TL;DR
Sigil is a Model Context Protocol (MCP) server. Local keystore + MCP server. Claude can sign EVM transactions but never sees the private key. Install with: npx -y sigild. Source: https://github.com/cdrn/sigil. It speaks the Model Context Protocol and works with any compatible client (Claude, Cursor, Cline, Windsurf, Warp and more).
Sigil
Local keystore + MCP server. Claude can sign EVM transactions but never sees the private key.
Install Command
npx -y sigildFrequently Asked Questions
Sigil is a Model Context Protocol server that Local keystore + MCP server. Claude can sign EVM transactions but never sees the private key.
You can install it by running the install command: `npx -y sigild`. It then becomes available to any MCP-compatible client such as Claude, Cursor, Cline, Windsurf.
The Sigil MCP Server is compatible with any client that speaks the Model Context Protocol — including Claude, Cursor, Cline, Windsurf.
Check the project license on its repository before use.
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Details
- Agent Rank
- 32.7
- License
- Last Updated
- Aug 12, 2026
- Languages
- TypeScript
Client Compatibility
Speaks the Model Context Protocol — works with any compatible client.