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API · /caulk-api

Caulk Coverage API

healthy 4,064 Subscribers

Caulk and sealant coverage maths as an API, computed locally and deterministically — the linear-feet-per-tube and how-many-tubes numbers a builder, glazier or DIYer buys sealant by. A bead of caulk is essentially a thin cylinder, so the coverage endpoint works out the feet a cartridge lays from the bead width: volume per foot ≈ (π/4 × width²) × 12 inches, and a standard 10.1 fl oz cartridge (18.2 in³) lays about 30 feet of a quarter-inch bead, 13 feet of a fat three-eighths or 55 of a fine three-sixteenths — pass cartridge_oz for sausage packs or 28-oz tubes, and a tube count to total it. The tubes endpoint runs it backwards: cartridges needed = (joint length × a waste factor) ÷ feet per cartridge, rounded up, so a 100-foot run of quarter-inch bead with 10 % waste takes four tubes. Everything is computed locally and deterministically, so it is instant and private. Ideal for construction, glazing, weatherproofing and home-improvement app developers, material-estimator and shopping-list tools, and contractor software. Pure local computation — no key, no third-party service, instant. Inches and feet; estimates — tooling and waste vary. Live, nothing stored. 2 compute endpoints.

#caulk #sealant #construction #weatherproofing #diy #developer-tools
api.oanor.com/caulk-api
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Machine-readable spec so AI agents can integrate this API.

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

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

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
133 ms
Server probes · 24h
Subscribers
4,064
active
Total calls
0
last 7 days
status Full status page → · 3 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 6,360 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 6,360 calls/month
  • 2 req/sec
  • Coverage + cartridges needed
  • No credit card
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Starter

€4.59 /month

  • 52,000 calls / month
  • 6 requests / second
  • Hard cap (429 above quota, no overage)
  • 52,000 calls/month
  • 6 req/sec
  • Any bead/cartridge size, waste, metres
  • Email support
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Pro

€12.48 /month

  • 216,500 calls / month
  • 15 requests / second
  • Hard cap (429 above quota, no overage)
  • 216,500 calls/month
  • 15 req/sec
  • Material-estimator & shopping-list pipelines
  • Priority support
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Mega

€39.55 /month

  • 1,275,000 calls / month
  • 40 requests / second
  • Hard cap (429 above quota, no overage)
  • 1,275,000 calls/month
  • 40 req/sec
  • Platform scale
  • Dedicated SLA
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Related APIs

Other APIs with overlapping tags.

Chimney & Flue API

Chimney and flue sizing maths as an API, computed locally and deterministically — the draft and dimension numbers a stove installer, sweep or builder runs so a fire pulls cleanly and safely. The flue-size endpoint gives the minimum flue cross-section for a fireplace opening: at least a tenth of the opening area for a square or rectangular liner, a twelfth for a round one (which draws better) — a 36 × 30 inch opening needs about 108 square inches of rectangular flue, or a 10.7-inch round. The draft endpoint gives the theoretical draft from the stack effect, ΔP ≈ 3465 × height × (1/T_outside − 1/T_flue) with temperatures in kelvin, so a 6-metre chimney with 200 °C flue gas on a freezing day pulls about 32 pascals (0.13 inches of water column) — taller and hotter draws harder. The height endpoint applies the 3-2-10 rule: a chimney must finish at least 3 feet above where it pierces the roof and at least 2 feet above anything within 10 feet, whichever is higher. Everything is computed locally and deterministically, so it is instant and private. Ideal for hearth and stove-installer apps, chimney-sweep and inspection tools, building-design calculators, and DIY-safety sites. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 compute endpoints. Educational estimates — verify against your appliance listing and adopted code.

