#markup

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.

api.oanor.com/margin-api

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

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