The Arabic Language API
477,000 lemmas · 117 endpoints · Production-ready
# Fetch 5-letter Arabic wordscurl https://api.kalimalab.com/v1/words?letters=5&limit=3 \ -H "Authorization: Bearer klmt_live_..."# Response{ "data": [ { "arabic": "كَتَبَ", "root": "كتب", "pos": "verb" }, { "arabic": "دَرَسَ", "root": "درس", "pos": "verb" } ], "meta": { "total": 84219 }}Everything you need to build Arabic-first apps
One API. The full Arabic linguistic stack — from dictionary lookup to NLP utilities.
Word Search & Lookup
Full-text search across 477,000 lemmas with root filter, pattern filter, and POS tagging.
Root Analysis
8k+ trilateral and quadrilateral roots with derivation trees and word family relationships.
Morphological Patterns
Arabic أوزان — verb, noun, and adjective patterns with full paradigm tables.
Text Analytics
Readability scores, letter frequency distribution, and abjad numerical values.
Grammar Reference
Prepositions, conjunctions, pronouns, and part-of-speech tagging built in.
Arabic Proverbs
40+ curated proverbs with full meaning, origin context, and English translation.
TypeScript SDK
Fully typed client with auto-retry, pagination, and tree-shaking support.
Simple, powerful API
Works with any language. Get up and running in under 5 minutes.
One endpoint, infinite possibilities
The KalimaLab API is built to be intuitive. Every endpoint follows the same conventions — predictable, versioned, and fast.
- Zero configuration — your key is all you need
- Consistent REST API with predictable JSON responses
- Pagination, filtering, and sorting on every list endpoint
- Typed SDK for TypeScript with full IntelliSense
# Search words by rootcurl https://api.kalimalab.com/v1/words \ -H "Authorization: Bearer klmt_live_..." \ -G -d "root=كتب&limit=5"{ "data": [ { "arabic": "كَتَبَ", "root": "كتب", "pattern": "فَعَلَ", "pos": "verb", "meaning_en": "to write" }, ... ], "meta": { "total": 47 }}Try it live
Browse sample words by letter count. No sign-up needed — grab a free key for the full 477,000 lemma dataset.
library
root: كتب
school
root: درس
student (f)
root: طلب
teacher
root: علم
mosque
root: سجد
477,000 lemmas with a free key
Get free keySample vocabulary
Common verbs from the dataset — each with root, transliteration, and meaning.
kataba
to write
ك ت ب
qara'a
to read
ق ر أ
'alima
to know
ع ل م
darasa
to study
د ر س
fahima
to understand
ف ه م
sami'a
to hear
س م ع
Simple, transparent pricing
Start free. Upgrade when you need more.
Free
Perfect for side projects and experimentation.
500 DP/day
5,000 DP/mo
- 1 API key
- Core endpoints
- Community support
- Word of the Day
Starter
For indie developers shipping production apps.
5,000 DP/day
100,000 DP/mo
- 3 API keys
- All endpoints
- Email support
- Word of the Day
Pro
For teams and apps with real traffic.
25,000 DP/day
500,000 DP/mo
- 10 API keys
- All endpoints
- Priority support
- Usage analytics
- Bulk operations
Business
Enterprise-grade reliability and support.
100,000 DP/day
2,000,000 DP/mo
- Unlimited API keys
- All endpoints
- Dedicated support
- SLA guarantee
- Custom integrations
Need custom limits or on-premise? Contact sales
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