Sanction

Overview

Sanction is an MCP server that provides the wallet for AI agents — a unified system for mandate, budget, vault, and audit controls. It ensures counterparties verify first by embedding spending authorization, governance, and financial accountability directly into your agent's toolkit. When connected to your AI assistant, Sanction exposes its capabilities as tools the model can invoke, giving agents controlled access to resources and spend limits.

Sanction runs locally via the npm package sanction-mcp, which communicates over stdio. Installation is simple: npx -y sanction-mcp. You'll need to provide your SANCTION_API_KEY through environment variables to authenticate. The latest release is v0.9.0, and the full source code is available at ericlovold/sanction on GitHub.

Sanction belongs in the AI & Agents category and works with MCP clients including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed, and others. If you maintain this project, claim your listing on mcp.site to verify ownership and keep the information up to date.

Installation

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

Requires SANCTION_API_KEY