Get Started

Building a LangChain agent? The serve command provides zero-config MCP server startup -- no server script needed. See LangChain Integration.

Setup Wizard

The fastest way to get running. Clone the repository and let the wizard configure everything:

Terminal

git clone https://github.com/tetherto/wdk-mcp-toolkit.git
cd wdk-mcp-toolkit
npm install
npm run setup

The wizard will:

Prompt for your seed phrase (required)
Ask for optional API keys (WDK Indexer, MoonPay)
Generate .vscode/mcp.json with your credentials
Install required dependencies automatically

Once complete, open the project in VS Code, start the MCP server from .vscode/mcp.json, and open the chatbot with Cmd + Shift + I (or run Chat: Open Agent from the Command Palette on non-Mac).

Security - Your seed phrase is stored locally in .vscode/mcp.json, which is gitignored. Always use a dedicated development wallet with limited funds.

Manual Setup

If you prefer to set things up yourself or want to integrate the toolkit into an existing project:

Install the toolkit

Install the MCP Toolkit and the wallet modules you need:

Terminal

npm install @tetherto/wdk-mcp-toolkit @modelcontextprotocol/sdk

# Wallet modules (add any combination)
npm install @tetherto/wdk-wallet-evm    # Ethereum, Polygon, Arbitrum, etc.
npm install @tetherto/wdk-wallet-btc    # Bitcoin

Create your MCP server

Create index.js with a basic multi-chain server:

index.js

import { WdkMcpServer, CHAINS, WALLET_TOOLS, PRICING_TOOLS } from '@tetherto/wdk-mcp-toolkit'
import WalletManagerEvm from '@tetherto/wdk-wallet-evm'
import WalletManagerBtc from '@tetherto/wdk-wallet-btc'

const server = new WdkMcpServer('my-wallet-server', '1.0.0')

// 1. Enable WDK with your seed phrase
server.useWdk({ seed: process.env.WDK_SEED })

// 2. Register wallet modules
server.registerWallet('ethereum', WalletManagerEvm, {
  provider: 'https://eth.drpc.org'
})

server.registerWallet('bitcoin', WalletManagerBtc, {
  network: 'bitcoin',
  host: 'electrum.blockstream.info',
  port: 50001
})

// 3. Enable pricing
server.usePricing()

// 4. Register tools and start
server.registerTools([...WALLET_TOOLS, ...PRICING_TOOLS])

Connect your AI client

Add the MCP server to your AI tool's configuration:

Config path: .vscode/mcp.json (project-level)

.vscode/mcp.json

{
  "servers": {
    "wdk": {
      "type": "stdio",
      "command": "node",
      "args": ["index.js"],
      "env": {
        "WDK_SEED": "your twelve word seed phrase here"
      }
    }
  }
}

Then in VS Code:

Open .vscode/mcp.json and click Start above the server config
Open GitHub Copilot Chat and select Agent mode
Click Tools to verify the MCP tools are available

→ VS Code MCP documentation

Try it out

Ask your AI assistant:

What's my ethereum address?

Check my BTC balance

What's the current price of ETH in USD?

Send 10 USDt to 0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb7 on ethereum

Write operations (sending, swapping, bridging) will show a confirmation dialog before executing. You must explicitly approve each transaction.

Optional Capabilities

Add more capabilities by installing additional packages and enabling them on the server:

Do not enable Velora beta.8, USD₮0 bridge beta.10, or Aave beta.7 with EVM wallet beta.19. These adapters reject the provider on manager-derived accounts when the protocol is constructed, so the example below omits them. Check the installed wallet and adapter versions before registering them; see EVM provider compatibility. A separate direct account does not inherit the server's registered account controls.

Additional capabilities

import { INDEXER_TOOLS, FIAT_TOOLS } from '@tetherto/wdk-mcp-toolkit'
import MoonPayProtocol from '@tetherto/wdk-protocol-fiat-moonpay'

// Indexer - transaction history
server.useIndexer({ apiKey: process.env.WDK_INDEXER_API_KEY })

// Fiat protocol
server.registerProtocol('ethereum', 'moonpay', MoonPayProtocol, {
  apiKey: process.env.MOONPAY_API_KEY
})

// Register the corresponding tools
server.registerTools([
  ...INDEXER_TOOLS,
  ...FIAT_TOOLS
])

Environment Variables

Variable	Required	Description
`WDK_SEED`	Yes	BIP-39 seed phrase for wallet derivation
`WDK_INDEXER_API_KEY`	No	Enables `INDEXER_TOOLS` - get a key
`MOONPAY_API_KEY`	No	Enables `FIAT_TOOLS` - MoonPay Dashboard

Next Steps

Configuration - Wallets, tokens, protocols, custom tools, and security
API Reference - All 35 built-in MCP tools with parameters and schemas

Need Help?

Discord CommunityConnect with developers, ask questions, share your projects

Join Community

GitHub IssuesReport bugs, request features, and get technical help

Open an Issue

Email ContactFor sensitive or private matters, contact our team directly

Send an email

Get Started

On this page