Ethereum & EVM Message Signing

Ethereum & EVM Message Signing is an MCP server for Sign Ethereum messages - EIP-191, EIP-712 typed data, Permit2, signature verification and recovery. It supports STDIO transport.

Use the generated config in Install. This server runs with uvx signing-mcp-server; add any required environment variables before starting your client.

Choose the Claude Desktop tab in Install and copy the config for uvx signing-mcp-server. Add required environment variables before starting Claude Desktop.

Choose the Claude Code tab in Install and copy the config for uvx signing-mcp-server. Add required environment variables before starting Claude Code.

Choose the Codex tab in Install and copy the config for uvx signing-mcp-server. Add required environment variables before starting Codex.

Choose the Cursor or VS Code tab in Install and copy the config for uvx signing-mcp-server. Add required environment variables before starting Cursor or VS Code.

Ethereum & EVM Message Signing uses STDIO transport. Use the package or command config in Install.

Ethereum & EVM Message Signing inventory is listed when the MCP endpoint exposes tools, resources, or prompts. Some servers require auth first.

Ethereum & EVM Message Signing does not advertise a verified auth requirement. If discovery fails, it may still need provider login, an API key, a bearer token, or a session header.