Seal

Overview

Seal is a Model Context Protocol server that prevents agents from double-charging across processes by ensuring exactly one execution, confirmed by the provider. Any MCP-compatible AI assistant can call Seal's tools directly, letting the model decide when to use them during conversation or agent runs.

Seal runs locally via the Python package seal-kernel, installed with uvx seal-kernel. It communicates with your MCP client over stdio and requires no credentials to get started. The latest release is v0.3.1, with source code available at aurumflux20/seal on GitHub.

Seal belongs in the AI & Agents category and works with all MCP clients including Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed, and others. If you maintain Seal, claim this listing to verify ownership, earn a Verified badge, and keep the information up to date.

Installation

// claude_desktop_config.json
{
  "mcpServers": {
    "seal": {
      "command": "uvx",
      "args": [
        "seal-kernel"
      ]
    }
  }
}