General Utilities x402 offerings

Transform text: URL slug, remove accents, ASCII, snake_case, camelCase, PascalCase, kebab-case, CONSTANT_CASE, Title, upper, lower, reverse, strip HTML, normalize whitespace and Unicode (NFC/NFKC). O…

Business days in 150+ countries and their regions: count between two dates, or the date after adding N business days, skipping weekends and official holidays, listing the holidays in the range.

Validate and normalize a phone number from any country: E.164, national and international format, type (mobile, landline, toll-free, VoIP...), country, region, original carrier and time zones. Nothin…

IPv4/IPv6 subnet calculator: network, mask, wildcard, broadcast, first/last host, usable hosts, address type (private, public, loopback...) and whether a given IP belongs to the subnet.

Generate cryptographically secure unique IDs: UUID v4, time-sortable UUID v7, ULID, NanoID, hex, base58 or prefixed tokens (e.g. ord_...), up to 1000 per call.

Decode a vehicle identification number (17-character VIN): make, model, year, trim, body, engine, fuel and electrification, transmission, drive, plant city and country, and safety equipment. Official…

Parse a User-Agent string: browser and version, OS and version, device brand and model, device type (mobile, tablet, desktop) and whether it is a bot, an AI crawler (GPTBot, ClaudeBot...) or an HTTP …

Validate a Spanish Social Security affiliation number (12 digits: province, number, control) and return the province of registration. Computed locally; nothing stored.

Convert Arabic numbers to Roman numerals (1-3999) and Roman to Arabic, validating the canonical form (MCMXCIV) and suggesting the correct one.

Official public holidays of 150+ countries and their regions (Spanish autonomous communities, US states, German Länder...) for a year, whether a given date is a holiday, and the next holiday.

Write a number or money amount in words, in Spanish or English (EUR, USD, GBP, MXN), with correct Spanish apocope (veintiún, un millón de euros). For invoices, cheques and contracts.

Date facts (weekday, ISO week, quarter, day of year, leap year), exact difference between two dates in years, months, days, weeks and Mon-Fri working days, and adding or subtracting days, months or y…

Generate cryptographically secure unique IDs: UUID v4, time-sortable UUID v7, ULID, NanoID, hex, base58 or prefixed tokens (e.g. ord_...), up to 1000 per call.

Generate a barcode as SVG (EAN-13, EAN-8, UPC-A, ISBN, ISSN, Code 128, Code 39, ITF, GS1-128...) for labels and products, computing the check digit when missing.

Summary or analysis of any text with local AI (Qwen3), in the same language as the text; follows your instruction if you add one (e.g. 'list the key points'). Up to 12,000 characters. Text is process…

Extract keywords and keyphrases from a text without AI (RAKE algorithm scoring frequency and degree), in Spanish or English, plus most frequent words. For tagging, indexing and SEO.

Convert integers of any size (signed) between bases 2 to 36: binary, octal, decimal, hex, base32, base36, with bit and byte length and two's complement. Accepts 0x/0b/0o prefixes.

Zero-shot text classification with local AI: pick the best label (or several) from your own list, with confidence and reason.

Convert units of length, mass, volume, area, speed, temperature, data (KB vs KiB), energy, pressure, time and power, metric and imperial, with exact factors.

Language detection with local AI: ISO 639-1 code, language name, confidence and any mixed languages.

Parse a User-Agent string: browser and version, OS and version, device brand and model, device type (mobile, tablet, desktop) and whether it is a bot, an AI crawler (GPTBot, ClaudeBot...) or an HTTP …

Transform text: URL slug, remove accents, ASCII, snake_case, camelCase, PascalCase, kebab-case, CONSTANT_CASE, Title, upper, lower, reverse, strip HTML, normalize whitespace and Unicode (NFC/NFKC). O…

Translate text to any language with local AI (Qwen3-4B), preserving formatting, names and numbers; detects the source language.

Trusted UTC time from Vextorium's NTP-synced server clock, with millisecond Unix timestamps, ISO week and weekday. For timestamping and clock checks.