The service interprets data from the Unihan Database to encode text in Chinese characters. Its function emphasizes interpretations common in Mandarin Chinese, but it can draw upon information from the supporting database about Cantonese, Japanese, Korean, and Vietnamese encoding. The character range available is the ~21,000 characters within the range identified as CJK Unified Ideographs.
API methods support submission of a query specifying the subset of characters of interest with filters to narrow the return. Methods return Unicode values for the character(s) matching the query. Methods also can return the strokes making up the character(s) and pronunciations.