Stop polling blockchains.
Get real-time events instantly.
Monitor wallets, track transactions, and trigger webhooks across 36+ blockchains — with a single API.
No infrastructure · No delays · Just real-time blockchain data.
No polling · Real-time events · Webhook-first
How it works
Add a wallet or contract
Subscribe to any address on 36+ chains with a single API call.
Set a webhook endpoint
Point FluxRail at your server. We handle the rest.
Receive real-time blockchain events
Get instant HTTP notifications the moment transactions happen.
Real-time events. No polling.
Events delivered to your webhook within seconds of on-chain confirmation.
Stop writing polling loops. FluxRail pushes events to you automatically.
Webhooks, REST, and real-time streams — designed for modern architectures.
Everything you need to monitor blockchains
One API. 36+ chains. Real-time events.
Real-time Events
Get notified the moment a transaction hits the chain. No polling, no delays, no missed events.
Wallet Monitoring
Track any wallet or contract across multiple chains. Monitor transfers, approvals, and contract interactions.
Multi-chain API
36+ blockchains including Ethereum, Bitcoin, Solana, TRON, Aptos, Cardano, and TON — one API for all of them.
Webhooks-first
Flexible integration with webhooks, REST API, and WebSocket. Built for developers who want push, not pull.
Paymaster Transfers
Send USDT and native coins without holding gas. FluxRail sponsors gas fees on EVM and TRON — your users just send.
Enterprise Ready
99.9% uptime SLA, enterprise-grade security, and dedicated support for production workloads.
Three core services, one API key
Monitoring, transfers, and wallet utilities — everything in one place
Blockchain Monitoring
Real-time wallet and contract event tracking
Subscribe to any wallet or contract on 36+ chains. Get instant webhook notifications for transfers, approvals, NFT mints, and contract interactions — no polling required.
/subscriptions/webhooks/eventsPaymaster Transfers
Gas-free USDT and native coin transfers
Send USDT or native coins without the sender needing to hold gas. FluxRail's paymaster sponsors gas fees on EVM chains and energy on TRON — the fee is simply deducted from the transfer amount.
Higher tiers get discounts on transfer fees. Private keys are never stored — used only in-flight for signing.
/transfers/transfers/{id}Wallet Services
HD wallet generation and address derivation
Generate BIP39 mnemonics, derive addresses and private keys across 21 coins, and validate addresses — all stateless. Nothing is stored on FluxRail servers.
/wallet/mnemonic/wallet/derive/wallet/validateWhat can you build?
Developers use FluxRail to power all kinds of event-driven applications
Crypto payment notifications
Confirm payments instantly when a customer sends crypto to your address.
Exchange deposit monitoring
Credit user accounts the moment deposits land on-chain.
Wallet activity tracking
Alert users when their wallets send or receive funds across any chain.
NFT mint alerts
Notify collectors the moment a mint transaction confirms.
On-chain automation
Trigger backend workflows automatically when smart contract events fire.
Why developers choose FluxRail
No polling
We monitor the chain for you and push events to your webhook. Zero infrastructure to manage.
Predictable pricing
Fixed monthly plans with clear notification limits. No surprise bills from RPC call overages.
One API for 36+ chains
The same API works across Ethereum, Solana, TRON, Bitcoin, and dozens more. No chain-specific SDKs.
Faster than traditional blockchain APIs
Events delivered in seconds, not minutes. Built for latency-sensitive applications.
36+ Blockchains Supported
Monitor transactions across all major blockchain networks with a single API
And 24 more blockchains...
View All Supported ChainsChoose your plan
Flexible pricing that scales with your needs
Try it out, no card required
- ✓ 100.0K credits (lifetime)
- ✓ 5 subscriptions
- ✓ 1 webhook
- ✓ Community support
For builders and growing projects
- ✓ 4.0M credits/month
- ✓ 50.0K subscriptions
- ✓ 50 webhooks
- ✓ Standard support
- ✓ 10-30% transfer fee discount
For production apps
- ✓ 10.1M credits/month
- ✓ 200.0K subscriptions
- ✓ 200 webhooks
- ✓ Priority support
- ✓ 30-50% transfer fee discount
High-volume platforms
- ✓ 30.6M credits/month
- ✓ 500K subscriptions
- ✓ 500 webhooks
- ✓ Dedicated support
- ✓ 50-70% transfer fee discount
Enterprise solutions
- ✓ Custom credits
- ✓ 1M+ subscriptions
- ✓ 1,000+ webhooks
- ✓ Enterprise support
- ✓ Up to 70% transfer fee discount
7-day free trial on all paid plans. View detailed pricing →
Get started in minutes
Create API key
Sign up free and generate your API key instantly.
Add a wallet
Subscribe to any address on any supported chain.
Receive events instantly
Your webhook fires the moment a transaction confirms.
Start monitoring in minutes
No infrastructure. No polling. Just real-time blockchain events.
Get API Key