api.oanor.com/chimney-api

Plumbing Code API

Plumbing-code sizing maths as an API, computed locally and deterministically — the fixture-unit and pipe-sizing numbers a plumber, designer or inspector runs from the code book. The dfu endpoint totals drainage fixture units for a set of fixtures (IPC Table 709.1): pass a list like toilet:2,lavatory:3,shower:1,kitchen_sink:1 and it weights each by its discharge — a toilet is 3, a lavatory 1, a tub or shower 2 — for a total of 13, with a grouped full bathroom counting as 6 rather than the sum of its parts. The pipe-size endpoint gives the minimum building-drain size for a DFU load at a slope (IPC Table 710.1(1)): the smallest pipe whose capacity meets the load, so 50 DFU at a quarter-inch-per-foot fall needs a 4-inch drain, with the reminder that any drain carrying a water closet is a 3-inch minimum. The supply-gpm endpoint reads probable peak water demand off the Hunter curve: diversity means 100 supply fixture units draws only about 54 GPM, not the sum of every fixture running at once — the number you size the water service against. Everything is computed locally and deterministically, so it is instant and private. Ideal for plumbing-design and estimating apps, code-check and permit tools, MEP-engineering calculators, and trade-school aids. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 compute endpoints. Based on the IPC — verify against the code adopted in your jurisdiction.

api.oanor.com/plumbing-api

ADA Ramp API

ADA wheelchair-ramp maths as an API, computed locally and deterministically — the run, landing and slope numbers a builder or accessibility planner sizes a ramp by. The rule the ADA fixes is 1 inch of rise per 12 of run, a maximum 8.33 % slope, so the ramp endpoint turns a rise into the ramp: run = rise × 12 (or × 16 / × 20 for a gentler grade if you have the room), plus the level landings the code requires — a 5-foot landing top and bottom and another between runs whenever the rise exceeds 30 inches — and the total length end to end, so a 24-inch rise needs a 24-foot run and 34 feet overall, while a 36-inch rise breaks into two runs with an intermediate landing for 51 feet. The fit endpoint answers the real-world question: does a ramp for this rise fit the run you have? It returns the minimum run an ADA 1:12 ramp needs, whether your space is enough, and the slope you would actually get if you forced it in — flagging when that exceeds 8.33 % and you need a switchback or a lower rise. Everything is computed locally and deterministically, so it is instant and private. Ideal for construction, accessibility, home-modification and contractor app developers, ramp-estimator and code-check tools, and building software. Pure local computation — no key, no third-party service, instant. Confirm against current ADA and local code. Live, nothing stored. 2 compute endpoints.

api.oanor.com/adaramp-api

Deck Builder API

Deck-building maths as an API, computed locally and deterministically — the board, joist and fastener counts a homeowner or contractor needs to material out a rectangular deck. The boards endpoint turns the deck size into a real shopping list: rows = deck width ÷ (board width + gap), rounded up, so a 16 ft × 12 ft deck with a 5.5-inch board face (a 5/4×6) and a 1/8-inch gap needs 26 rows; boards run the length, each row takes one 16 ft board, and a 10 % waste allowance brings it to 29 boards plus the linear footage and the deck area. The joists endpoint frames it: joists are spaced along the length, so count = ⌊length ÷ spacing⌋ + 1 — thirteen joists at 16-inch on-center (seventeen at 12-inch for stronger or diagonal decking), each spanning the width, plus two rim joists and a ledger as total framing linear feet. The fasteners endpoint counts the screws: every decking row crosses every joist once and is fastened with two face screws there, so a 16×12 deck takes 26 × 13 × 2 = 676 screws, about 744 with waste — or one hidden clip per intersection. Everything is computed locally and deterministically, so it is instant and private. Ideal for construction, contractor, home-improvement, building-materials and renovation app developers, deck-estimator and takeoff tools, and lumber-yard calculators. Pure local computation — no key, no third-party service, instant. US units (feet/inches). Live, nothing stored. 3 compute endpoints. Rectangular decks; for indoor floor area use a flooring API.

api.oanor.com/deck-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Caulk Coverage API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Caulk Coverage API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Caulk Coverage 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 Caulk Coverage API cost?
Caulk Coverage API has a free tier with 100 calls / month. Paid plans start at €4.59 / 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 Caulk Coverage API GDPR-compliant?
All requests to Caulk Coverage 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/caulk-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/caulk-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/caulk-api/SOME_PATH");
curl_setopt($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/caulk-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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