LockIn MCP - 2026 Pricing, Features, Reviews & Alternatives

LockIn MCP is a distraction blocking productivity application that integrates with artificial intelligence platforms to automate focus management on desktop operating systems. The application functions as a system level website blocker that connects to AI assistants such as Claude, ChatGPT, Perplexity, Gemini, and Poke through conversational prompts. It is designed for knowledge workers, remote professionals, and individuals requiring sustained concentration on computers running macOS, Linux, or Windows.

The product implements a multi layered blocking architecture at both system and browser levels. At the system level, LockIn MCP modifies the hosts file on the computer to block specific websites across all browsers simultaneously. A background service preserves block persistence after system restarts and manages timers for temporary unblocking requests. A browser extension for Chrome assesses each page against the active focus task to permit work related sites and block unrelated content. Distraction attempts are logged on a dashboard without capturing full browsing history.

LockIn MCP integrates with multiple third party AI tools through the Model Context Protocol. Configured AI assistants can issue blocking commands and manage focus sessions using natural language prompts. Integrated platforms include the desktop and web versions of Claude, ChatGPT, Perplexity, Gemini, and Poke. The browser extension operates independently while coordinating with the blocking system to enforce contextual filtering. The solution does not require custom integration or API development because standardized MCP connections are used. The system architecture maintains website blocks even when AI connections are momentarily unavailable.

The installation process involves running a terminal command, selecting sites to block, and configuring AI connections. Setup completes in under a minute without disrupting existing workflows. The persistent background service and Model Context Protocol connections remain active after system restarts to ensure uninterrupted focus enforcement.