Moai Lingua
30-language vocabulary GraphQL API
A multilingual vocabulary data API for EdTech developers that fills the gap left by Memrise UGC. Pre-generated data for 13 quiz types, CEFR level and category filters, and instant mapping across 30 languages via a single conceptKey.
# GraphQL
query QuizWords {
quizWords(
cefrLevel: "B2"
targetLang: "ko"
sourceLang: "en"
limit: 10
) {
conceptKey
cefrLevel
langData {
en { word, pronunciation }
ko { word, meanings }
}
quizData {
type
question
options
answer
}
}
}Technical advantages
Single conceptKey mapping
One conceptKey instantly syncs translations and definitions across all 30 languages in a language-neutral structure.
CEFR A1–C2 levels
Classify vocabulary difficulty and filter automatically using the standard European framework.
13 pre-built quiz types
Multiple choice, free response, card matching — 13 quiz types pre-stored in the DB for zero runtime cost.
confusablePair phonetic pairs
Phonetically similar word pairs are pre-mapped so phonics-distinction quizzes generate automatically.
Single GraphQL endpoint
Select only the fields you need to fetch multilingual data efficiently with zero overfetching.
Tenant isolation
Per-customer custom wordlists and learning records are kept safely separated for multitenancy.
First call in 30 seconds
Moai Lingua puts developer experience first. A few lines of code give you production-grade infrastructure immediately. Every API ships with zero-downtime deploys and high availability.
query QuizWords {
quizWords(
cefrLevel: "B2"
targetLang: "ko"
sourceLang: "en"
limit: 10
) {
conceptKey
cefrLevel
langData {
en { word, pronunciation }
ko { word, meanings }
}
quizData {
type
question
options
answer
}
}
}Pricing
Pro
- All 30 languages
- All 13 quiz types
- confusablePair
- Priority technical support
Business
- Tenant isolation
- Upload custom wordlists
- Dedicated manager
Use cases
LMS for language schools
Use the Moai Lingua module to quickly build the core business flow for LMS for language schools. Case #1.
Fast launch for EdTech startups
Use the Moai Lingua module to quickly build the core business flow for Fast launch for EdTech startups. Case #2.
Hands-on API training at coding bootcamps
Use the Moai Lingua module to quickly build the core business flow for Hands-on API training at coding bootcamps. Case #3.