Real-Time Blockchain Monitoring Service
Transaction Alerts & Wallet Tracking
One service, multiple blockchains
Unified event schema across all chains. No more chain-specific integrations.
One service for every crypto use case
Teams use Chain Monitor for real-time blockchain monitoring without running nodes or hiring infra experts. Webhook notifications for payment gateways, wallets, marketplaces, and Telegram bots—one integration, multiple chains, instant alerts.
How to monitor blockchain transactions
Real-time blockchain monitoring in three simple steps. The most developer-friendly transaction monitoring for crypto wallets.
Add your wallet
Enter the blockchain wallet address you want to monitor
Configure filters
Set minimum amount thresholds and choose which tokens to track
Receive webhooks
Get instant notifications via webhook when new transactions are detected
What it looks like for developers
Create a monitor via the API — and receive a signed JSON webhook the moment a matching transaction hits the blockchain.
POST /v1/wallets
Authorization: Bearer api_key_xxx
Content-Type: application/json
{
"address": "0x742d35Cc...f0bEb1",
"networkUuid": "net_ethereum",
"tokenUuids": ["tok_usdt"],
"minAmount": "100",
"webhookUrl": "https://your-app.com/webhook",
"notifySettings": { "webhook": true }
}POST https://your-app.com/webhook
X-Webhook-Signature: a1b2c3d4...
{
"eventType": "transaction_detected",
"timestamp": "2026-04-01T12:30:00Z",
"data": {
"txHash": "0x8f3a...e92b",
"network": "ETHEREUM",
"blockNumber": 21485738,
"direction": "in",
"asset": "USDT",
"amount": "250.00",
"from": "0xAbC1...9dEf",
"to": "0x742d...bEb1",
"timestamp": "2026-04-01T12:30:00Z"
}
}Every webhook includes X-Webhook-Signature (HMAC-SHA256) so you can verify authenticity on your server. Unified JSON schema across all chains — no per-chain parsing.
Simple, transparent pricing
No subscriptions. Pay only for what you use.
What's included in every pack
Start free with 1000 credits
No credit card required. Enough for 1000 webhooks or 1000 telegram alerts.
Blockchain Monitoring Service | Real-Time Alerts & Wallet Monitoring
Chain Monitor is a real-time blockchain monitoring service for transaction monitoring. Get instant webhook notifications about new blockchain transactions. Monitor ETH, BSC, Polygon and TRON wallets with automated alerts. Crypto wallet monitoring service with multi-chain support—monitor wallet activity, smart contract events, and receive real-time alerts without running nodes.
Use our transaction monitoring service for payment gateways, crypto casinos, Telegram bots, custodial wallets and e-commerce. Blockchain webhook notifications, unified event schema, minimal setup. Best tools for wallet activity monitoring. Start with a free plan and scale as you grow.