Infrastructure · MCP
A place for your next idea.
A carrel is a quiet desk of your own. This one gives your project its own machines, connections and room to work. Describe the environment to your agent, then connect and start building.

A workspace with room for your own tools.
01
Describe the environment.
Ask for a single machine or a connected group. Carrel checks the plan against available resources and your quota. Your agent can include packages, setup commands and application checks when creating a VM.
Example request
Create an app and a database. Only the app should reach the database on port 5432. Publish the app over HTTPS.
See what will be created.
Review two machines, one database connection and one HTTPS publication. Planning checks quota and capacity without creating or reserving resources.
- app · Ubuntu VM
- db · Debian VM
- app → db · TCP 5432
- HTTPS → app
An illustrated workflow. Explore the steps above.

Separate spaces. Deliberate connections.
02
Connect what belongs together.
Keep a database private and give the app a public address. Declare which service can reach which port. Carrel sets up the connections and HTTPS routing; your agent verifies that the application responds.
The app accepts public traffic and can connect to the database on TCP port 5432.
HTTPS → App → Database · TCP 5432

A working environment, through each iteration.
03
Keep working. Keep a way back.
The environment stays with the project. Reconnect over SSH, adjust its resources, or save a disk snapshot before a change. When the work is finished, remove the environment and release its resources.
Pick up where you left off.
Ask for the machine's SSH connection details and return to your existing files and tools.

Get started
Bring your agent. Make some space.
Carrel is currently available to eligible WinLab members. Connect an MCP client, sign in with your WinLab account, then start a new session.
MCP endpoint
https://carrel.winlab.tw/mcpClaude Code
claude mcp add --scope user --transport http carrel https://carrel.winlab.tw/mcp
claude mcp login carrelCodex
codex mcp add carrel --url https://carrel.winlab.tw/mcp --oauth-client-registration dcr
codex mcp login carrel --oauth-client-registration dcrYour first request
Create a Debian development VM for my next project.
Your agent can use a saved public SSH key, or ask you for one.
