Trigger system-level focus sessions and website blocks instantly using natural language prompts within AI clients.
Enforce absolute network-level restrictions by directly editing local host configurations across all installed browsers.
Maintain task-aware filtering to block unrelated pages while permitting access to project-critical references.
Manage time-limited temporary unblocks and AI-managed exceptions without manual dashboard configurations.
Why it works
Leverages the open Model Context Protocol to transform distraction-blocking into an inline capability of AI assistants.
Bypasses fragile browser extensions by enforcing absolute system-level network blocks via local host files.
Eliminates administrative setup fatigue by removing bloated standalone dashboards and complex sliders.
Provides natural language flexibility to handle scheduling, temporary exceptions, and context-aware filtering seamlessly.
LockIn MCP is an innovative distraction-blocking tool designed specifically for the Model Context Protocol ecosystem. It allows users to trigger system-level focus sessions and manage internet blocks directly through their favorite AI assistant using natural language. The underlying engine directly modifies the machine's local hosts file to enforce a network-level boundary across all browsers. Developers, students, and professionals use it to eliminate digital distractions without bloated standalone dashboards.
Founded year:2026
Founder:Mil Hoornaert
Team size:1
Popularity:Thousands of active developer and knowledge worker users
HQ:Belgium
Status:Active
Funding status:Bootstrapped
Customer type:B2B
Pricing:Subscription
Tech stack:TypeScript, Node.js, Model Context Protocol, Hosts File API
Platform:Web • Mac • Windows • Linux
Integrations:Claude, ChatGPT, Model Context Protocol (MCP), Chrome, Safari, Firefox, Edge
What it does
Trigger system-level focus sessions and website blocks instantly using natural language prompts within AI clients.
Enforce absolute network-level restrictions by directly editing local host configurations across all installed browsers.
Maintain task-aware filtering to block unrelated pages while permitting access to project-critical references.
Manage time-limited temporary unblocks and AI-managed exceptions without manual dashboard configurations.
Who it's for
Software Developers
Students
Writers
Remote Workers
Why it works
Leverages the open Model Context Protocol to transform distraction-blocking into an inline capability of AI assistants.
Bypasses fragile browser extensions by enforcing absolute system-level network blocks via local host files.
Eliminates administrative setup fatigue by removing bloated standalone dashboards and complex sliders.
Provides natural language flexibility to handle scheduling, temporary exceptions, and context-aware filtering seamlessly.
Founder story
LockIn MCP was created in 2026 by Mil Hoornaert in Belgium to solve the frustration of complex, fiddly focus applications. Fed up with traditional blockers requiring tedious setup dashboards, the project was built to let users lock themselves out of distractions instantly via a single AI command.
Alternatives
Comparison overview
LockIn MCP integrates directly as an AI assistant tool call rather than requiring a standalone desktop control panel like Freedom or Cold Turkey.
It modifies system-level host files for network enforcement instead of relying on easily bypassed browser plugins.