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API · /margin-api

Margin & Markup API

healthy 4,255 Subscribers

Pricing and profitability maths as an API. The margin endpoint solves the relationships between unit cost, selling price, gross margin (a percentage of the price), markup (a percentage of the cost) and profit — give it any two of these and it works out all the rest. Price a product from a target margin, find the true margin of an existing price, convert a markup into a margin (they are not the same — the same price always has a lower margin than markup), or back out a cost from a price and markup. The breakeven endpoint computes how many units, and how much revenue, you need to sell to cover your fixed costs, given a unit price and a variable cost per unit, and returns the contribution margin and contribution-margin ratio. Negative results are reported honestly so a loss-making price is obvious. Everything is computed locally and deterministically, so it is instant and private. Ideal for e-commerce and retail pricing, quoting and sales tooling, finance and FP&A, marketplaces and POS systems, and unit-economics modelling. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. This is pricing maths; for everyday percentage operations use a percentage API and for loan and interest maths use a finance-calculator API.

#margin #markup #pricing #profit #finance #developer-tools
api.oanor.com/margin-api
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Machine-readable spec so AI agents can integrate this API.

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

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

Margin & Markup API — live data on the oanor API marketplace

API health

healthy
Uptime
100.00%
Server probes · 24h
Avg latency
79 ms
Server probes · 24h
Subscribers
4,255
active
Total calls
57
last 7 days
status Full status page → · 9 probes/24h

Pricing

Pick a tier — billed monthly, cancel anytime.

Free

Free

  • 3,335 calls / month
  • 2 requests / second
  • Hard cap (429 above quota, no overage)
  • 3,335 calls/month
  • 2 req/sec
  • Margin + break-even
  • No credit card
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Starter

€4.85 /month

  • 12,850 calls / month
  • 8 requests / second
  • Hard cap (429 above quota, no overage)
  • 12.85k calls/month
  • 8 req/sec
  • Solve from any two inputs
  • Email support
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Pro

€24.75 /month

  • 179,500 calls / month
  • 20 requests / second
  • Hard cap (429 above quota, no overage)
  • 179.5k calls/month
  • 20 req/sec
  • Pricing / quoting / POS pipelines
  • Priority support
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Mega

€62.75 /month

  • 940,000 calls / month
  • 50 requests / second
  • Hard cap (429 above quota, no overage)
  • 940k calls/month
  • 50 req/sec
  • Platform scale
  • Dedicated SLA
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Forex Calculator API — oanor API marketplace

Forex Calculator API

Live foreign-exchange trading calculators computed from live ECB reference rates. The pip-value endpoint returns what one pip of a currency pair is worth, in the trader's account currency, for a given lot size. The position-size endpoint returns how many lots to trade to risk a fixed percentage of the account on a given stop-loss. The profit-loss endpoint returns the P&L of a trade from its entry, exit and direction. The margin endpoint returns the margin a position requires at a given leverage. All conversion to the account currency uses live exchange rates. Computed live, nothing stored. Distinct from raw FX-rate feeds — this turns rates into the pip values, position sizes, margins and P&L a trader acts on.

api.oanor.com/fxcalculator-api

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Highlight search terms in text. The highlight endpoint wraps every match of one or more terms in a marker — defaulting to <mark>…</mark>, or any open/close strings you choose (** for Markdown, ANSI codes for the terminal, a CSS span, anything) — and returns the marked-up text and a match count. The snippets endpoint returns short excerpts of the surrounding context around each match, the way a search-results page shows where your query appears. Matching is case-insensitive by default with optional whole-word mode, and terms are matched literally (regex characters are safely escaped). Perfect for search results and in-page find, keyword spotting, log review and document previews. Pure local computation — no key, no third-party service, instant. Live, nothing stored. 3 endpoints. Distinct from search, summarization and diff APIs.

api.oanor.com/highlight-api

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BBCode API

Render BBCode — the [b]…[/b] markup used by forums, bulletin boards, game communities and many comment systems — into clean HTML, or strip it down to plain text. Supports bold, italic, underline, strikethrough, lists, quotes, code blocks, links, images, colour and size. Dangerous URL schemes (javascript:, data:, vbscript:) in links and images are neutralised, so the HTML is safe to display. The to-text endpoint removes all markup for previews, search indexes, notifications and excerpts. Powered by the bbob parser. Pure local computation — no key, no third-party service, instant; send large posts via POST. Live, nothing stored. 3 endpoints. Distinct from Markdown rendering and HTML-to-Markdown conversion.

api.oanor.com/bbcode-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

Frequently asked questions

Quick answers about pricing, quotas, and integration.

How do I get an API key for Margin & Markup API?
Sign up for free at oanor.com, generate an API key from the developer dashboard, and call Margin & Markup API with the x-oanor-key header. No credit card needed for the free tier.
What's the rate limit for Margin & Markup 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 Margin & Markup API cost?
Margin & Markup API has a free tier with 100 calls / month. Paid plans start at €4.85 / 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 Margin & Markup API GDPR-compliant?
All requests to Margin & Markup 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/margin-api/SOME_PATH \
  -H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/margin-api/SOME_PATH", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/margin-api/SOME_PATH");
curl_setopt($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/margin-api/SOME_PATH",
    headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())

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