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API · /compressor-api

Air Compressor API

healthy 3,866 Subscribers

Compressed-air maths as an API, computed locally and deterministically — the receiver, pump-up and SCFM numbers a pneumatics tech or shop owner sizes a system with. The receiver-size endpoint gives the tank you need to ride out a demand burst: volume = demand (free-air CFM) × minutes × 14.7 ÷ the usable pressure window (max − min) — pulling 20 CFM for a minute over a 175-to-100 psi window wants about a 30-gallon receiver, the buffer that lets the pump catch up. The pumpup endpoint gives the time to raise a receiver from one pressure to another: volume × pressure rise ÷ (14.7 × compressor CFM), so a 60-gallon tank from 100 to 175 psi on a 15 CFM compressor takes about 2.7 minutes. The scfm endpoint corrects actual CFM to standard CFM for the inlet conditions — SCFM = ACFM × (inlet pressure ÷ 14.696) × (528 ÷ inlet temperature in Rankine) — so a compressor at 5,000 feet delivers about 17 % fewer SCFM than at sea level, the reason you size tools on SCFM, not the nameplate. Everything is computed locally and deterministically, so it is instant and private. Ideal for pneumatics and shop-air apps, compressor-sizing and tool-demand tools, industrial-air calculators, and trade aids. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 compute endpoints. Estimates — duty cycle and the pump curve shift real numbers.

#compressor #pneumatics #compressed-air #shop #industrial #developer-tools
api.oanor.com/compressor-api
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Machine-readable spec so AI agents can integrate this API.

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

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

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
115 ms
Server probes · 24h
Subscribers
3,866
active
Total calls
0
last 7 days
status Full status page → · 4 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 460 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 460 calls/month
  • 2 req/sec
  • Receiver + pump-up + SCFM
  • No credit card
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Starter

€5.75 /month

  • 12,400 calls / month
  • 6 requests / second
  • Hard cap (429 above quota, no overage)
  • 12,400 calls/month
  • 6 req/sec
  • Altitude SCFM correction
  • Email support
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Pro

€18.10 /month

  • 79,000 calls / month
  • 15 requests / second
  • Hard cap (429 above quota, no overage)
  • 79,000 calls/month
  • 15 req/sec
  • Sizing & shop pipelines
  • Priority support
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Mega

€53.60 /month

  • 256,000 calls / month
  • 36 requests / second
  • Hard cap (429 above quota, no overage)
  • 256,000 calls/month
  • 36 req/sec
  • Platform scale
  • Dedicated SLA
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Industrial and protective-coatings maths as an API, computed locally and deterministically — the film-build numbers a coatings inspector, painter or estimator works to, the ones simple paint estimating skips. The coverage endpoint gives theoretical and practical coverage from the coating's volume solids and the target dry film thickness: coverage = 1604 × the volume-solids fraction ÷ the DFT in mils, where 1604 is the square feet a gallon covers at one mil — so a 50 %-solids coating at 2 mils dry covers about 401 ft² per gallon, less a loss factor for overspray and surface profile. The film-thickness endpoint converts between wet and dry film thickness through the volume solids: WFT = DFT ÷ the solids fraction, because the solvent flashes off and the film shrinks, so a 50 %-solids coating laid 4 mils wet dries to 2 mils — the number you check with a wet-film comb as you spray. The transfer-efficiency endpoint gives the real material needed: theoretical gallons ÷ the transfer efficiency, since conventional spray lands only ~25 % on the part, HVLP ~65 %, electrostatic up to ~95 %. Everything is computed locally and deterministically, so it is instant and private. Ideal for coatings-estimating and inspection apps, industrial-painting and protective-coating tools, NACE/SSPC study aids, and spec calculators. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 compute endpoints. For simple wall-paint area estimating use a paint API.

api.oanor.com/coating-api

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api.oanor.com/tank-api

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api.oanor.com/auger-api

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api.oanor.com/radiant-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Air Compressor API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Air Compressor API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Air Compressor 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 Air Compressor API cost?
Air Compressor API has a free tier with 100 calls / month. Paid plans start at €5.75 / 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 Air Compressor API GDPR-compliant?
All requests to Air Compressor 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/compressor-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/compressor-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/compressor-api/SOME_PATH");
curl_setopt($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/compressor-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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