Pricing
Start free. Scale to a factory.
Kiln is open source — local printing is free forever. Paid tiers add power for one maker, then a team that sells, then proof for procurement. In that order.
Free
Everything an AI agent needs to run one printer.
Install with pip install kiln3d
- ✓ Text, sketch, or CAD file in — validated, printable model out
- ✓ Unlimited local printing on 1 printer
- ✓ Printability check before filament burns
- ✓ 38 materials · 69 brand filament profiles · 18 product templates
- ✓ 3 decorations or textures a month — photo, text, SVG, patterns
- ✓ 10-job queue · 10-part assemblies
- ✓ 903 MCP capabilities · 235 CLI commands
- ✓ Community support
Pro
For makers who print daily — and hate reprinting.
Already installed? Run kiln license activate <key>
Everything in Free, plus
- ✓ Unlimited queue, decorations, textures & assembly parts
- ✓ Git for 3D — branch, merge & sign tamper-evident releases
- ✓ Autonomous failure recovery & print resume
- ✓ Mid-print edits — decorate, add features, swap material
- ✓ Calibration that learns your printer, print after print
- ✓ Warnings that ship their fix — design and slicer
- ✓ Private cloud sync · REST API server
- ✓ Personal projects only — selling starts at Business
Business
Sell what you print — with the workflow of a real shop.
Already installed? Run kiln license activate <key>
Everything in Pro, plus
- ✓ License to sell — Etsy, Shopify, custom orders, client work
- ✓ 3 printers + 3 seats included grow to 50 printers ($15/mo each) · 10 seats ($50/mo each)
- ✓ Fleet management with cross-printer learning
- ✓ Team pull requests & approval gates on designs
- ✓ Assembly manuals + BOM — co-branded, multilingual PDFs
- ✓ QR codes · unlimited fulfillment orders
- ✓ Customer drawings in — can we make it, how many will pass, what to quote
- ✓ Production drawings out — dimensioned sheets that state the size that actually prints
- ✓ Material rule checks — food-contact, REACH, RoHS, flame-retardant · datasheet import
- ✓ Priority support · webhooks · custom safety profiles
Enterprise
Compliance-grade proof for regulated production.
Prefer email? adam@kiln3d.com
Everything in Business, plus
- ✓ SSO (SAML / OIDC) + SCIM provisioning
- ✓ Named-approver e-signatures on releases — 21 CFR Part 11 / AS9100 / ISO 13485-grade sign-off
- ✓ Role-based access · full audit trail · lockable safety profiles
- ✓ Safety-critical exposure verdicts — concentrated acids, caustics, food contact
- ✓ AS9102 first-article reports drafted from your own records
- ✓ On-prem or VPC deployment, founder-led rollout
- ✓ Security review pack under NDA — SOC 2 readiness (in progress), CAIQ & SIG Lite
- ✓ 99.9% uptime SLA · dedicated support, sub-24h
- ✓ Unlimited seats · fleets past 50 printers
Trust
Built to pass a security review.
The parts your security team will ask about — shipped, not promised. On every plan, including Free.
Signed supply chain
Every release ships Sigstore-signed builds and SLSA build provenance, attested in a public transparency log. Two commands prove your download came from our CI, from a commit you can read — no key to trust, nothing we can rewrite after the fact. Each release also publishes a full ingredients list — every third-party library inside Kiln, with exact versions, in both CycloneDX and SPDX — so your scanners can check the whole stack, not just our code.
Check your download is genuine →Spend caps on every account
Outsourced manufacturing orders are capped by default — $500 per order, $2,000 a month — on every plan, Free included. Raising a cap takes a code from your authenticator app, and every change is audit-logged and reversible by email for 24 hours. Your agent can’t outspend your mandate.
Open source where it counts
The engine that touches your printers is AGPL-3.0 on GitHub — auditable line by line. Paid tiers add the hosted workflow around it, never a black box between you and your machine.
Read the source →Compare
What each tier unlocks
What each upgrade adds. Nothing you have today ever goes away.
