The deterministic fact-verification layer for AI agents. Validates the structured facts an agent emits — IBANs, payment cards, VAT and national tax IDs, crypto and bank addresses, domains, emails, phone numbers, securities and academic identifiers, plus dates, currencies and holidays — against checksums and curated authoritative data, not guesses.
Enables AI assistants to perform Japanese business calendar calculations including holiday detection, business day arithmetic, payment date settlement, and deadline management using local data.
A zero-signup business-day date arithmetic API that allows adding/subtracting working days, counting business days between two dates, and testing if a date is a business day, with custom holidays.
Enables Japanese business calendar operations such as holiday checking, business day calculations, payment date calculation, fiscal year determination, and deadline tracking, all locally without external API.
MCP server for business-day arithmetic with country-aware holiday calendars. It offers tools to check, calculate, and list business days and holidays for over 60 countries.
