Aristocles Pty Ltd Languages API
The ISO 639-1 list of two-letter language codes mapped to their English language names. Developers use it for localisation, translation pipelines, content tagging and letting AI agents validate or convert language identifiers. Source: Language code data from the datasets/language-codes project (github.com/datasets), based on ISO 639 lists published by the Library of Congress. Licence: ODC-PDDL-1.0. Base path: /v1/data/world-language-codes. Requires an API key (X-API-Key).