Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type @ followed by the MCP server name and your instructions, e.g., "@PrusaLink MCP Check the current status and temperatures of my Prusa printer."
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
A Model Context Protocol server for PrusaLink — control and monitor a Prusa 3D printer (including multi-tool models like the XL 5T) directly from an AI assistant.
Talks to the printer's local HTTP API over Digest authentication. No cloud, no account, nothing leaves your network.
Tool | Description |
| Printer state, temperatures (with targets), job progress, axis position, speed/flow |
| Serial, hostname, nozzle info, MMU state |
| Current job: file, progress, time remaining |
| List files/folders on a storage ( |
| Start printing a file already on the printer |
| Pause the current print |
| Resume a paused print |
| Stop the current job |
| Camera snapshot (if a camera is attached) |
| Upload a |
Related MCP server: PrintVaultMCP
Credentials are read from an env-style file (never hardcoded):
# ~/.config/prusalink-mcp/prusa-env
PRUSA_HOST=192.168.1.100
PRUSA_USER=maker
PRUSA_PASS=your-printer-passwordThe path defaults to ~/.config/opencode/prusa-env; adjust ENV_FILE at the top of
prusalink_mcp.py if you store it elsewhere.
The printer password is the one displayed in PrusaLink → Settings → Password (or your Prusa Connect / local credentials).
python3 -m venv venv
./venv/bin/pip install "mcp<2"This server uses the FastMCP v1 API (
mcp.server.fastmcp). It is pinned tomcp<2because v2 renamesFastMCPtoMCPServer.
./venv/bin/python prusalink_mcp.py{
"mcpServers": {
"prusalink": {
"command": "/path/to/venv/bin/python",
"args": ["/path/to/prusalink_mcp.py"]
}
}
}Built against the official PrusaLink OpenAPI spec: github.com/prusa3d/Prusa-Link-Web.
Tested against a Prusa XL 5T running PrusaLink 2.0.
prusa_upload_and_print uses the upload-by-PUT endpoint
(PUT /api/v1/files/usb/{name}), which is how PrusaLink 2.0 accepts uploads.
Uploads can be slow: the upload request uses a longer timeout than the other calls.
Digest auth is handled transparently by a persistent opener.
MIT — see LICENSE.
This server cannot be deployed
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