Ethereum & EVM Message Signing

About Ethereum & EVM Message Signing

Use Ethereum & EVM Message Signing with your agent

claude mcp add ethereum-evm-message-signing -- uvx signing-mcp-server

{
  "mcpServers": {
    "ethereum-evm-message-signing": {
      "command": "uvx",
      "args": [
        "signing-mcp-server"
      ]
    }
  }
}

Frequently asked questions

What is Ethereum & EVM Message Signing?

Ethereum & EVM Message Signing is an MCP (Model Context Protocol) server by nirholas in the Blockchain category. Sign Ethereum messages - EIP-191, EIP-712 typed data, Permit2, signature verification and recovery

How do I connect Ethereum & EVM Message Signing to Claude, Cursor, or another MCP client?

Install Ethereum & EVM Message Signing from its pypi package (signing-mcp-server) and register it under "mcpServers" in your client's MCP configuration — for example claude_desktop_config.json or Cursor's mcp.json — then restart the client.

Is Ethereum & EVM Message Signing open source?

Yes — the source code is public at github.com/nirholas/ethereum-wallet-toolkit, with 23 GitHub stars.

Can AI agents pay to use Ethereum & EVM Message Signing?

Not yet through Loomal — Ethereum & EVM Message Signing is listed as a free directory entry. If its maintainer verifies ownership, they can set per-call USDC pricing that agents pay over x402, with settlement on Base.