Drafting API reference

This page documents the earlier specification-based drafting endpoint. The current photo-and-description workflow uses a separate reader and graph compiler. Generated patterns are drafts: computational checks do not establish fabric behaviour, fit or readiness for cutting.

Legacy POST /api/draft reference

Request

curl https://stitchu-api.<account>.workers.dev/api/draft \
  -H 'content-type: application/json' \
  -d '{
    "spec": { "garment": "dress", "neckline": "sweetheart", "ruffle": "tiered" },
    "measurements": { "bust": 92, "waist": 74, "hip": 98,
                      "shoulder": 39, "backLength": 42, "armLength": 58, "neck": 36 }
  }'

Response

{
  "apiVersion": "1",
  "pattern": {
    "garment": "sweetheart dress",
    "fabricMeters140": 7.0,
    "guideSteps": [ "Print and check the 3 cm calibration square…", … ],
    "pieces": [
      { "name": "Bodice Center Front", "cutInstruction": "cut 1 on fold",
        "commands": [ {"type":"move","x":0,"y":8}, {"type":"curve","x":61,"y":0,"cp1x":34,…} ],
        "seamAllowance": 15 }
    ]
  }
}

Coordinates are in millimetres. Detected drafting failures return 422 undraftable. A successful response is not a guarantee of fit or sewability; review the construction and make a toile before cutting final fabric.

No LLM cost

The drafting runs on the engine itself, not a model call. Your margin doesn't erode per request.

Reviewable output

Inspect the generated pieces and construction instructions together. Engine checks and physical sewing validation are separate.

Private by design

Send only measurements; nothing about your customer's body is stored or logged.

Try it live

Draft a real pattern against the live endpoint, the same call your product would make. No key needed for this demo (rate-limited).

garment neckline bust waist hip

the response appears here…

Grade a size run.

One design, a whole size chart. POST /api/grade drafts a spec across an EU size range, every size from the same engine, so a seller gets a full run without maintaining grade rules.

garment neckline from to

the size run appears here…

Beta partners

stitchu is in beta, so pricing comes later; right now a handful of early partners are being onboarded for free. The engine has no per-call AI cost, so pricing can stay low when it lands. Tell us your volume and what you're building.

Maker

A solo Etsy or indie pattern shop. One spec → the eight published sizes (EU34–EU48) via /api/grade.

Studio

A growing brand drafting at volume. Priority support during the build.

Volume

High-volume or white-label. Send your numbers below and it gets shaped with you.

Rivals charge $34–49/mo for a photo-to-pattern tool and publish no accuracy proof. stitchu publishes the benchmark and runs the engine at zero marginal cost; beta is free during the build.

Become a beta partner.

Studios, indie labels and pattern shops, send your volume and you'll be set up.