oanor
Sign up free
Marketplace Pricing Features Sign in

API · /naics-api

NAICS API

healthy 4,889 Subscribers

The North American Industry Classification System (NAICS 2022) as an API — 2,100+ industry codes in a 5-level hierarchy (sector → subsector → industry group → industry → national industry). Look up any code (e.g. 541511 → Custom Computer Programming Services) with its full ancestor chain and direct children; search industries by title (e.g. "software", "restaurant"); or navigate the tree from the 20 top-level sectors down. NAICS is the standard used by US, Canadian and Mexican statistical agencies to classify business establishments. Ideal for business classification, market research, CRM enrichment, lead segmentation and economic analysis.

#naics #industry-codes #classification #business #sic #b2b
api.oanor.com/naics-api
Get an API key Try in playground → Contact provider

Machine-readable spec so AI agents can integrate this API.

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

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

NAICS API — live data on the oanor API marketplace

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
71 ms
Server probes · 24h
Subscribers
4,889
active
Total calls
80
last 7 days
status Full status page → · 16 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 5,000 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 5,000 calls/month
  • 2 req/sec
  • Lookup + search + tree
  • No credit card
Sign in to subscribe

Starter

€4.00 /month

  • 70,000 calls / month
  • 8 requests / second
  • Hard cap (429 above quota, no overage)
  • 70k calls/month
  • 8 req/sec
  • Hierarchy navigation
  • Email support
Sign in to subscribe

Pro

€11.00 /month

  • 350,000 calls / month
  • 20 requests / second
  • Hard cap (429 above quota, no overage)
  • 350k calls/month
  • 20 req/sec
  • CRM / lead enrichment
  • Priority support
Sign in to subscribe

Mega

€29.00 /month

  • 1,800,000 calls / month
  • 50 requests / second
  • Hard cap (429 above quota, no overage)
  • 1.8M calls/month
  • 50 req/sec
  • Market-research platform
  • Dedicated SLA
Sign in to subscribe

Built by

P
PremiumApi

Related APIs

Other APIs with overlapping tags.

ATC Drug Classification API — oanor API marketplace

ATC Drug Classification API

The WHO ATC (Anatomical Therapeutic Chemical) drug classification as an API — 6,400+ codes organising every medicine into a 5-level hierarchy: anatomical main group → therapeutic subgroup → pharmacological subgroup → chemical subgroup → chemical substance. Look up any ATC code (e.g. A10BA02 → metformin, N02BE01 → paracetamol, J01CA04 → amoxicillin) with its full ancestor chain, direct children and WHO Defined Daily Doses (DDD); search drugs by name; or navigate the tree from the 14 anatomical main groups. Ideal for e-prescribing, pharmacy, clinical decision support, drug databases and health analytics.

api.oanor.com/atc-api

 Break-Even Calculator API — oanor API marketplace

Break-Even Calculator API

Break-even and cost-volume-profit maths as an API, computed locally and deterministically. The breakeven endpoint computes the break-even point of a product — the units you must sell to cover all costs, fixed costs ÷ (price − variable cost) — together with the break-even revenue, the contribution margin per unit and the contribution-margin ratio. The target endpoint computes the units and revenue needed to reach a target profit, (fixed costs + target profit) ÷ contribution margin. The margin-of-safety endpoint takes an actual sales level (in units or revenue) and returns the margin of safety — how far sales can fall before a loss — both in units and as a percentage, plus the profit at that level. Everything is computed locally and deterministically, so it is instant and private. Ideal for business, startup and finance app developers, pricing and product-planning tools, and small-business and accounting dashboards. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is cost-volume-profit analysis; for per-unit margin and markup pricing use a margin API.

api.oanor.com/breakeven-api

 Company Data API — oanor API marketplace

Company Data API

Search and look up the global register of legal entities (companies, funds, branches) by name or LEI, powered by the GLEIF Legal Entity Identifier system — roughly 2.6 million entities worldwide. Returns the official legal name, legal form, jurisdiction, registered address, entity status and registration details. Ideal for KYB, compliance, onboarding and supplier verification.

api.oanor.com/companies-api

 Public Holidays API — oanor API marketplace

Public Holidays API

Public holidays for 120+ countries — by year, the next upcoming holidays for a country, and the list of supported countries. Each holiday includes the date, English and local name, scope (national/regional) and type. Ideal for HR, scheduling and booking systems.

api.oanor.com/holidays-api

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for NAICS API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call NAICS API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for NAICS 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 NAICS API cost?
NAICS API has a free tier with 100 calls / month. Paid plans start at €4.00 / 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 NAICS API GDPR-compliant?
All requests to NAICS 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/naics-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/naics-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/naics-api/SOME_PATH");
curl_setopt($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/naics-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

Ratings

Sign in to rate.

No reviews yet.

Discussion

Ask questions, share usage tips, get answers from the provider and other developers. Public — anyone can read.

Sign in to start a thread or reply.

Sign in

New thread

/ 4000

📌 Pinned 🔒 Locked

·

· ·

/ 4000

🔒 This thread is locked — no new replies.

  • No threads yet — start the discussion.

Support

Private 1:1 support with the provider — billing questions, integration issues, account problems. Only you and the provider team can see these threads.

Sign in to open a support ticket.

Sign in

Open new ticket

Describe what you need help with. The provider team gets an email and replies on the ticket page.

  • No tickets yet for this API.

Subscription active — calls can start immediately.

Send your first request —

Subscription active — copy a snippet and fire off your first call.