Supercharge your LLMs

Connect AI assistants to Sei blockchain with natural language commands for token transfers, smart contract interactions and deployments, and more.

Perfect For

Developers, Vibe Coders, DeFi users, NFT collectors, and anyone wanting to interact with Sei through natural language interfaces.

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Quick Start

Add the Sei MCP Server to your AI assistant with this configuration:

{
  "mcpServers": {
    "sei": {
      "command": "npx",
      "args": ["@sei-js/mcp-server"],
      "env": {
        "PRIVATE_KEY": "your_private_key_here"
      }
    }
  }
}

Complete Setup Guide

Follow our step-by-step installation guide for Claude Desktop, Cursor, Windsurf, and custom integrations.

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What is MCP?

The Model Context Protocol is an open standard that connects AI systems with custom prompts, tools and data sources (context). It enables:

  • Real-time blockchain data access - Get current balances, transaction history, and network status directly from Sei
  • Full execution and write operations - Deploy contracts, execute transactions, and interact with smart contracts
  • Up-to-date documentation access - Search and understand the latest Sei documentation and guides
  • Specialized blockchain capabilities - Access Sei-specific features like precompiles and native token operations

The Sei MCP Server leverages this protocol to bring comprehensive blockchain functionality directly to your AI assistant, enabling natural language interactions with the Sei network.

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Why Use Sei MCP Server?

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Example Queries

"How do I query staking my delegations using Viem?"
"Generate a wallet connection component using Sei Global Wallet"
"Help me set up a new Sei project with the latest patterns"

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Code Generation

The AI generates accurate, production-ready code using official @sei-js patterns:

  • Uses correct package imports and APIs
  • Follows documented best practices
  • Includes proper error handling
  • References current version patterns

The Sei MCP Server is actively developed with new features added regularly. Current version supports core blockchain operations with advanced DeFi integrations planned.