API Locker

Overview

API Locker is a Model Context Protocol server that provides an encrypted credential vault for managing LLM keys, service credentials, and OAuth tokens. As a 21-tool MCP server, it lets your AI agent securely access and manage authentication across multiple services through a single integrated interface.

The server runs locally on your machine via the npm package apilocker, communicating with MCP clients over stdio. Install it with npx -y apilocker. The latest release is v1.0.3, published under the MIT license with source code available at apilocker/apilocker on GitHub.

API Locker sits in the AI & Agents category and works with Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed, and other MCP-compatible clients. If you maintain API Locker, visit the listing to claim ownership, earn the Verified badge, and keep information up to date.

Installation

// claude_desktop_config.json
{
  "mcpServers": {
    "api_locker": {
      "command": "npx",
      "args": [
        "-y",
        "apilocker"
      ]
    }
  }
}