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API · /screenprint-api

Screen Printing API

healthy 3,682 Subscribers

Screen-printing maths as an API, computed locally and deterministically — the ink-usage and cost numbers an apparel printer or print shop quotes a job by. It all turns on “ink mileage”, the printed area a unit of ink covers — in² per pound, with plastisol commonly 12,000–18,000 depending on mesh and deposit. The ink endpoint sizes a run: ink = (print area × prints) ÷ mileage, so a 100 in² design printed 150 times at 15,000 in²/lb takes exactly one pound (454 g, about 3 g a print); pass the design as area or as width × height. The prints endpoint runs it in reverse — how many shirts a tub of ink will do: prints = (ink weight × mileage) ÷ print area, so a pound of plastisol covers 15,000 in², roughly 150 prints of that design before waste, and it takes pounds, kilograms or grams. The cost endpoint puts a price on it: ink pounds × price per pound gives the run’s ink cost and the per-print figure, usually just a few cents — ink only, before screens, garments and labour. Everything is computed locally and deterministically, so it is instant and private. Ideal for screen-printing, apparel-decoration, print-shop and merch app developers, quoting and job-costing tools, and production-planning software. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 compute endpoints. Ink only; add screens, garments and labour for a full quote.

#screen-printing #apparel #printing #merch #maker #developer-tools
api.oanor.com/screenprint-api
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Machine-readable spec so AI agents can integrate this API.

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

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

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
90 ms
Server probes · 24h
Subscribers
3,682
active
Total calls
4
last 7 days
status Full status page → · 8 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 6,650 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 6,650 calls/month
  • 2 req/sec
  • Ink usage + prints + ink cost
  • No credit card
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Starter

€4.42 /month

  • 53,800 calls / month
  • 6 requests / second
  • Hard cap (429 above quota, no overage)
  • 53,800 calls/month
  • 6 req/sec
  • Mileage, lb/kg/g, per-print cost
  • Email support
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Pro

€12.25 /month

  • 221,500 calls / month
  • 15 requests / second
  • Hard cap (429 above quota, no overage)
  • 221,500 calls/month
  • 15 req/sec
  • Quoting & job-costing pipelines
  • Priority support
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Mega

€38.70 /month

  • 1,318,000 calls / month
  • 40 requests / second
  • Hard cap (429 above quota, no overage)
  • 1,318,000 calls/month
  • 40 req/sec
  • Platform scale
  • Dedicated SLA
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Related APIs

Other APIs with overlapping tags.

Paper Weight API

Paper-weight maths as an API, computed locally and deterministically. The convert endpoint converts between grammage (GSM, grams per square metre — the universal measure) and the US basis weight in pounds, which depends on the paper stock type: bond/writing (basis 17×22 in), text/book/offset (25×38), cover (20×26), index (25.5×30.5), tag (24×36) and bristol (22.5×28.5). The weight endpoint computes the mass of a single sheet, a 500-sheet ream and the M-weight (the weight of 1000 sheets in pounds) at a given grammage and sheet size — accepting dimensions in millimetres, centimetres, inches or metres, or a named size (A3–A5, letter, legal, tabloid). The stocks endpoint is a reference of the US stock types with their conversion factors and basis sizes. Everything is computed locally and deterministically, so it is instant and private. Ideal for printing and publishing tools, stationery and packaging apps, print-shop estimators, and shipping-weight calculators. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is paper grammage and basis weight; for general mass-unit conversion use a unit-conversion API.

api.oanor.com/paper-api

Fret Spacing API

Fretted-instrument lutherie maths as an API, computed locally and deterministically — the fret positions a guitar, bass, mandolin or ukulele builder slots a fingerboard to. This is instrument-building geometry, not music theory. The positions endpoint lays out a whole fingerboard from the scale length using the twelve-tone equal-temperament rule: the distance from the nut to fret n = scale length × (1 − 1 ÷ 2^(n/12)), so the 12th fret lands at exactly half the scale (the octave) and each gap shrinks by the constant ratio 2^(1/12) ≈ 1.0595 toward the bridge — a 25.5-inch Fender scale puts fret 1 at 1.431 inches and fret 12 at 12.75. The fret endpoint gives one fret’s distance from the nut, from the previous fret and to the bridge; the scalelength endpoint runs it backwards, recovering the scale length from a measured distance to a known fret (measure to the 12th and double it). It works in inches or millimetres — 25.5 Fender, 24.75 Gibson, 25.4 classical, 34 bass. Everything is computed locally and deterministically, so it is instant and private. Ideal for lutherie, guitar-building, instrument-design and maker app developers, fingerboard-slotting and fret-calculator tools, and CAD/CNC templates. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 compute endpoints. For note names or frequencies use a music-theory API.

api.oanor.com/fretspacing-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

Chainmaille API

Chainmaille maths as an API, computed locally and deterministically — the aspect-ratio and ring numbers a maille artist weaves to. The aspect endpoint computes the all-important Aspect Ratio = inner diameter ÷ wire diameter, and solves for whichever of the three you are missing, then lists the weaves that ring will make: AR, not absolute size, decides everything — too low and the rings won’t close through each other, too high and the weave goes floppy, so a 6.4 mm ID on 1.6 mm wire is AR 4.0, good for European 4-in-1, Byzantine, box chain and more. The ring endpoint does the material maths: wire per ring ≈ π × (inner diameter + wire diameter) — the mean-diameter circumference — so those AR-4 rings take about 25 mm of wire each and weigh roughly 0.4 g in steel; pass a wire length to get how many rings it yields, or a ring count to get the total wire and weight, in any of nine metals from aluminium to silver. Everything is computed locally and deterministically, so it is instant and private. Ideal for chainmaille, jewelry, cosplay-armour and maker app developers, ring-buying and project-estimator tools, and craft software. Pure local computation — no key, no third-party service, instant. Dimensions in mm. Live, nothing stored. 2 compute endpoints. For wire-gauge ↔ mm use a wire-gauge API.

api.oanor.com/chainmaille-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Screen Printing API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Screen Printing API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Screen Printing 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 Screen Printing API cost?
Screen Printing API has a free tier with 100 calls / month. Paid plans start at €4.42 / 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 Screen Printing API GDPR-compliant?
All requests to Screen Printing 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/screenprint-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/screenprint-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/screenprint-api/SOME_PATH");
curl_setopt($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/screenprint-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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