# LayerCrew Partner API > Order 3D-printed parts from your own system and have them built, packed and shipped under your name. Free to integrate, no minimum, white label by default. Updated 2026-10-24 · HTML: https://layercrew.com/developers · Markdown: https://layercrew.com/developers/index.md · OpenAPI: https://layercrew.com/openapi.json ## Your production line, as an API You sell the parts; we print, pack and ship them under your name. Your system — a webshop, an ERP, a custom site — uploads the file, creates the order with your own reference and your customer's address, and hears back on every step: priced, accepted, in production, shipped with tracking, delivered. By signed webhook, or by polling one ordered feed. - **Free to integrate.** No subscription, no minimum volume, no setup fee. You pay per order, at the per-part price the [calculator](https://layercrew.com/calculator) shows, with the quantity tiers applied automatically. - **White label by default.** Neutral packaging, your sender name, your card text, no invoice in the box. - **An engineer reads every order** before it is accepted — the same design-for-manufacturing look every file gets. - **Test keys at once**, from the moment you accept the agreement; live keys once we countersign. - **No SDK needed.** Plain HTTPS and JSON. Every endpoint, field and error is in the [reference](https://layercrew.com/developers/reference) and in the [OpenAPI document](https://layercrew.com/openapi.json). ## How it works 1. **Register your company.** Sign up at [/developers/register](https://layercrew.com/developers/register) and accept the integration agreement and the data processing agreement in your dashboard. Test keys are yours at once; live keys follow once LayerCrew countersigns. 2. **Upload a file.** Declare the file, PUT the bytes to the signed URL, call `complete`. STL, OBJ and 3MF are priced automatically; STEP goes to an engineer through [contact us](https://layercrew.com/contact-us). 3. **Price it, then order it.** Ask for a quote, or create the order straight away: your own reference, the items, your customer's delivery address, your white-label instructions. Send an `Idempotency-Key` so a retry never creates a twin. 4. **We price, review and accept.** The order is priced within minutes. An engineer accepts it, usually within one business day, or declines it with a reason you can act on. Payment instructions arrive with acceptance; on the default plan production starts once the transfer lands. 5. **Follow it to the door.** Every state change is an event with a sequence number. Listen on a webhook, or poll `GET /v1/events`. Carrier and tracking arrive with `order.shipped`; `order.delivered` closes it. ## Who it is for Companies that take orders for printed parts from their own customers and want them produced without running a print farm: design studios, webshops, product brands, agencies, resellers. Partners are companies — a private individual orders through the [calculator](https://layercrew.com/calculator). ## What you get back - A price per item and totals in EUR, provisional within minutes and frozen at acceptance. - Acceptance, or a rejection with a code and the engineer's note. - Production status: in production, packed, shipped with carrier and tracking, delivered. - An invoice per order, as a PDF link. - A log of every request you made and every webhook we attempted — in your dashboard and over the API. ## Start here - [Quickstart](https://layercrew.com/developers/quickstart) — from sign-up to a test order with webhooks. - [Authentication](https://layercrew.com/developers/authentication) — keys, environments, rotation. - [Files](https://layercrew.com/developers/files), [Quotes](https://layercrew.com/developers/quotes), [Orders](https://layercrew.com/developers/orders) — the three objects you work with. - [Lifecycle and events](https://layercrew.com/developers/lifecycle) and [Webhooks](https://layercrew.com/developers/webhooks) — how you hear back. - [Errors](https://layercrew.com/developers/errors), [Rate limits](https://layercrew.com/developers/rate-limits), [Idempotency](https://layercrew.com/developers/idempotency), [Test mode](https://layercrew.com/developers/test-mode). - [API reference](https://layercrew.com/developers/reference) — every endpoint and field, generated from the spec. - For machines: [/openapi.json](https://layercrew.com/openapi.json), [/llms.txt](https://layercrew.com/llms.txt), [/llms-full.txt](https://layercrew.com/llms-full.txt), and every page as Markdown at its URL plus `.md` — this one at [/developers/index.md](https://layercrew.com/developers/index.md). ## Questions **What does the Partner API cost?** Nothing to integrate. There is no subscription, no setup fee and no minimum volume. You pay per order at the per-part price, with the quantity tiers applied automatically; a contract can set a different discount. **Which file formats can I send?** STL, OBJ and 3MF are priced automatically. STEP files are priced by an engineer: send them through the contact form and we come back with a quote. **Is it really white label?** Yes. Neutral packaging, your sender name, your card text, no invoice in the box. The courier label names LayerCrew as the shipping account, a courier requirement, and shows your sender name as the contact line; nothing in or on the parcel carries our name. **Do I need an SDK?** No. The API is plain HTTPS with JSON bodies. The OpenAPI 3.1 document at layercrew.com/openapi.json loads in any client generator, and every page of these docs is available as Markdown by adding .md to its URL. **How fast is an order accepted?** The order is priced within minutes. An engineer then looks at it and accepts or declines it, usually within one business day. **Can I test before going live?** Yes. Test keys work from the moment you accept the agreement. They run the whole flow, with real pricing, without creating production orders, and let you move a test order through its states yourself.