Mcp Signer

Overview

Mcp Signer is a Model Context Protocol (MCP) server: MCP server for local transaction signing on EVM, UTXO, Tron, and XRP — no API calls needed. Because it speaks the Model Context Protocol, AI assistants can use Mcp Signer as a set of callable tools instead of you copy-pasting between apps.

It runs locally: the npm package @cryptoapis-io/mcp-signer speaks MCP over stdio on your machine. No credentials are required — it works out of the box. The current release is v0.4.0, with source at CryptoAPIs-io/cryptoapis-mcp-signer on GitHub.

On mcp.site, Mcp Signer sits in the Finance category. Any MCP client can use it — Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed among them — via the install snippets below. If you maintain Mcp Signer for CryptoAPIs-io, claim this listing to verify ownership, earn the Verified badge, and keep the details current.

Installation

// claude_desktop_config.json
{
  "mcpServers": {
    "mcp_signer": {
      "command": "npx",
      "args": [
        "-y",
        "@cryptoapis-io/mcp-signer"
      ]
    }
  }
}