China Validators Toolkit

Enables offline, fully local lookups and validations tuned for Chinese development work: statutory holiday and adjusted-workday checks, workday arithmetic, ID card/USCC/mobile format validation, Chinese-to-pinyin conversion, lunar-solar date conversion, and administrative region queries. It also provides searchable summaries of common uni-app, mini program, Element Plus, and Vant APIs, so assistants can answer these questions without any network calls or third-party services.

Provides utility tools including weather alerts, GitHub repository analysis, phone model lookup, Chinese ID card parsing, and User-Agent parsing.

Enables AI agents to build and parse VietQR payments, convert old 63-province addresses to the 34-province structure, validate tax IDs and e-invoices, turn money amounts into Vietnamese words, and convert between solar and lunar calendar dates. All tools run offline with bundled data, returning structured ok/error results.

Verified validation of structured identifiers — IBAN, payment cards, ISBN-13 and VIN — for AI agents. Runs the real checksum algorithms (mod-97, Luhn, mod-10, ISO 3779) instead of letting the model guess, and returns structured results with clear errors.