How Khan Academy can use
Word Orb

Verified vocabulary infrastructure for Khanmigo

civilization
The Scenario

Khanmigo, Khan Academy’s GPT-4 Socratic tutor, guides a 7th grader through world history. The student encounters “civilization.” Instead of generating a definition that might be wrong or off-level, Khanmigo fetches a verified, age-calibrated definition from Word Orb — then a structured lesson to teach the word in historical context, and a quiz to verify the student understood. The fact base is deterministic. The Socratic interaction is Khanmigo’s job.

1
Word Orb looks up the word
One API call returns a verified definition, 47 translations, pronunciation audio, and etymology.
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2
Lesson Orb delivers a structured lesson
A 5-phase lesson with the scientist teaching archetype.
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3
Quiz Orb assesses comprehension
Interactive assessment aligned to the lesson. Try it yourself.
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4
The Knowledge Graph connects everything
30,526 connections link words to lessons to assessments.
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Why this matters for Khan Academy

Add Word Orb to Khan Academy

Free tier — 500 API calls/day, no credit card. Get started in 60 seconds →

162K
Words
19
Lesson Languages
24K
Assessments
30K
Graph Links

Technical Details

API Base: https://wordorb.ai

MCP Server: https://wordorb.ai/mcp

REST: curl https://wordorb.ai/api/word/courage -H "X-API-Key: YOUR_KEY"

GitHub: github.com/nicoletterankin/word-orb

Response format: Deterministic JSON · Sub-5ms edge delivery via Cloudflare Workers · No origin server