🌉 Arbitrum Bridge MCP Server

The most advanced cross-chain bridge tooling for AI agents - featuring intent-based bridging, multi-protocol intelligence, and production-grade security.

🚀 Breakthrough Features

🧠 Intent-Based Bridging

• Natural Language Interface: "Bridge 100 USDC to Ethereum with low fees"
• Smart Protocol Selection: AI compares Across vs Stargate routes automatically
• Execution Planning: Complete transaction workflows with optimal parameters

⚡ Multi-Protocol Intelligence

• Across Protocol: Fast, secure bridging with UMA optimistic oracle
• Stargate V2: Credit-based bridging across 6+ chains
• Unified Interface: One API for multiple bridge protocols

🔒 Advanced Security

• Oracle Validation: Chainlink price feeds verify destination amounts
• Permit Integration: EIP-2612 & Permit2 for gasless approvals
• Slippage Protection: Dynamic slippage calculation with deadline enforcement
• MEV Protection: Built-in safeguards against front-running

📊 Production Metrics

• ✅ 18+ Production-Ready Tools
• ✅ 1,547 lines of TypeScript
• ✅ Comprehensive Testing Suite
• ✅ Professional Documentation
• ✅ Multiple Demo Interfaces

🛠 Quick Start

Prerequisites

• Node.js 18+
• pnpm or npm
• Arbitrum RPC access

Installation

# Clone the repository
git clone https://github.com/WuodOdhis/arbitrum-bridge-mcp-server.git
cd arbitrum-bridge-mcp-server

# Install dependencies
npm install

# Set up environment
cp .env.example .env
# Edit .env with your RPC URLs

# Build the project
npm run build

# Run the comprehensive demo
node showcase.js

MCP Inspector Integration

# Start MCP server with Inspector
npm run inspect:npx

🎯 Core Tools

Bridge Operations

• list_routes - Discover available bridge routes
• estimate_bridge_quote - Get bridge quotes with fees
• build_bridge_tx - Create unsigned bridge transactions

Stargate V2 Integration

• list_stargate_pools - Available liquidity pools
• get_stargate_credit - Check available bridge credits
• get_stargate_quote - Get Stargate-specific quotes
• build_stargate_bridge_tx - Create Stargate transactions

Intent-Based Bridging

• process_bridge_intent - Natural language → Optimized transactions

Security & Validation

• get_oracle_price - Chainlink oracle prices
• validate_dest_quote_against_oracle - Price validation
• compute_min_destination_amount - Slippage protection
• compute_deadline - Transaction deadline calculation

Approval Management

• build_approval_tx - Standard ERC-20 approvals
• build_eip2612_permit - Gasless permit signatures
• build_permit2_permit - Uniswap Permit2 integration

🧪 Testing & Demo

CLI Showcase (Recommended)

node showcase.js

Best for reviewers - Comprehensive demonstration of all features.

Interactive Web Demo

./start-web-demo.sh

Opens http://localhost:3002 with click-to-test interface.

MCP Inspector

npm run inspect:npx

Professional MCP client for detailed tool inspection.

🏗 Architecture

Transport Layer

• STDIO: Direct MCP client integration
• HTTP SSE: Web-based MCP clients
• Dual Mode: Both transports simultaneously

Security-First Design

• Zod Validation: Strict input/output schemas
• Oracle Integration: Real-time price validation
• Permit Support: Gasless approval workflows
• No Signing: Only unsigned transaction artifacts

Multi-Protocol Support

• Across Protocol: Optimistic oracle bridging
• Stargate V2: LayerZero-based credit system
• Extensible: Easy to add new protocols

🌐 Supported Networks

• Arbitrum One (Primary): Chain ID 42161
• Ethereum Mainnet: Chain ID 1
• Extensible: Framework supports additional chains

📈 Example Workflows

Intent-Based Bridge

// Natural language input
{
  "intent": "Bridge 100 USDC to Ethereum with low fees and high speed",
  "userAddress": "0x...",
  "priority": "speed"
}

// AI processes and returns optimized execution plan
{
  "recommendedProtocol": "across",
  "executionPlan": [...],
  "estimatedTime": "2-3 minutes",
  "totalFees": "$0.85"
}

Multi-Protocol Comparison

// Get quotes from both protocols
const acrossQuote = await getAcrossQuote({...});
const stargateQuote = await getStargateQuote({...});

// AI compares and recommends best option
const recommendation = await compareProtocols({
  across: acrossQuote,
  stargate: stargateQuote,
  priority: "cost" // or "speed"
});

🏆 Arbitrum Trailblazer Fund 2.0

This project represents a significant advancement in DeFi tooling:

• First Intent-Based Bridge Interface in the ecosystem
• Multi-Protocol Intelligence for optimal routing
• Production-Ready Security with oracle validation
• Comprehensive Documentation and testing
• Extensible Architecture for future protocols

📝 License

MIT License - See LICENSE file for details.

🤝 Contributing

Contributions welcome! Please read our contributing guidelines and submit pull requests.

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Built for the Arbitrum Ecosystem 🚀 Powered by AI Intelligence 🧠 Secured by Oracles 🔒