mcp-server

LeanCTX: Control AI Visibility

Name: LeanCTX: Control AI Visibility
Author: yvgude

Get token-optimized AI control with LeanCTX, for founders using AI agents in their startup.

3,237 stars299 forksRustQuality 8/10Updated 7/14/2026100% free · open source

What it does

LeanCTX is a context intelligence layer that controls what AI agents can see, remember, and save, optimizing token usage by 60-90%.

Install / run

Download the pre-compiled binary from the GitHub releases page or build from source using `cargo build --release`

When to use it

•When integrating multiple AI agents into a startup's workflow
•When sensitive data needs to be protected from unauthorized AI access
•When optimizing token usage is crucial for cost reduction

Quick start

1Run the LeanCTX server using `./target/release/lean-ctx`
2Configure the `lean-ctx.conf` file to define allowed AI agent actions and data access
3Integrate LeanCTX with AI agents using the provided API, such as setting the `LEAN_CTX_URL` environment variable
4Test the setup using a sample AI agent and verify token optimization
5Monitor and adjust the configuration as needed based on LeanCTX logs and performance metrics

Ready-to-paste prompt

Run `./target/release/lean-ctx --config lean-ctx.conf --agent my_agent` to start the LeanCTX server with a custom configuration for a specific AI agent

Heads up: Ensure the `RUST_LOG` environment variable is set to the desired log level (e.g., `RUST_LOG=info`) to avoid silent failures or unexpected behavior

Saves to your device