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Kiln

Kiln is an open-source Python MCP server that exposes 3D-printing workflows to compatible AI clients. It can support model design or generation, slicing, sending jobs to printers, and monitoring progress and cameras, using documented printer connection routes such as OctoPrint, Moonraker/Klipper, PrusaLink and direct USB.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

Kiln — OpenViST project profile in MCP & Tooling.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use Kiln when you want an MCP-capable AI client to help create, slice, submit or monitor a 3D-print job and your printer has a documented connection route.

Who it is for

  • Makers who want to create and submit 3D-print jobs through a compatible AI client.
  • Developers configuring MCP tools for printer workflows.
  • Users managing supported printers through documented network or USB connection routes.

Documented uses

  • Turn a described part or design into a printable model and slice it.
  • Send a print job to a supported printer through an AI client.
  • Check printer and job progress, including camera monitoring.
  • Connect an AI client to printer workflows through MCP.
Before you choose

Requirements & limits

The repository documents a standard setup that includes `kiln signin` and a separate manual MCP configuration that does not require sign-in. Its Claude Desktop bundle route uses `uv` and requires terms acceptance.

  • Confirm that your AI client supports MCP; automatic setup is documented for Claude Desktop, Claude Code and Codex.
  • Check that the printer and connection route fit the listed ecosystems and interfaces, including OctoPrint, Moonraker/Klipper, PrusaLink or direct USB.
  • The repository identifies Python and an AGPL-3.0 license; the Claude Desktop bundle has a separate uv-based setup path.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Connect Kiln to an MCP client

Install Kiln and connect it to a supported AI client using the documented command-line setup.

Before you start

  • Python package installation with pip
  • Claude Desktop, Claude Code, Codex, or another MCP-capable client
  • For the standard setup path, a Kiln account

Steps

  1. Install the package with the command below.

    Documented command
    pip install kiln3d

  2. Run kiln signin to create or access an account, then run kiln install-mcp to connect Kiln to supported AI apps.

  3. Restart the AI app so it can use Kiln. For another MCP client, use kiln install-mcp --print or enter the documented manual MCP configuration.

Expected outcome

The MCP client is configured to access Kiln's 3D-printing tools.

Guide limitations

  • The documented automatic setup covers Claude Desktop, Claude Code and Codex; other clients require printed or manual MCP configuration.
  • The repository's separate Claude Desktop bundle path requires uv and acceptance of Kiln's terms.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
Active
Sources checked
13 October 2026
Original website title
codeofaxel/Kiln · Official homepage title · retained in its source language
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