Hide area + project yield
API · /leather-api
Leathercraft API
healthy
4,545 Subscribers
Leathercraft maths as an API, computed locally and deterministically — the weight, area and strap numbers a leatherworker, saddler or maker cuts a project by. The thickness endpoint handles the quirk that leather “weight” is really a thickness: one ounce equals one sixty-fourth of an inch, or 0.397 mm, so 8 oz leather is 3.18 mm — and it converts in either direction between ounces, millimetres and inches and suggests typical uses, from 2–3 oz linings and wallets up to 9 oz-plus belts and saddlery. The area endpoint converts hide area between the US square foot, the European square decimetre (1 ft² = 9.29 dm²) and square metres, and sizes a project: given the leather a project needs and a waste allowance — 25–40 % is normal because hides have irregular edges and flaws — it returns the usable area and how many hides to buy. The strap endpoint counts straps cut from a rectangular piece (count = ⌊width ÷ strap width⌋, each as long as the piece) or the continuous lace length a spiral cut yields from an area (length = area ÷ width). Everything is computed locally and deterministically, so it is instant and private. Ideal for leatherwork, saddlery, crafting, bag-making and maker app developers, project-estimator and material-cost tools, and workshop software. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 compute endpoints.
api.oanor.com/leather-api
API health
healthy- Uptime
- 100.00%
- Server probes · 24h
- Avg latency
- 80 ms
- Server probes · 24h
- Subscribers
- 4,545
- active
- Total calls
- 76
- last 7 days
Pricing
Pick a tier — billed monthly, cancel anytime.
Free
Free
- 6,750 calls / month
- 2 requests / second
- Hard cap (429 above quota, no overage)
- 6,750 calls/month
- 2 req/sec
- Thickness + area + strap yield
- No credit card
Starter
€4.12 /month
- 57,200 calls / month
- 6 requests / second
- Hard cap (429 above quota, no overage)
- 57,200 calls/month
- 6 req/sec
- oz/mm/in, ft²/dm²/m², hides & waste
- Email support
Pro
€11.50 /month
- 233,000 calls / month
- 15 requests / second
- Hard cap (429 above quota, no overage)
- 233,000 calls/month
- 15 req/sec
- Project-estimator & material-cost pipelines
- Priority support
Mega
€36.50 /month
- 1,346,000 calls / month
- 40 requests / second
- Hard cap (429 above quota, no overage)
- 1,346,000 calls/month
- 40 req/sec
- Platform scale
- Dedicated SLA
Built by
Related APIs
Other APIs with overlapping tags.
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
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
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
Paracord API
Paracord-craft maths as an API, computed locally and deterministically — the cord-length numbers a paracord crafter cuts a project to. The bracelet endpoint sizes the cord from the finished length and the weave using the well-known rule of thumb — about a foot of cord per inch of work for a cobra (Solomon) bar, double that for a king cobra, less for a fishtail — so an 8-inch cobra bracelet takes around 9 feet of cord including a foot of waste for the tails; give it a wrist measurement instead and it adds the fit ease and the buckle to get the finished length first, so a 7-inch wrist comes out near 10 feet. The weave endpoint generalises it to any project — lanyards, belts, dog leashes — as cord = finished length × cord-per-inch × the number of working strands, with the weave factors built in or your own cord-per-inch, and answers in inches, feet and metres. Everything is computed locally and deterministically, so it is instant and private. Ideal for paracord, survival-gear, scouting, craft and maker app developers, project-estimator and cut-list tools, and DIY software. Pure local computation — no key, no third-party service, instant. Rules of thumb — cut long and trim. Live, nothing stored. 2 compute endpoints.
api.oanor.com/paracord-api
Frequently asked questions
Quick answers about pricing, quotas, and integration.
How do I get an API key for Leathercraft API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Leathercraft API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Leathercraft 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 Leathercraft API cost?
Leathercraft API has a free tier with 100 calls / month. Paid plans start at €4.12 / 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 Leathercraft API GDPR-compliant?
All requests to Leathercraft 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/leather-api/SOME_PATH \
-H "x-oanor-key: oanor_test_..."const res = await fetch("https://api.oanor.com/leather-api/SOME_PATH", {
headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();$ch = curl_init("https://api.oanor.com/leather-api/SOME_PATH");
curl_setopt($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/leather-api/SOME_PATH",
headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())Ratings
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