Developer
$29/mo
5,000 calls/day
For builders shipping their first AI integrations.
- Word Orb + Lesson Orb + Quiz Orb
- 47-language translations
- Word of the day API
- MCP-compatible endpoint
- Community support
Most Popular
Pro
$99/mo
50,000 calls/day
For production agents and growing teams.
- Everything in Developer
- Streaming & webhooks
- Learner state & history
- Ethics compliance flags
- Age-tone adaptation (kid/adult/elder)
- Priority support
Enterprise
$499/mo
Unlimited calls
For mission-critical deployments at scale.
- Everything in Pro
- SLA guarantee
- Custom vocabulary sets
- Kelly Certified badge
- Dedicated support
- White-label options
// Example: look up a word in 47 languages
const res = await fetch('https://mcp.thedailylesson.com/lookup_word', {
method: 'POST',
headers: { 'Authorization': 'Bearer YOUR_API_KEY' },
body: JSON.stringify({ word: 'serendipity', languages: ['es','fr','ja'] })
});
// → { word, definition, ipa, translations: {es, fr, ja}, lesson_day }
const res = await fetch('https://mcp.thedailylesson.com/lookup_word', {
method: 'POST',
headers: { 'Authorization': 'Bearer YOUR_API_KEY' },
body: JSON.stringify({ word: 'serendipity', languages: ['es','fr','ja'] })
});
// → { word, definition, ipa, translations: {es, fr, ja}, lesson_day }
All plans billed monthly. Annual discounts available — contact us. | Looking for consumer plans? →