Chain Signer

Overview

Chain Signer is a Model Context Protocol (MCP) server: Security suite for AI agents: flag drains, permit-phishing & risky actions before signing. As an MCP server it plugs straight into AI assistants, exposing its functionality as tools the model can invoke on your behalf.

It runs locally: the Python package chain-signer (via uvx) speaks MCP over stdio on your machine. No credentials are required — it works out of the box. The current release is v0.5.31, published under the MIT license, with source at Kevthetech143/chain-signer on GitHub.

You'll find Chain Signer in the Security category here on mcp.site; it connects to Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed, and any other MCP client — see the install snippets below. If you maintain Chain Signer for Kevthetech143, claim this listing to verify ownership, earn the Verified badge, and keep the details current.

Installation

// claude_desktop_config.json
{
  "mcpServers": {
    "chain_signer": {
      "command": "uvx",
      "args": [
        "chain-signer"
      ]
    }
  }
}