AgentIndex icon
AgentIndex
Kiln logo
Kiln
★ 142
vs
heym logo
heym
★ 1.3k

Kiln vs heym

Kiln: Kiln lets AI agents design, queue, and execute physical manufacturing jobs on real 3D printers with zero human intervention. It exposes printer control through both a CLI and the Model Context Protocol (MCP), making any MCP-compatible agent a first-class operator of your print farm. Supports OctoPrint, Moonraker, Bambu, Prusa Link, and Elegoo printers, plus fulfillment services.; heym: Heym is an AI-native workflow automation platform built around LLMs, agents, and intelligent tooling. It provides a visual canvas to wire AI agents, vector stores, and integrations without coding. Heym supports multi-agent orchestration, RAG pipelines, MCP, and self-hosting with enterprise features included by default.

01

TL;DR

Kiln logo
KilnWorkflow Automation · ★ 142

Control your own 3D printers (OctoPrint, Moonraker, Bambu, Prusa Link, Elegoo)

Read Kiln full review →
heym logo
heymWorkflow Automation · ★ 1.3k

Build intelligent AI workflows for automation without coding

Read heym full review →
02

Side-by-Side Comparison

Field
Kiln logoKiln
heym logoheym
Category
Workflow Automation
Workflow Automation
Stars
★ 142
★ 1.3k
License
MIT
NOASSERTION
Install Command
git clone https://github.com/codeofaxel/Kiln.git ~/.kiln/src && ~/.kiln/src/install.sh
git clone https://github.com/heymrun/heym.git && cd heym && cp .env.example .env && ./run.sh
Updated
1d ago
1d ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
3d-printing, ai, ai-agents
ai, ai-agents, ai-agents-framework
03

Features

Kiln logoKiln
01One control plane, any printer — Manage a mixed fleet from one place.
02AI-native — 432 MCP tools built for AI agents.
03Prints don't fail silently — Cross-printer learning, automatic failure rerouting, preflight safety checks.
04Search → Slice → Print — Search and download 3D models, auto-slice, print from one conversation.
05Safety at scale — 28 per-printer safety profiles, G-code validation, heater watchdog, audit logs.
heym logoheym
01Visual workflow editor with 30+ node types
02AI Assistant that generates workflows from natural language
03Multi-agent orchestration with parallel sub-agents
04Built-in RAG pipeline with Qdrant vector store
05MCP support for both client and server
04

Use Cases

Kiln logoKiln
↳Control your own 3D printers (OctoPrint, Moonraker, Bambu, Prusa Link, Elegoo)
↳Outsource manufacturing via fulfillment centers like Craftcloud
↳Enable any MCP-compatible agent to manage your print farm
heym logoheym
↳Build intelligent AI workflows for automation without coding
↳Create multi-agent systems for complex task decomposition
↳Deploy customer-facing chatbots with retrieval-augmented generation
FAQ

FAQ

What is the difference between Kiln and heym?
Both Kiln and heym are in the Workflow Automation category. Kiln has 142 stars, while heym has 1.3k stars.
Which is better, Kiln or heym?
The best choice depends on your use case. Choose Kiln if Control your own 3D printers (OctoPrint, Moonraker, Bambu, Prusa Link, Elegoo), and heym if Build intelligent AI workflows for automation without coding.
Is Kiln free or open source?
Yes, Kiln is open source on GitHub (MIT).
Is heym free or open source?
Yes, heym is open source on GitHub (NOASSERTION).
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