I was up until 4am last night shipping v0.1.0. Crashed for a few hours, shipped Kiln to the world, and noticed an email from the Craftcloud team answering every question I'd sent them. So I sat back down and finished the Craftcloud integration this evening.

Kiln now supports the outsourcing of 3D printing through Craftcloud's network of 150+ print shops across FDM, SLA, SLS, MJF, and metal (DMLS). Your AI agent can get quotes, compare materials, place orders for remote fulfillment, and track shipments through the same MCP tools and CLI commands used for local printing. No printer? No problem. This enables users and agents without access to 3D printers and/or materials to easily 3D print whatever they desire, and have the printed items shipped to them.

What's different about this integration

Most API integrations require you to get credentials before you can do anything. Craftcloud's public endpoints work without an API key — meaning you can start getting quotes and placing orders right now, no onboarding required. If you want orders tied to a Craftcloud account, you can set an API key, but it's optional.

We also added WebSocket support for price polling. Craftcloud's recommendation is to use wss:// connections with msgpack-encoded payloads instead of polling their REST endpoint. Kiln supports both — set KILN_CRAFTCLOUD_USE_WEBSOCKET=1 to use the WebSocket path, or leave it off to use standard HTTP polling. Either way, pricing updates stream in as vendors respond.

How it works

The Craftcloud v5 flow is: upload your model, wait for it to parse, request prices from their vendor network, pick a quote and shipping option, create a cart, and place the order. Kiln handles all of this behind a single fulfillment_quote / fulfillment_order interface. Your agent doesn't need to know the Craftcloud API — it just says "get me a quote for this STL in SLS Nylon" and Kiln handles the rest.

The full adapter covers:

Model upload and async parsing (POST /v5/model)
Price polling via HTTP or WebSocket (GET /v5/price/{id} or wss://)
Material catalog with 6 technologies and dozens of materials/finishes
Cart creation and order placement with full address handling
Order status tracking and cancellation
81 tests covering the complete flow

Quick start

If you already have Kiln installed, Craftcloud works out of the box:

# No API key needed — just set the provider
export KILN_FULFILLMENT_PROVIDER=craftcloud

# Get a quote
kiln order quote model.stl --material "SLS Nylon PA12"

# Or let your agent handle it via MCP
# → fulfillment_quote, fulfillment_order, fulfillment_materials

Thanks to the Craftcloud team

Shoutout to the Craftcloud team for being quick and helpful. We sent them a follow-up email with technical questions about their v5 API and got a clear, detailed response that let us finish the integration the same day. That's the kind of responsiveness that makes building on someone's platform actually enjoyable.

More fulfillment providers as integrations launch.

Get started: pip install kiln3d — GitHub — kiln3d.com