MCP EVM Signer

@zhangzhongnan928

Repository

Basic information

About MCP EVM Signer

MCP server for managing EVM keys and deploying smart contracts via Infura

#mcp-evm-signer#ethereum #smart-contracts

MCP EVM Signer config

No standard config provided

This server doesn't expose a parseable MCP config block in its README. See the repository for install instructions.

Repository

MCP EVM Signer tools

Tool list not available yet

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Overview

What is MCP EVM Signer?

MCP EVM Signer is a Model Context Protocol (MCP) server for securely managing Ethereum private keys and deploying smart contracts via Infura. It enables Claude for Desktop and other MCP clients to interact with EVM‑compatible blockchains.

How to use MCP EVM Signer?

Clone the repository, install dependencies (npm install), build (npm run build), and configure a .env file with your Infura API key. Then add the server to your Claude for Desktop configuration under mcpServers with the command node pointing to the built build/index.js and required environment variables (INFURA_API_KEY, DEFAULT_NETWORK, ENCRYPT_KEYS, KEY_PASSWORD). Restart Claude for Desktop to use the tools.

Key features of MCP EVM Signer

Securely store and manage Ethereum private keys locally
Connect to Infura for blockchain interactions
Deploy smart contracts from compiled ABIs and bytecode
Sign and send transactions
View account balances and transaction history
Query blockchain data and interact with deployed contracts

Use cases of MCP EVM Signer

Create a new Ethereum wallet through Claude
Check the ETH balance of any address on a specified network
Deploy an ERC‑20 token contract using ABI and bytecode
Send ETH to another address
Call read‑only or state‑modifying contract methods

Frequently asked questions

What are the prerequisites for running MCP EVM Signer?

Node.js v16 or higher, an Infura account with an API key, and the Claude for Desktop app installed.

Where are private keys stored and are they encrypted?

Private keys are stored locally on your machine. They can be encrypted with a password by setting `ENCRYPT_KEYS: "true"` and providing a `KEY_PASSWORD` in the configuration.

Can I use a mainnet network?

Yes, but the README recommends using test networks like Sepolia or Goerli when getting started. You can set the `DEFAULT_NETWORK` environment variable to any supported EVM network.

What tools does MCP EVM Signer expose?

Wallet management tools (`create-wallet`, `import-wallet`, `list-wallets`), blockchain operations (`check-balance`, `get-transactions`, `send-transaction`), and smart contract tools (`deploy-contract`, `call-contract`, `execute-contract`).

How do I integrate MCP EVM Signer with Claude for Desktop?

Add the server configuration to Claude’s `claude_desktop_config.json` under `mcpServers`, specifying the command, path to the built index.js, and environment variables. Restart Claude to enable the tools.

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