Cross Stitch API
Cross-stitch and counted-thread maths as an API, computed locally and deterministically — the design-size and floss numbers a stitcher plans a pattern with. The design endpoint turns a stitch count into a finished size on a given fabric count: design size = stitch count ÷ fabric count (stitches per inch), so a 140×98-stitch chart on 14-count Aida stitches up at 10×7 inches (25.4×17.8 cm); it adds the fabric to cut with a margin (≈3 inches each side for the hoop and finishing), reports the total stitches, and converts the same chart to another count — that 140×98 design shrinks to 7.8×5.4 inches on 18-count. The floss endpoint estimates the skeins of thread: skeins ≈ ceil(stitches ÷ stitches-per-skein), where about 1,200 full cross-stitches per skein is typical for two strands on 14-count, and it makes sure you buy at least one skein per colour. Everything is computed locally and deterministically, so it is instant and private. Ideal for cross-stitch, embroidery, needlework and craft-pattern app developers, pattern-and-kit and fabric tools, and needlework education. Pure local computation — no key, no third-party service, instant. Fabric count is stitches per inch; sizes in inches and centimetres. Live, nothing stored. 2 compute endpoints. Floss/skein figures are estimates — buy a little extra.
api.oanor.com/crossstitch-api
