Kilntainers

by Kiln-AI

312 downloads

Not rated

GitHub

Other

About

Kilntainers is an MCP server that gives LLM agents isolated Linux sandboxes for executing shell commands.

Details

Author: Kiln-AI
Downloads: 312
Categories: Other

- Multiple backends: Docker, Podman, Modal, E2B, and WASM.
- Isolated per agent – each MCP connection gets its own sandbox.
- Ephemeral sandboxes – cleaned up automatically when the session ends.
- Secure design – agent communicates with sandbox, not inside it.
- Single MCP tool: sandbox_exec for running any command.
- Scalable from laptop to thousands of parallel cloud sandboxes.

Setting up with Highlight

This MCP is not yet compatible with Highlight’s one-click setup. However, you can still use it with Highlight by following these steps:

Download and install Highlight from highlightai.com/download
Navigate to the plugins tab and select "Add Custom Plugin"
Configure the plugin with the settings below

Plugin Name Kilntainers

Command (node, npx, python, etc.)

Please refer to the README for specific instructions on how to obtain API keys or other required environment variables.
Enable "Start Automatically" if you want the plugin to start when Highlight launches

Setting up with Cursor

Open Cursor's settings
Navigate to the MCP section
Click "Add new Global MCP server"
Copy and paste the configuration below based on your operating system

JSON

{
    "mcpServers": {
        "kilntainers": {
            "kilntainers": {
                "command": "kilntainers"
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "kilntainers": {
            "kilntainers": {
                "command": "kilntainers"
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "kilntainers": {
            "kilntainers": {
                "command": "kilntainers"
            }
        }
    }
}

Setting up with Claude Desktop

Open Claude Desktop's settings
Go to the Integrations tab
Click "Add MCP Server"
Use the configuration below based on your operating system

Note: Make sure Claude Desktop is running before attempting to connect.

JSON

{
    "mcpServers": {
        "kilntainers": {
            "kilntainers": {
                "command": "kilntainers"
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "kilntainers": {
            "kilntainers": {
                "command": "kilntainers"
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "kilntainers": {
            "kilntainers": {
                "command": "kilntainers"
            }
        }
    }
}

Setting up with Windsurf

Open Windsurf's preferences
Go to the Integrations section
Click "Add MCP Integration"
Use the configuration below based on your operating system

JSON

{
    "mcpServers": {
        "kilntainers": {
            "kilntainers": {
                "command": "kilntainers"
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "kilntainers": {
            "kilntainers": {
                "command": "kilntainers"
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "kilntainers": {
            "kilntainers": {
                "command": "kilntainers"
            }
        }
    }
}

Setting up with Cline

Open Cline's settings
Navigate to the Integrations section
Click "Add MCP Server"
Copy and paste the configuration below based on your operating system

Note: Make sure to restart Cline after adding the configuration.

JSON

{
    "mcpServers": {
        "kilntainers": {
            "kilntainers": {
                "command": "kilntainers"
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "kilntainers": {
            "kilntainers": {
                "command": "kilntainers"
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "kilntainers": {
            "kilntainers": {
                "command": "kilntainers"
            }
        }
    }
}

Setting up with Goose

Open Goose's preferences
Go to the Integrations tab
Select "MCP Servers"
Click "Add New Server"
Use the configuration below based on your operating system

JSON

{
    "mcpServers": {
        "kilntainers": {
            "kilntainers": {
                "command": "kilntainers"
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "kilntainers": {
            "kilntainers": {
                "command": "kilntainers"
            }
        }
    }
}

JSON

{
    "mcpServers": {
        "kilntainers": {
            "kilntainers": {
                "command": "kilntainers"
            }
        }
    }
}

From the repository

Install via uv tool install kilntainers (optionally with [wasm] for WASM backends). Run the server from CLI with kilntainers; by default it uses Docker and Debian slim. Add the server to an MCP client by specifying "command": "kilntainers" in the MCP configuration. The single MCP tool sandbox_exec lets the agent run any Linux command.

Claude Desktop / Cursor

Paste into your MCP client config file to install this server.

{
    "mcpServers": {
        "kilntainers": {
            "kilntainers": {
                "command": "kilntainers"
            }
        }
    }
}

McpServers

{
    "kilntainers": {
        "command": "kilntainers"
    }
}

Why Kilntainers?

Agents are already excellent at using terminals, and can save thousands of tokens by leveraging common Linux utilities like grep, find, jq, awk, etc. However giving an agent access to the host OS is a security nightmare, and running thousands of parallel agents on a service is painful. Kilntainers gives every agent its own isolated, ephemeral sandbox.

No reviews yet — be the first

Use Google, GitHub, or an email account so ratings stay tied to real people.

Email sign in

No reviews posted yet.

About

Details

Jump to

Setting up with Highlight

From the repository

Claude Desktop / Cursor

McpServers

Why Kilntainers?

Install

More like this

Sequential Thinking

Filesystem

EverArt

Google Drive

Reactive Resume

FastMCP v2 🚀