Ethereum Wallet (EVM)

Perform EVM crypto wallet operations using ethers.js v5. Supports a private key environment variable for wallet operations.

This repository contains a Model Context Protocol (MCP) server that provides Claude with access to Ethereum and EVM-compatible blockchain operations via ethers.js v5. The server enables Claude to perform operations like creating wallets, checking balances, sending transactions, and interacting with smart contracts on EVM-compatible blockchains.

The MCP server exposes the following tools to Claude:

- wallet_create_random: Create a new wallet with a random private key
- wallet_from_private_key: Create a wallet from a private key
- wallet_from_mnemonic: Create a wallet from a mnemonic phrase
- wallet_from_encrypted_json: Create a wallet by decrypting an encrypted JSON wallet
- wallet_encrypt: Encrypt a wallet with a password

- wallet_get_address: Get the wallet address
- wallet_get_public_key: Get the wallet public key
- wallet_get_private_key: Get the wallet private key (with appropriate security warnings)
- wallet_get_mnemonic: Get the wallet mnemonic phrase (if available)

- wallet_get_balance: Get the balance of the wallet
- wallet_get_chain_id: Get the chain ID the wallet is connected to
- wallet_get_gas_price: Get the current gas price
- wallet_get_transaction_count: Get the number of transactions sent from this account (nonce)
- wallet_call: Call a contract method without sending a transaction

- wallet_send_transaction: Send a transaction
- wallet_sign_transaction: Sign a transaction without sending it
- wallet_populate_transaction: Populate a transaction with missing fields

- wallet_sign_message: Sign a message
- wallet_sign_typed_data: Sign typed data (EIP-712)
- wallet_verify_message: Verify a signed message
- wallet_verify_typed_data: Verify signed typed data

- provider_get_block: Get a block by number or hash
- provider_get_transaction: Get a transaction by hash
- provider_get_transaction_receipt: Get a transaction receipt
- provider_get_code: Get the code at an address
- provider_get_storage_at: Get the storage at a position for an address
- provider_estimate_gas: Estimate the gas required for a transaction
- provider_get_logs: Get logs that match a filter
- provider_get_ens_resolver: Get the ENS resolver for a name
- provider_lookup_address: Lookup the ENS name for an address
- provider_resolve_name: Resolve an ENS name to an address

- network_get_network: Get the current network information
- network_get_block_number: Get the current block number
- network_get_fee_data: Get the current fee data (base fee, max priority fee, etc.)

- Node.js (v16 or higher)
- Claude Desktop application

You can run the MCP server directly without installation using npx:

npx @mcp-dockmaster/mcp-cryptowallet-evm

This will download and execute the server directly from npm.

git clone https://github.com/dcSpark/mcp-cryptowallet-evm.git cd mcp-cryptowallet-evm

The MCP server supports the following environment variables:

- PRIVATE_KEY: Optional private key to use for wallet operations when no wallet is explicitly provided

To configure Claude Desktop to use this MCP server:

Navigate to the Claude Desktop configuration file:

- macOS:~/Library/Application Support/Claude/claude_desktop_config.json
- Windows:%APPDATA%\Claude\claude_desktop_config.json
- Linux:~/.config/Claude/claude_desktop_config.json

{ "mcpServers": { "mcp-cryptowallet-evm": { "command": "npx", "args": [ "@mcp-dockmaster/mcp-cryptowallet-evm" ] } } }

Alternatively, if you installed the package locally:

{ "mcpServers": { "mcp-cryptowallet-evm": { "command": "node", "args": [ "/path/to/your/mcp-cryptowallet-evm/build/index.js" ] } } }

Once configured, restart Claude Desktop. Claude will now have access to the Ethereum and EVM-compatible blockchain tools. You can ask Claude to:

Can you create a new Ethereum wallet for me?

What's the balance of the Ethereum wallet address 0x742d35Cc6634C0532925a3b844Bc454e4438f44e?

Can you help me send 0.1 ETH to 0x742d35Cc6634C0532925a3b844Bc454e4438f44e?

Claude will use the MCP server to interact with the Ethereum blockchain directly.
- Define the tool insrc/tools.ts
- Create a handler function in the appropriate handler file
- Add the handler to thehandlersobject insrc/tools.ts

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