#language

Live public profile and language-learning stats from Duolingo, the world's largest language-learning platform — no key, nothing stored. This is the gamified-learning social view: a learner's XP, daily streak, courses and progress, distinct from every other social platform in the catalogue. The user endpoint returns a profile summary — display name, bio, location, join date, total XP, the current daily streak, the language being learned and the from-language, the current course, Super/Plus status and a course count. The courses endpoint returns the per-language breakdown: every course the learner studies with its title, learning and from languages, XP earned and crown count. The streak endpoint returns the streak detail — the current streak length and, when the learner makes it public, the streak start date and longest streak. Lookup is by username; the official mascot account "duo" is always available. Build streak widgets, learning-accountability bots, language-club leaderboards and profile cards on top of real Duolingo data. Private or non-existent usernames return a clean 404.

api.oanor.com/duolingo-api

Japanese-English dictionary data via the open Jisho.org API (no key). The search endpoint queries the dictionary for words and kanji compounds and accepts English, romaji, kana or kanji as input; each entry carries its Japanese writings (word + reading), English senses with parts of speech and usage tags, JLPT level and a common-word flag, with an optional filter for common words only. The word endpoint returns the single best — preferably common — match for a keyword, ideal for quick look-ups and language tools. Real dictionary data straight from Jisho, cached briefly for speed — no key. 3 endpoints. Ideal for language-learning apps, furigana and reading helpers, vocabulary tools and Japanese NLP enrichment.

api.oanor.com/jisho-api

Urban Dictionary as an API — the crowd-sourced dictionary of slang, internet terms, memes, abbreviations and pop-culture expressions. Where a formal dictionary stops, Urban Dictionary explains the words people actually use online and in conversation: youth slang, gaming and meme vocabulary, acronyms, regional expressions and the ever-changing language of the internet. This API wraps the official Urban Dictionary service into a clean JSON interface. /v1/define?term=yeet returns the community definitions for a slang term, each with a real usage example, the contributing author, the up- and down-vote counts and a computed net score, sorted best-first so the most upvoted meaning comes first (or pass defid to fetch one specific definition by its id). /v1/random returns a batch of random definitions — perfect for a slang word-of-the-day, discovery features or fun. /v1/autocomplete?term=ye returns term suggestions as the user types, each with a short preview, for building search-as-you-type experiences. Ideal for chat and social apps decoding slang, language-learning and culture tools, moderation context, trivia and entertainment bots, and word-of-the-day widgets. Definitions are user-submitted and, by the nature of the source, may contain strong or NSFW language. Data from Urban Dictionary. For formal definitions, pronunciation and etymology, pair this with a standard dictionary API.

api.oanor.com/urbandict-api

The Japanese kanji writing system as an API — every Jōyō, Kyōiku and Jinmeiyō kanji with its on/kun readings, English meanings, JLPT level, school grade, stroke count and newspaper frequency. Look up a single kanji (e.g. 字 → grade 1, JLPT 4, readings ジ / あざ, meanings "character, letter"), find every kanji that shares a kana reading (e.g. かじ), list the vocabulary that uses a given kanji, or pull a whole standard set (Jōyō 2,136 · Kyōiku · grade-1…grade-6 · Jinmeiyō) with paging. Backed by the open KANJIDIC2 / JMdict datasets via kanjiapi.dev. Ideal for Japanese-learning and flashcard apps, SRS/Anki-style study tools, furigana and reading aids, language-education platforms and linguistics research.

api.oanor.com/kanji-api

Stopword lists and removal for 58 languages. Fetch the full stopword list for a language, see all supported languages with their word counts, check whether a single word is a stopword, or strip stopwords out of a block of text to get a clean keyword stream. Built on the open stopwords-iso dataset and served entirely in-memory, so responses are instant and the service is always available. Ideal for search indexing and relevance, NLP preprocessing and text mining, keyword extraction, tag generation and content tooling.

api.oanor.com/stopwords-api

Look up English word definitions with phonetic transcriptions, pronunciation audio, parts of speech and example sentences, plus synonyms and antonyms. Ideal for writing tools, word games, language learning and education apps. Experimental support for 11 more languages.

api.oanor.com/dictionary-api