.log('Payment verified:', data);