Multi-Chain Support
Access Ethereum, Solana, BSC, Polygon and more through a unified API interface.
Access multiple blockchain networks through a single, powerful API. Build decentralized applications faster with reliable infrastructure.
Connect to major blockchain networks through a unified API
Everything you need to build powerful blockchain applications
Access Ethereum, Solana, BSC, Polygon and more through a unified API interface.
Sub-100ms response times with globally distributed infrastructure.
99.9% uptime guarantee with enterprise-grade security and DDoS protection.
WebSocket subscriptions for real-time blockchain events and transactions.
RESTful API with comprehensive documentation and SDKs for all major languages.
Pay only for what you use. From free tier to enterprise solutions.
Get started in minutes with our simple onboarding process
Sign up for free and get instant access to the dashboard.
Generate your unique API key to authenticate requests.
Select the blockchain networks you want to connect to.
Make your first API call and start building your dApp.
Start building in minutes with our developer-friendly API. No complex setup required.
# Get wallet balance
curl -X POST "https://1stnode.com/api/balance/check" \
-H "X-API-Key: your_api_key" \
-H "Content-Type: application/json" \
-d '{"address": "TRX7...xyz", "network": "tron"}'
# Response
{
"success": true,
"data": {
"address": "TRX7...xyz",
"network": "tron",
"balance_trx": 1250.50,
"balance_usdt": 5000.00
}
}
Choose the plan that fits your needs. Upgrade or downgrade anytime.
👉 Только для разработки и тестирования интеграции
✔️ Использование Маленькие боты / MVP / первые клиенты
Использование Малые обменники / сервисы мониторинга
👉 Основной рабочий тариф (самый важный)
👉 High-load production / core инфраструктура
Everything you need to know about 1stNode API
We currently support TRON (TRX, TRC20 tokens including USDT), Ethereum (ETH, ERC20), BNB Chain (BNB, BEP20), and Polygon (MATIC). More networks are being added regularly.
Simply create a free account, generate your API key from the dashboard, and start making API calls. No credit card required for the free tier.
Rate limits depend on your plan. Free tier allows 1 request per second, Pro allows 10 req/sec, and Enterprise offers custom limits based on your needs.
Yes! We provide real-time WebSocket connections for transaction monitoring, block updates, and custom event subscriptions on all paid plans.
All API communications are encrypted with TLS 1.3. We offer API key authentication, IP whitelisting, and optional 2FA for account security.
Yes, you can change your plan at any time. When upgrading, you get prorated credit for unused days on your current plan.
Join thousands of developers building on 1stNode infrastructure.
No credit card required