cn-holiday-x402.linholiday.workers.dev

Endpoints (6 live)

• GET /is-workday — Is a given date a working day in mainland China? Accounts for statutory holidays and 调休 make-up workdays (official State Council notices). (0.01 USDC on Base)
• GET /lunar — Convert a Gregorian date to the Chinese lunar calendar (农历): lunar month/day incl. leap months, ganzhi (干支), zodiac, solar term and traditional festivals. Years 1902-2098. (0.01 USDC on Base)
• GET /validate/cn-resident-id — Validate a mainland China resident ID number (居民身份证号, GB 11643-1999): format, MOD 11-2 check digit, province, birthdate, age, gender. Offline, nothing stored. (0.01 USDC on Base)
• GET /holidays — All statutory holiday periods and 调休 make-up workdays for a year in mainland China, with the official notice reference. (0.01 USDC on Base)
• GET /solar-terms — The 24 Chinese solar terms (二十四节气) for a Gregorian year with exact times in UTC+8 (e.g. 清明, 冬至). Years 1902-2098. (0.01 USDC on Base)
• GET /validate/uscc — Validate a mainland China Unified Social Credit Code (统一社会信用代码, GB 32100-2015): format, MOD-31 check character, registration authority, organization type, region. Offline, nothing stored. (0.01 USDC on Base)