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API · /knitting-api

Knitting Gauge API

healthy 3,961 Subscribers

Knitting and crochet gauge maths as an API, computed locally and deterministically. The stitches endpoint turns a gauge — the standard stitches and rows per 10 cm measured from a tension swatch — into the number of stitches to cast on for a target width and the number of rows for a target length; at 22 stitches and 30 rows per 10 cm, a 50 cm wide by 60 cm long piece needs 110 stitches and 180 rows. The gauge endpoint works backwards from a measured swatch, converting a count over a measured distance into stitches (or rows) per 10 cm, per centimetre and per inch — 33 stitches over 15 cm is a gauge of 22 per 10 cm. The convert-pattern endpoint re-scales a pattern written for one gauge to your own gauge so the finished garment keeps its intended size: your count = pattern count · (your gauge / pattern gauge), so a 100-stitch cast-on at a 20-per-10 cm pattern becomes 110 at your 22-per-10 cm tension. Dimensions are in centimetres. Everything is computed locally and deterministically, so it is instant and private. Ideal for knitting, crochet, pattern-design, craft-marketplace and maker app developers, gauge and tension calculators, and yarn-shop tools. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is gauge and stitch maths; works for crochet too by using your stitch gauge.

#knitting #crochet #gauge #tension #crafts #developer-tools
api.oanor.com/knitting-api
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Machine-readable spec so AI agents can integrate this API.

/api/knitting-api/openapi.json
/api/knitting-api/llms.txt

Discovery: GET /api/index.json lists every API.

Knitting Gauge API — live data on the oanor API marketplace

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
72 ms
Server probes · 24h
Subscribers
3,961
active
Total calls
80
last 7 days
status Full status page → · 16 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 7,300 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 7,300 calls/month
  • 2 req/sec
  • Stitches + gauge + pattern conversion
  • No credit card
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Starter

€3.60 /month

  • 73,000 calls / month
  • 6 requests / second
  • Hard cap (429 above quota, no overage)
  • 73,000 calls/month
  • 6 req/sec
  • Per-inch gauge, crochet support
  • Email support
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Pro

€10.00 /month

  • 325,000 calls / month
  • 15 requests / second
  • Hard cap (429 above quota, no overage)
  • 325,000 calls/month
  • 15 req/sec
  • Pattern-app & marketplace pipelines
  • Priority support
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Mega

€32.00 /month

  • 1,720,000 calls / month
  • 40 requests / second
  • Hard cap (429 above quota, no overage)
  • 1,720,000 calls/month
  • 40 req/sec
  • Platform scale
  • Dedicated SLA
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Catenary Cable API — oanor API marketplace

Catenary Cable API

Catenary (hanging-cable) maths as an API, computed locally and deterministically. The sag endpoint solves the exact catenary for a cable hung between two level supports: from the span, the weight per unit length and either the horizontal tension or the sag, it returns the catenary parameter a = H/w, the sag a·(cosh(L/2a) − 1), the cable length 2a·sinh(L/2a), the minimum tension (the horizontal tension at the lowest point) and the maximum tension at the supports (H·cosh(L/2a)), plus the slack over the straight span. The parabolic endpoint gives the shallow-sag parabolic approximation — sag = w·L²/(8·H) — that is standard for overhead utility lines, and converts between sag and tension either way. The length endpoint returns the cable length for a given span and sag, with the parabolic value alongside for comparison. Forces and lengths are unit-agnostic but must be consistent (for example newtons, newtons per metre and metres). Everything is computed locally and deterministically, so it is instant and private. Ideal for power-line and transmission tools, zip-line and rigging apps, suspension and surveying calculators, and physics and engineering education. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is hanging-cable catenary maths; for rigging working load limits use a rigging API and for beam deflection use a beam API.

api.oanor.com/catenary-api

 Cross-Stitch API — oanor API marketplace

Cross-Stitch API

Cross-stitch and embroidery maths as an API, computed locally and deterministically — the design-size, fabric and floss numbers a cross-stitcher, embroidery designer or needlework-shop works a project out with. The design-size endpoint turns a stitch count and a fabric count (stitches per inch) into the finished size: size = stitch count ÷ fabric count, so a 140 × 98 design on 14-count Aida finishes at 10 × 7 inches (25.4 × 17.8 cm), smaller on 18-count and larger on 11-count because a higher count packs more stitches per inch — and it returns the total stitch count (width × height) that drives the floss and the hours. The fabric-needed endpoint adds a margin on every side to give the fabric to cut: design size + twice the margin per dimension, with the usual 3 inches per side for hooping, framing and finishing, so a 10 × 7 design wants a 16 × 13 inch cut. The thread-length endpoint estimates floss from the geometry of a full cross — the front two diagonals plus the back returns is about (2√2 + 2) ÷ fabric count inches per stitch — so 5,000 stitches on 14-count is roughly 1,724 inches, about 44 m, and it estimates the skeins given the number of strands (a 6-strand skein is ~8 m). Everything is computed locally and deterministically, so it is instant and private. Ideal for cross-stitch and embroidery pattern tools, needlework-shop and kit apps, and craft-project calculators. Pure local computation — no key, no third-party service, instant. Floss figures are planning estimates — buy a little extra and dye-lot match. 3 compute endpoints. For sewing yardage use a sewing API; for knitting gauge a knitting API.

