⚡
Simple Integration
One SDK call to send messages to any chain. No complex bridge integrations, no chain-specific logic.
ArbiLinkUniversal Cross-Chain Messaging
Build once on Arbitrum. Connect to everywhere.
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Install
sh
pnpm add @arbilink/sdk etherssh
npm install @arbilink/sdk etherssh
yarn add @arbilink/sdk etherssh
bun add @arbilink/sdk ethersBy the Numbers
~12s
Avg Delivery
95%
Cost Reduction
4
Chains Supported
3
Lines to Send
Quick Example
typescript
import { ArbiLink } from '@arbilink/sdk';
const arbiLink = new ArbiLink(signer);
const messageId = await arbiLink.sendMessage({
to: 11155111, // Ethereum Sepolia
target: '0xYourContract',
data: encodedCall,
});
// Real-time tracking
arbiLink.watchMessage(messageId, (msg) => {
console.log(msg.status); // 'pending' → 'relayed' → 'confirmed'
});Why ArbiLink?
❌ Without ArbiLink
- • Deploy same dApp on every chain
- • Manage N deployments & N audits
- • Complex bridge integrations per chain
- • $4.50+ per message
- • Weeks of cross-chain plumbing
- • Users fragmented across ecosystems
✅ With ArbiLink
- ✓ Build once on Arbitrum
- ✓ One codebase, one security audit
- ✓ One SDK call:
sendMessage() - ✓ ~$0.23 per message (95% cheaper)
- ✓ Integrate in hours, not weeks
- ✓ Reach all chains from one place
Start in 5 Minutes
⚡ Quick Start
Install the SDK and send your first cross-chain message
💻 Code Examples
Real-world NFT, token, and DAO examples ready to copy
📚 SDK Reference
Complete API with full TypeScript types
🗺️ Guides
Step-by-step walkthroughs for common patterns
How It Works
Your dApp → sendMessage() → MessageHub (Stylus/Rust on Arbitrum)
↓ Relayer picks up MessageSent event
↓ receiveMessage() on destination chain
↓ Target contract executed
↓ 5-min challenge window → confirmed ✓
↓ Relayer picks up MessageSent event
↓ receiveMessage() on destination chain
↓ Target contract executed
↓ 5-min challenge window → confirmed ✓
| Step | Action | Time |
|---|---|---|
| 1 | sendMessage() emits MessageSent on Arbitrum | Instant |
| 2 | Relayer detects event and signs proof | ~2s |
| 3 | receiveMessage() called on destination | ~5s |
| 4 | confirmDelivery() finalizes on Arbitrum hub | ~5s |
Built on Arbitrum Stylus
The MessageHub contract is written in Rust and compiled to WASM via Arbitrum Stylus:
| Metric | Solidity | ArbiLink (Stylus) |
|---|---|---|
| Gas per message | ~$4.50 | ~$0.23 |
| Safety | EVM | Memory-safe Rust |
| Contract size | Standard | Optimized WASM |