sigil
About
Local keystore + MCP server. Claude can sign EVM transactions but never sees the private key.
Use this server
Add it to your MCP client. The catalogue lists this config verbatim from its source — it does not run, download, or vouch for the server. Review the command before you run it.
Transportstdio (runs a local command)
Env vars
SIGIL_HOME SIGIL_CONTROL_SOCKClaude Code
claude mcp add --env SIGIL_HOME= --env SIGIL_CONTROL_SOCK= sigil -- npx sigild
Cursor
If the button doesn't open Cursor, use the JSON below — Cursor accepts the same mcpServers config.
VS Code
code --add-mcp '{"name":"sigil","command":"npx","args":["sigild"],"env":{"SIGIL_HOME":"","SIGIL_CONTROL_SOCK":""}}'
JSON
{
"mcpServers": {
"sigil": {
"command": "npx",
"args": [
"sigild"
],
"env": {
"SIGIL_HOME": "",
"SIGIL_CONTROL_SOCK": ""
}
}
}
}
Environment variables are listed by name only — fill in your own values. Entries never carry secrets.