Word Orb Documentation

A dictionary API for AI agents and educational robots. Verified definitions, 47-language translations, pronunciation audio, and age-appropriate explanations.

Data Coverage

Metric	Count
Total words	162,250
Language translations	846,000 across 47 languages
Audio files	240,297 (pronunciation recordings)
Age-appropriate tones	4 (child 5-12, teen, adult, elder 65+)
Teaching archetypes	12

What Each Word Contains

Core

Verified Definitions

Every definition is backed by etymology. Deterministic — same word returns the same result every time. Not hallucinated. Includes IPA pronunciation notation, part of speech, and full etymological trace.

47 Languages

Translations with Native Script

846,000 translation entries. Each translation includes the word in native script (Arabic in Arabic, Mandarin in characters, Japanese in kanji), romanized form, and phonetic pronunciation guide.

4 Age Groups

Age-Appropriate Explanations

Every word has four tone variants: child (5-12), teen, adult, and elder (65+). A robot explaining "courage" to a 5-year-old says "being brave even when you feel scared inside." To an adult: "the mental or moral strength to persevere through fear or adversity."

240K Files

Pronunciation Audio

Real recorded pronunciation files for every word. Not TTS. Robots and voice assistants can play actual pronunciation audio. Available at /audio/pronunciation/{word}.mp3.

Architecture

Word Orb runs on Cloudflare's edge stack:

Workers — API compute at 300+ edge cities, ~3ms response
D1 — SQLite at the edge for words and translations. No connection pooling.
R2 — Object storage for 240K audio files. No egress fees.
KV — Edge caching for hot words

Cache-miss generation: when a word isn't in the database, it's generated in real time (2-4 seconds), stored permanently in D1, and served from edge on all subsequent requests.

Integration

MCP (Model Context Protocol)

One config line connects Word Orb to Claude Desktop, ChatGPT, Cursor, Gemini, and any MCP-compatible agent:

{"mcpServers":{"word-orb":{"url":"https://word-orb-api.nicoletterankin.workers.dev/mcp"}}}

npm Package

npm install @lotd/word-orb

REST API

curl -H "Authorization: Bearer wo_YOUR_KEY" \
  https://word-orb-api.nicoletterankin.workers.dev/api/word/courage

Agent Frameworks

Ready-made integrations for LangChain, CrewAI, and OpenAI Function Calling.

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