Sigil
Local keystore enabling AI agents to sign EVM transactions without exposing private keys.
What it does
Local keystore enabling AI agents to sign EVM transactions without exposing private keys.
Sigil is a local keystore and MCP server that enables AI agents to sign Ethereum Virtual Machine transactions without the private key ever entering the language model's context window. Keys are encrypted at rest using XChaCha20-Poly1305, and a policy engine enforces signing rules including chain ID allowlists, destination restrictions, and per-transaction value caps. The daemon boots in a locked state and requires passphrase unlock via a separate CLI before signing operations are permitted.
Capabilities
Server
Quality
deterministic score 0.55 from registry signals: · indexed on pulsemcp · has source repo · 1 github stars · registry-generated description present