Insumer

Overview

Insumer is an MCP server that brings read-first blockchain verification to your AI assistant. It provides ECDSA-signed boolean checks across 38 different blockchain networks through 27 dedicated tools, letting Claude, Cursor, and other AI models query and verify blockchain data directly.

Run Insumer locally using npx -y mcp-server-insumer. It communicates with your AI client over standard input and output, requiring only the INSUMER_API_KEY environment variable to authenticate with the service. Version 1.13.0 is available now under MIT license, with full source code at douglasborthwick-crypto/mcp-server-insumer on GitHub.

Insumer belongs in the Finance category on mcp.site and integrates seamlessly with Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed, and other MCP-compatible clients. If you maintain this server, claim your listing here to verify ownership and keep information accurate.

Installation

// claude_desktop_config.json
{
  "mcpServers": {
    "insumer": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-server-insumer"
      ],
      "env": {
        "INSUMER_API_KEY": "<insumer-api-key>"
      }
    }
  }
}

Requires INSUMER_API_KEY