| Capability | Free | Pro | Business | Enterprise |
|---|---|---|---|---|
| Make & iterate | ||||
| Decorations & textures — photo, text, SVG, procedural patterns | 3 / month, shared allowance | Unlimited — incl. custom image textures | Unlimited | Unlimited |
| QR code decorations | — | — | ✓ | ✓ |
| Multi-part assemblies | 10 parts | Unlimited | Unlimited | Unlimited |
| CAD file import — STEP in, colours and part names kept | ✓ | ✓ | ✓ | ✓ |
| CAD file export — STEP out, one exact solid, never a renamed mesh | ✓ | ✓ | ✓ | ✓ |
| Kits from multi-part models — biggest printable size, fit proof, overlap verdicts | ✓ | + Rated joints, built into the parts | + Build order & illustrated booklet | ✓ |
| Will it hold? — load limits, where it fails, what to reinforce | Basic load estimate | + Design to a target load · bracing plan · reinforcement picks | ✓ | ✓ |
| Versioned mechanical features — chamfers, fillets, pockets, bosses, custom OpenSCAD | — | ✓ | ✓ | ✓ |
| Mid-print modification — decorate, add features, swap material on a live job | — | ✓ | ✓ | ✓ |
| Version & prove | ||||
| Design history | Linear | Branch · merge · cherry-pick | ✓ | ✓ |
| Three-way mesh merge across design branches | — | ✓ | ✓ | ✓ |
| Signed, tamper-evident releases — prove a design hasn’t changed since sign-off | — | ✓ | ✓ | ✓ |
| Versioned decoration presets — brand-asset library with signed releases | — | ✓ | ✓ | ✓ |
| Design provenance & regression detection | — | ✓ | ✓ | ✓ |
| Part Passport — everything about a design in one call | — | ✓ | ✓ | ✓ |
| Save designs to the cloud | 1 — with a free account | Unlimited | ✓ | ✓ |
| Cloud sync | — | Solo — private to your account | + Cross-operator sharing | ✓ |
| Team pull requests & approval gates on protected branches | — | — | ✓ | ✓ |
| Cross-organization artifact transfer with audit trail | — | — | ✓ | ✓ |
| Named-approver e-signatures — role and decision inside the signature | — | — | — | ✓ |
| Per-component reviewers + step-up re-auth before production signing | — | — | — | ✓ |
| Print & recover | ||||
| Printers | 1 | 1 | 3 included · $15/mo each to 50 | Large fleets · custom |
| Job queue | 10 jobs | Unlimited | Unlimited | Unlimited |
| Printability analysis before filament burns | Safe defaults | Tuned to your material + printer | ✓ | ✓ |
| Every warning ships its fix — design fix and slicer fix | — | ✓ | ✓ | ✓ |
| Autonomous failure recovery & print resume | — | ✓ | ✓ | ✓ |
| Calibration that learns your printer, print after print | — | ✓ | + Cross-printer learning | ✓ |
| Community print intelligence — recommendations backed by what actually worked on machines like yours | — | ✓ | ✓ | ✓ |
| Won’t-fit fixes for oversize parts — split into pieces that fit, every cut sealed | Splits it free | + Designs how the pieces attach | ✓ | ✓ |
| Plate planning for kits — how many plates, what goes on each | — | ✓ | + Splits plates across your fleet, honest finish-time forecast | ✓ |
| Adhesive recommendations — cited to datasheets, with prep and cure schedule | — | ✓ | ✓ | + Regulated — food-contact & biocompatible |
| Fleet management — smart routing, utilization, failure rerouting | — | — | ✓ | ✓ |
| Layer-scheduled speed adjustments | — | Manual control | Auto-apply per layer | ✓ |
| Sell & operate | ||||
| What you print | Yours, for personal projects | Yours, for personal projects | Yours to sell — client work included | Yours to sell — client work included |
| Sell what you print — Etsy, Shopify, custom orders, client work | — | — | ✓ | ✓ |
| Customer drawings — can we make this part? | — | — | Every dimension checked · how many will pass · cost and time to quote | + Which machine to run it on · your own pass bar |
| Production drawings out — with the size that actually prints, not just the size you asked for | — | — | PNG · PDF · DXF, every number marked asked-for / as-printed / measured | + your industry’s drawing standard |
| Team seats | 1 | 1 | 3 included · $50/mo each to 10 | Unlimited |
| Assembly manuals + BOM — printable PDF with per-step renders | — | — | Co-branded · multilingual · "what changed" diffs | White-label + 7-language factory work instructions |
| Your customer can check the manual they received is the exact one you signed | — | — | — | ✓ |
| Fulfillment via Craftcloud (5% orchestration fee) | 3 items / month | 3 items / month | Unlimited | Unlimited |
| Material datasheet import — your material’s real numbers, pinned to the exact revision you built on | — | — | ✓ | ✓ |
| Material rule checks before you print — food-contact, REACH, RoHS, flame-retardant, UV | — | — | ✓ | ✓ |
| Will the part survive what it touches? | Warnings — always free | Warnings | Verdicts — solvents, fuels, oils, bleach, UV, weather | + Safety-critical grade — concentrated acids, caustics, food contact |
| Skin-contact guidance for wearables | Flags — always free | Flags | Sell-ready remediation steps | + Market compliance checks (EU · UK · US · Canada) |
| Magnets in printed parts — selection, fit, retention | Warnings — always free | Design guidance | + Validation tests & QC plans | + Child-safety & supplier vetting |
