Observed arrival · 2026-10-22

curatedapi’s versioned calculator APIs

curatedapi.com Visit website

Editorial interest 77/100 Selection signal · not a rating of the site

An API offering 25 calculators for finance, dates, math, units, everyday tasks, and BMI.

Landing page captured for the 2026-10-22 issue.

For: Developers and AI agents needing reproducible calculator results
Worth noticing: Responses identify the calculator version, formula, references, and whether each number is exact or rounded.

Field notes

The listed set spans finance, dates, math, unit conversion, everyday calculations, and BMI. Pricing starts with a free 1,000-call monthly tier that stops at its limit; paid plans range from $9 to $99 per month, and the page says only successful calls are billed. It also says usage appears in each response and recorded calls can be downloaded as CSV. API keys are requested by email.

Observed signals

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Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

$PaidCommerce or pricing visible

✦PrettyNotable craft visible

◎NicheUnusually specific use

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