API Locker

API Locker is an encrypted credential vault that allows developers and technical teams to securely store and manage LLM API keys, general service API keys, and OAuth credentials in one place. Through its Model Context Protocol (MCP) server, it exposes these credentials and related management tools directly to AI assistants and MCP-compatible clients (like Claude, Cursor, and others), allowing for runtime secret injection, key proxying, and full programmatic management/audit of secrets without raw credentials ever being exposed to disk or shell. It integrates with developer tools and AI agents, enabling centralized credential governance, quick sharing across machines, secure credential rotation, audit logging, and direct live management by AI agents and apps. It also supports importing from .env files and operates with a scoped, device-specific authentication model.