Revolutionizing decentralized trading with sub-millisecond latency and zero gas fees on Rain-powered Orbit L3
Current DEX architectures suffer from fundamental limitations that prevent them from competing with centralized exchanges: high gas costs, slow execution times, and limited throughput.
Every trade on L1/L2 incurs significant gas fees, making small trades economically unviable and limiting market maker participation.
Block times measured in seconds create latency that professional traders cannot accept, driving liquidity to CEXs.
Current L2s can't handle the transaction volume required for competitive order book exchanges with real-time price discovery.
A dedicated Arbitrum Orbit L3 chain running Rain Protocol's order book infrastructure delivers CEX-like performance with full decentralization and self-custody.
Purpose-built smart contract infrastructure for order books with gas-optimized matching, partial fills, and advanced order types.
Dedicated application-specific chain with custom gas token, optimized VM settings, and direct Arbitrum One settlement.
REST/WebSocket APIs, FIX protocol support, and institutional-grade order management for market makers and trading firms.
Arbitrum One provides security and final settlement with Ethereum L1 inheritance
Custom Arbitrum Nitro stack with Rain-optimized gas pricing and block times (~250ms)
Order book engine, matching algorithm, vault system, and MEV protection
Web UI, mobile apps, REST APIs, WebSocket feeds, and FIX gateway
Native RAIN token for gas eliminates ETH bridging friction and enables fee redistribution to stakers
Trades execute instantly on L3, batch-settle to Arbitrum One every ~15 minutes
Encrypted mempool, batch auctions, and time-weighted matching prevent frontrunning
One-time: $50,000 - $100,000
Deployment, configuration, initial validator set, bridge contracts, monitoring infrastructure
Recurring: $5,000 - $15,000
Validator nodes, RPC infrastructure, batch posting to L2, DevOps, monitoring, security audits
Variable: ~$1,000 - $3,000/month
Gas for batch commitments to Arbitrum One (scales with transaction volume)
0.02% - 0.10% per trade (competitive with CEX pricing)
All L3 gas fees collected in RAIN token, burned or redistributed
Rebates for liquidity providers, premium API tiers for HFT firms
✓ Orbit L3 chain deployment on testnet
✓ Rain Protocol contract migration and optimization
✓ Basic trading UI and REST API
✓ Security audit #1
→ Mainnet deployment with whitelisted traders
→ 3-5 trading pairs (ETH, USDC, USDT, ARB, RAIN)
→ WebSocket real-time feeds
→ Mobile apps (iOS/Android)
→ Open access for all users
→ 20+ trading pairs
→ FIX protocol gateway for institutional traders
→ Liquidity mining program
→ Perpetual futures and options
→ Cross-chain bridges (Ethereum, Base, Polygon)
→ Market maker partnerships
→ 10,000+ TPS sustained throughput
This project combines Rain Protocol's battle-tested order book infrastructure with Arbitrum's industry-leading L2 technology and Orbit's flexibility to create the first truly decentralized exchange capable of competing with centralized platforms.
Provides the core order book engine, smart contract infrastructure, and trading logic that powers the exchange
Delivers the L3 blockchain infrastructure, security model, and settlement layer for high-performance execution
Both teams are committed to making DeFi competitive with CeFi through radical performance improvements