How Rosetta Stone can use Orb Platform

Multilingual dictionary infrastructure for IXL Learning’s immersive approach

The Scenario

An English learner in Japan uses Rosetta Stone’s Structured Immersion method and encounters “discovery.” They need the English definition, Japanese translation with native script (発見), IPA pronunciation, and audio they can practice with alongside TruAccent® speech recognition — all from a single API call. Then a structured lesson to build context, and a quiz to confirm retention.

Step 1 — Word Orb looks up the word
One API call returns a verified definition, translations, pronunciation audio, and etymology.
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Step 2 — Lesson Orb delivers a structured lesson
A 5-phase lesson (hook → story → wonder → action → wisdom) with the explorer teaching archetype.
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Step 3 — Quiz Orb assesses comprehension
Assessment questions aligned to the lesson content through the knowledge graph. Your agent tests what it taught.
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Step 4 — The Knowledge Graph connects everything
30,288 connections link words to lessons to assessments. Every quiz question tests what the lesson taught.
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Why this matters for Rosetta Stone

Add Orb Platform to Rosetta Stone

Free tier available — 50 API calls/day, no credit card required. Try the playground →

Technical Details

API Base: https://word-orb-api.nicoletterankin.workers.dev

MCP Server: https://mcp.thedailylesson.com/mcp

npm: npm install @lotd/word-orb

GitHub: github.com/nicoletterankin/word-orb

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