Genealogy lookup for a notable person - birth and death, parents, spouses, children and siblings (Wikidata)

Archaeological and heritage site lookup - description, country, coordinates, designations and links (Wikidata)

Public library lookup - description, country, coordinates, founding date and website (Wikidata)

HCPCS Level II medical billing code lookup (CMS) - descriptions, category, dates and obsolete flag

robots.txt rules for a user-agent - allow and disallow rules, crawl delay and sitemap URLs

Package dimensional weight calculator - volume, dimensional weight and billable weight

Sitemap discovery and URL sampling - sitemap indexes, URL sets, lastmod and changefreq

Coat-of-arms reference for a country, place, institution or family, with Wikimedia Commons asset

Pallet count planner from unit count and units per pallet - pallets, unused capacity and utilization

Coin and denomination reference - issuing countries, materials, designers and images (Wikidata)

Packaged-food allergen and may-contain declarations by barcode, with ingredients (Open Food Facts)

GS1 SSCC-18 logistics-unit validator - check digit, payload and serial reference

Loan-to-value calculator - LTV percentage, equity amount and equity percentage

Childcare staffing ratio calculator - children per adult and adults per child

Rule of 72 doubling-time calculator - approximate and exact years to double

Childcare subsidy net-cost calculator - net monthly and annual cost after subsidy and tax credit

Final exam score-needed calculator from current score, target and exam weight

Childcare cost estimate - weekly, monthly, annual and per-child from hours, hourly rate and child count

Freight class hint from weight and dimensions - volume, density and NMFC density class

GPA calculator from grade-point and credit-hour arrays - quality points, credits and GPA