@lotd/word-orb

Language infrastructure for AI agents. 162,251 words. 47 languages. 240K audio files. Deterministic responses at the edge.

Part of the Orb Platform — dictionary, lessons, and assessments for AI that teaches.

What is Word Orb?

A dictionary API built for AI agents, educational platforms, and robotics. One API call returns:

• Definitions — accurate, etymology-backed, not hallucinated
• 47-language translations — native script + phonetic pronunciation
• Age-appropriate content — kid (5-12), teen, adult, and elder (65+) variants
• IPA pronunciation — standard phonetic notation for every word
• 240K audio files — native-speaker pronunciations via R2

Runs on Cloudflare Workers + D1. Sub-5ms edge delivery. Same input, same output, every time.

Install

npm install @lotd/word-orb

Quick Start

const { WordOrb } = require('@lotd/word-orb');

const orb = new WordOrb({ apiKey: 'wo_your_api_key' });

// Look up any word
const result = await orb.word('serendipity');
console.log(result.def);    // Full definition
console.log(result.ipa);    // /ˌsɛɹ.ən.ˈdɪp.ɪ.ti/
console.log(result.etym);   // Etymology
console.log(result.langs);  // 47-language translations

Get a free API key

const { key } = await orb.signup('you@example.com');
// Returns: wo_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
// 50 free lookups per day, upgrade anytime

MCP Integration (one line)

Add to your Claude Desktop claude_desktop_config.json:

{
  "mcpServers": {
    "word-orb": {
      "url": "https://mcp.thedailylesson.com/mcp"
    }
  }
}

19 MCP tools across all three Orb Platform products. Works with Claude, Cursor, Windsurf, and any MCP-compatible agent.

The Orb Platform

Word Orb is one of three products:

All three share a knowledge graph with 30,288 connections linking words → lessons → quizzes.

Education Stack bundles all three for $179/mo (21% discount).

Try the playground →

API Reference

new WordOrb(options?)

Create a client instance.

orb.word(word) → Promise<WordResult>

Look up any word. Returns definition, pronunciation (IPA), part of speech, etymology, translations across 47 languages, and age-appropriate content.

const data = await orb.word('courage');
// {
//   word: 'courage',
//   ipa: '/ˈkɜːrɪdʒ/',
//   pos: 'noun',
//   def: 'Courage is the ability to face fear, danger, or difficulty...',
//   etym: 'From Old French "corage," meaning "heart, spirit"...',
//   langs: { es: 'coraje', fr: 'courage', de: 'Mut', zh: '勇气', ... },
//   tones: { child: '...', teen: '...', adult: '...' }
// }

orb.words() → Promise<WordListResult>

Get the full word library listing.

const { count, words } = await orb.words();
console.log(`${count} words available`);

orb.audit(email, words) → Promise<AuditResult>

Run a compliance audit on your agent's vocabulary. Returns coverage analysis, age-appropriateness gaps, and a complia

... View full README on GitHub