The catalog .

Validate Or Generate Barcode Check Digits API

Validate or generate barcode check digits for EAN, UPC, and ISBN values. Returns validity and check-digit fields for product data accuracy.

validate-barcode-check-digits

Data ValidationFinanceSecurity & Privacy

Validate Payment Card API

Validate card numbers with Luhn and length checks, identify the network, and return masked or formatted values for safe handling.

Check WCAG Color Contrast API

Compare foreground and background colors and get the WCAG 2.1 contrast ratio, AA and AAA pass or fail, luminance values, and a recommendation.

color-contrast-checker

Data Validation

Validate and Format Phone Number API

Phone validation API that checks a number against per-country rules and returns E.164, national and international formats plus the country code.

validate-phone-number

FinanceStandard Data

Business Days Calculator API.

Add or subtract business days, count them between dates, or check if a date is a business day, using real holidays for US, UK, CA, AU, DE, FR and IN.

Data ExtractionData ValidationE-commerce Quick Tools

business-day-math

v0.2.0sync

Ingredient Parser From Text API

Ingredient parser API that turns a food label's ingredient text into the 14 EU allergens, E-number additives and vegan flags as JSON. Free tier, no card.

IIngredients API

parse-ingredients

Artificial IntelligenceDeveloper Tools

Text Similarity Search API

Compare a source and target string and get a similarity score from 0 to 1. Built for fuzzy matching, duplicate checks, and text ranking.

text-similarity-search

Developer Tools

Text Distance Search API

Compare two strings with Levenshtein distance. Send a source and target, get an integer edit distance for fuzzy matching and typo checks.

text-distance-search

Developer ToolsSEO

Ranked Text Search API

Rank fuzzy matches for a search term against space-separated text. Returns matches with Levenshtein distance for typo-tolerant search.

ranked-text-search

Developer Tools

v1.0sync

Differentiate Text API

Compare two text or code snippets and get ordered diff segments plus addition, deletion, and unchanged counts for review and change tracking.

compare-text-or-code-snippets

HRStandard Data

v1.0sync

Working Day Calculator API

Count the working days between two dates for a country, with weekends and public holidays excluded. Get a JSON breakdown for payroll, SLAs and scheduling.

count-working-days

Data ValidationFinance

v1.0sync

Validate EU VAT Batch API

Validate up to 10 EU VAT numbers in one request, each with its own result. Failed lookups are flagged separately from invalid numbers. Free tier, no card.