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.
🔀 This is a specialized fork of EmberAGI/arbitrum-vibekit - Enhanced with comprehensive Arbitrum bridge functionality, security improvements, and critical bug fixes.
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
Recent Fixes (v2.0.0)
Critical Issues Resolved
- ✅ L2 Bridge ABI Fix: Corrected
bridgeEthFromArbitrumto use proper L2 bridge contract - ✅ Contract Addresses: Replaced zero placeholders with official Arbitrum contracts
- ✅ Amount Format: Standardized all amounts to hex format for consistency
- ✅ Security Hardening: Added comprehensive security measures and validations
- ✅ Architecture: Complete refactor to EmberAGI-compatible standards
Verified Contract Addresses
- L1 Inbox:
0x4Dbd4fc535Ac27206064B68FfCf827b0A60BAB3f - L1 Gateway Router:
0x72Ce9c846789fdB6fC1f34aC4AD25Dd9ef7031ef - L2 Bridge:
0x8315177aB297bA92A06054cE80a67Ed4DBd7ed3a - L2 Gateway Router:
0x5288c571Fd7aD117beA99bF60FE0846C4E84F933
Note: All critical bugs have been resolved. See ISSUES_RESOLVED.md for detailed information about the fixes.
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 demo
npm run demo
MCP Inspector Integration
# Start MCP server with Inspector
npm run inspect
Core Tools
Bridge Operations
bridgeEthToArbitrum- Bridge ETH from Ethereum to ArbitrumbridgeEthFromArbitrum- Bridge ETH from Arbitrum to EthereumbridgeErc20ToArbitrum- Bridge ERC20 tokens from Ethereum to ArbitrumbridgeErc20FromArbitrum- Bridge ERC20 tokens from Arbitrum to Ethereum
Utility Tools
getBridgeStatus- Check transaction statusestimateBridgeGas- Estimate gas costslistAvailableRoutes- List available bridge routesprocessBridgeIntent- Process natural language bridge intents
Testing & Demo
CLI Demo
npm run demo
Comprehensive demonstration of all features.
MCP Inspector
npm run inspect
Professional MCP client for detailed tool inspection.
Architecture
EmberAGI Compatible Design
- Standardized Tools: Each tool follows EmberAGI pattern with
description,parameters, andexecute - Zod Validation: Strict input/output schemas with comprehensive validation
- TypeScript Support: Full type safety with exported interfaces
- Error Handling: Standardized error classes with clear error codes
Security-First Design
- Parameter Validation: All inputs validated with Zod schemas
- Address Validation: Case-insensitive Ethereum address validation
- Amount Validation: Positive integer validation in wei
- No Signing: Only unsigned transaction artifacts
Multi-Protocol Support
- Arbitrum Bridge: Native Arbitrum bridging
- 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
ETH Bridge
// Bridge ETH from Ethereum to Arbitrum
const result = await tools.bridgeEthToArbitrum.execute({
amount: '1000000000000000000', // 1 ETH in wei
recipient: '0x742d35Cc6634C0532925a3b8D4C9db96C4b4d8b6'
});
// Returns transaction data for signing
{
transaction: {
to: '0x8315177aB5bA0A56C4c4C4C4C4C4C4C4C4C4C4',
data: { abi: [...], functionName: 'depositEth', args: [...] },
value: '1000000000000000000'
},
estimatedGas: '200000',
chainId: 1,
description: 'Bridge 1000000000000000000 wei ETH to Arbitrum'
}
ERC20 Bridge
// Bridge USDC from Ethereum to Arbitrum
const result = await tools.bridgeErc20ToArbitrum.execute({
tokenAddress: '0xA0b86a33E6441b8c4C8C0C4C0C4C0C4C0C4C0C4',
amount: '1000000', // 1 USDC (6 decimals)
recipient: '0x742d35Cc6634C0532925a3b8D4C9db96C4b4d8b6'
});
EmberAGI Integration
This project is fully compatible with EmberAGI's on-chain action plugins:
- Standardized Interface: Each tool follows the exact EmberAGI pattern
- Zod Validation: Parameter schemas provide AI-understandable validation
- Type Safety: Full TypeScript support for development
- Error Handling: Consistent error patterns for AI systems
- Response Format: Standardized responses for AI processing
License
MIT License - See LICENSE file for details.
Contributing
Contributions welcome! Please read our contributing guidelines and submit pull requests.
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