Kiln
Kiln is an MCP server, listed under mcp tooling. It reaches kiln. It needs KILN_AUTH_KEY, KILN_MCP_AUTH_TOKEN, KILN_OPENROUTER_KEY and KILN_PRINTER_API_KEY to authenticate. Its repository has 213 GitHub stars and is licensed under AGPL-3.0; we last read it on 2026-10-23.
Describe it or draw it — Kiln makes it real. The open-source MCP server for 3D printing: AI agents (Claude, Codex, Cursor, or any MCP client) design, generate, slice & print on Bambu Lab, Creality, Prusa, Elegoo, Klipper/Moonraker, OctoPrint, Duet/RepRapFirmware & any Marlin printer.
Install
Read from Kiln’s own README, close to verbatim -- not written by us, and not guessed.
pip install kiln3d
What it reaches, and what it needs
What it connects to
Unverified means a mention in the server’s own description, not a citation. A wrong claim here costs nothing to correct and nothing to trust yet.
Maintenance
Describe it or draw it — Kiln makes it real. The open-source MCP server for 3D printing: AI agents (ChatGPT, Claude, Codex, Cursor, Gemini, Grok, or any MCP client) design, generate, slice & print on Bambu Lab, Creality, Prusa, Elegoo, Klipper/Moonraker, OctoPrint, Duet/RepRapFirmware & any Marlin printer.
Kiln compared with similar servers
| Server | Reaches | Needs | Stars | Last update | Licence |
|---|---|---|---|---|---|
| Kiln (this page) | kiln | KILN_AUTH_KEY, KILN_MCP_AUTH_TOKEN, KILN_OPENROUTER_KEY, KILN_PRINTER_API_KEY | 213 | 2026-10-23 | AGPL-3.0 |
| tradingview-mcp | marketaux | MARKETAUX_API_TOKEN | 5,099 | 2026-10-21 | MIT |
| mcphub | — | ADMIN_PASSWORD | 2,580 | 2026-10-24 | Apache-2.0 |
| mcp-remote | — | AUTH_TOKEN, MCP_CLIENT_SECRET, MCP_REMOTE_CLIENT_SECRET | 1,652 | 2026-10-20 | MIT |
| mcp-searxng | — | None listed | 1,322 | 2026-10-20 | MIT |
| tuui | — | None listed | 1,159 | 2026-05-14 | Apache-2.0 |
Ranked by services in common with Kiln, then by stars. Figures are from each repository when we last read it.
Common questions about Kiln
- What does Kiln do?
- Describe it or draw it — Kiln makes it real. The open-source MCP server for 3D printing: AI agents (Claude, Codex, Cursor, or any MCP client) design, generate, slice & print on Bambu Lab, Creality, Prusa, Elegoo, Klipper/Moonraker, OctoPrint, Duet/RepRapFirmware & any Marlin printer.
- How do I install Kiln?
- Its own README gives this command: pip install kiln3d. Run it where your MCP client can launch the server, and check the README for any settings it asks for.
- What does Kiln connect to, and what does it need?
- It reaches kiln. The credentials we found in its source are KILN_AUTH_KEY, KILN_MCP_AUTH_TOKEN, KILN_OPENROUTER_KEY and KILN_PRINTER_API_KEY.
- Which AI clients can use Kiln?
- Its own description mentions Cursor. That is a mention in its description, not a test we ran.
- Is Kiln official and is it maintained?
- We found nothing naming it as a vendor’s official server. Its repository has 213 GitHub stars and its state in our directory is listed. Its last commit we recorded was on 2026-10-23.
- What licence does Kiln use?
- The repository declares the AGPL-3.0 licence.
More MCP servers for mcp tooling
- tradingview-mcp5,099 stars
- mcphub2,580 stars
- mcp-remote1,652 stars
- mcp-searxng1,322 stars
- tuui1,159 stars
- mcp-proxy741 stars