api.oanor.com/embroidery-api

 Textile Dyeing API — oanor API marketplace

Textile Dyeing API

Textile-dyeing recipe maths as an API, computed locally and deterministically — the dye, water and auxiliary numbers a dyer weighs out to mix a repeatable dye-bath, whether for a swatch or a full bolt. The dye-weight endpoint gives the dye to weigh = the weight of fabric × the depth of shade, the percentage of dye on the weight of the goods: a 2 % shade on 100 g of fabric is 2 g of dye, pale shades run under half a percent, deep blacks 4 % or more — working on-weight-of-fabric is exactly what makes a recipe scale and repeat. The liquor-ratio endpoint gives the dye-bath volume = the weight of goods in kilos × the liquor ratio, the litres of bath per kilo (a 20:1 ratio is 20 L per kg); lower ratios save water, dye and energy and exhaust deeper, higher ratios level more evenly on delicate or pale work. The auxiliary endpoint gives the salt, soda ash or levelling agent to add = the bath volume × the dosing concentration in grams per litre — salt (50–80 g/L) drives reactive and direct dyes onto cotton, soda ash (10–20 g/L) raises the pH to fix them. Everything is on-weight or per-litre, so the same recipe gives the same colour and chemistry at any scale, and it is computed locally and deterministically, so it is instant and private. Ideal for craft and studio dyers, textile and yarn shops, and dye-recipe and batch-calculator tools. Pure local computation — no key, no third-party service, instant. 3 compute endpoints. For knitting yardage and gauge use a knitting API; for vegetable-ferment or meat-cure salt a fermentation or curing API.

api.oanor.com/dye-api

 Fuse Bead API — oanor API marketplace

Fuse Bead API

Fuse-bead maths as an API, computed locally and deterministically — the bead-count, pegboard and colour numbers a Perler, Hama or melty-bead crafter plans a pixel design with. The grid endpoint turns a width × height pixel pattern into the real build: total beads = width × height, pegboards = ⌈width ÷ board⌉ × ⌈height ÷ board⌉ (a 29-peg square board for midi beads), and the finished size = beads × the bead pitch — so a 58 × 58 midi design is 3,364 beads, four pegboards and about 29 × 29 cm, in millimetres, centimetres and inches, with midi at 5 mm, mini at 2.6 mm and biggie at 9–10 mm. The palette endpoint splits the beads by colour: give it the total and a list of colour percentages and it returns the count per colour (normalised by the percent sum, so it works even when they don’t add to exactly 100) and the bags to buy at about a thousand beads each, or pass raw counts to bag them directly. Everything is computed locally and deterministically, so it is instant and private. Ideal for fuse-bead, pixel-art, kids-craft and maker app developers, pattern-to-shopping-list and project-estimator tools, and craft software. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 2 compute endpoints. For cross-stitch fabric counts use a different API.

api.oanor.com/fusebead-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Knitting Gauge API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Knitting Gauge API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Knitting Gauge API?
Free tier allows 1 request per second. Paid plans scale up to 50 requests per second on the Mega tier. Hard limits return HTTP 429 above the quota — no surprise overage charges.
How much does Knitting Gauge API cost?
Knitting Gauge API has a free tier with 100 calls / month. Paid plans start at €3.60 / month with higher quotas and faster rate limits.
Can I cancel my subscription anytime?
Yes. Plans are billed monthly and you can cancel anytime from your billing dashboard. No long-term contracts and no cancellation fee.
Is Knitting Gauge API GDPR-compliant?
All requests to Knitting Gauge API go through our EU-based gateway. Your upstream API key never leaves our server and no personal data is shared with the upstream provider beyond the request you send.

Pick an endpoint from the list on the left to see its details and try it.

Code snippets

Sign up to get an API key, then call any path under your slug.

curl https://api.oanor.com/knitting-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/knitting-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/knitting-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);
import requests
r = requests.get(
    "https://api.oanor.com/knitting-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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