| ESD-safe (anti-static) filaments for electronics work | Safety basics — always free | Safety basics | Grade selection & sourcing for your printer | + Audit-ready ESD program support |
| Conformal-coating guidance for circuit boards | Safety basics — always free | Safety basics | Which coating family, how it fails, what you still must prove | + Named products tied to your controlled documents · governed review for safety-critical boards |
| Sourcing-risk flags for bought parts — end-of-life, single-source, long-lead | — | — | — | ✓ |
| REST API server | — | ✓ | ✓ | ✓ |
| Webhook integrations & custom safety profiles | — | — | ✓ | ✓ |
| Support | Community | Community | Priority | Dedicated CSM · sub-24h response |
| Govern & comply | ||||
| Spend caps on fulfillment orders — $500/order · $2,000/month by default, authenticator-confirmed to raise | ✓ | ✓ | ✓ | ✓ |
| Signed builds + build provenance + SBOM on every release, publicly verifiable | ✓ | ✓ | ✓ | ✓ |
| SSO (SAML / OIDC) + SCIM provisioning | — | — | — | ✓ |
| Role-based access control + full audit trail, long-term retention | — | — | — | ✓ |
| First Article Inspection drafting (AS9102 FAIR) — built from your own print records, signed by your reviewer | — | — | — | ✓ |
| Lockable safety profiles · encrypted G-code at rest | — | — | — | ✓ |
| On-prem / VPC deployment | — | — | — | ✓ |
| Security review pack under NDA — SOC 2 readiness, CAIQ, SIG Lite | — | — | — | ✓ |
| Uptime SLA | — | — | — | 99.9% |
Frequently Asked Questions
Is local printing really free?
Yes. Kiln is open source (AGPL-3.0). Local printing, slicing, and printer control are free forever with no limits on print volume.
What is a fulfillment order?
When you outsource manufacturing through Craftcloud via Kiln. Local printing to your own printers does not count.
Can I self-host everything?
Yes. Kiln runs entirely locally. Pro/Business/Enterprise tiers add optional cloud features, but free tier local basic functionality never requires a subscription. Enterprise customers who need Kiln inside their own infrastructure boundary can deploy on-prem or in their VPC.
Do I need a paid plan for multiple printers?
Free and Pro tiers each support 1 printer. Business includes 3 printers ($15/mo per additional, up to 50). For larger fleets, Enterprise is custom-quoted.
What's the difference between Pro and Business?
Pro is for individual makers and personal projects — single user, single printer, not for prints sold for revenue. Business is for anyone running a real operation: Etsy shops, Shopify stores, custom-order businesses, agencies, schools, manufacturers. Business adds multi-printer fleet management, team seats, QR codes, and the workflow features small shops actually need. (Both tiers are subscription plans for the hosted product — separate from the AGPL-alternative licensing covered below.)
What does annual billing save?
Annual plans save roughly 20% compared to monthly. Pro drops from $49/mo to $39/mo ($468/yr). Business drops from $199/mo to $159/mo ($1,908/yr). Enterprise pricing is custom — annual savings are part of the conversation. You can switch between monthly and annual at any time.
What's included in Enterprise?
Enterprise is for teams running production print operations — manufacturing, regulated industries, large fleets. It includes SSO and SCIM provisioning, named-approver e-signatures on design releases, role-based access control, full audit trails, lockable safety profiles, on-prem or VPC deployment options, a dedicated CSM, and a 99.9% uptime SLA. Pricing is tailored per deal — contact us for a quote that fits your team and use case.
Can our security team review Kiln before we buy?
Yes — that review is designed for. Every release ships with Sigstore-signed builds and SLSA build provenance, attested in a public transparency log your tooling can query, and our verification guide shows how to check any download yourself in one command. The local engine is open source and auditable. Under NDA we share the fuller evidence package: our SOC 2 readiness assessment (Type I preparation is in progress — we're honest about that), completed CAIQ and SIG Lite questionnaires, and the on-prem deployment architecture.
What stops an AI agent from overspending?
Spend caps, on every account including Free. When you outsource manufacturing through Kiln, a single order is capped at $500 and your calendar-month total at $2,000 by default. Going above either takes a code from your authenticator app — an agent can't do that for you — and every change is audit-logged and reversible by email for 24 hours. Printing to your own printers is never metered or capped.
Can I try Enterprise before committing?
Yes. Email adam@kiln3d.com and we'll set you up with full Enterprise access to evaluate.
Need a non-AGPL license to use Kiln in proprietary code?
Different from the subscription tiers above. Kiln is open source under AGPL-3.0, which requires that derivative works and networked services built on Kiln also be open-sourced. If your company needs to use Kiln in proprietary products without AGPL obligations, we offer an AGPL commercial license (a dual-licensing alternative — not a subscription tier). Contact adam@kiln3d.com to discuss.