WordsAPI gives you word data. Word Orb gives you words, lessons, quizzes, and an AI teaching engine.
Feature Comparison
Feature
Word Orb
WordsAPI
Languages
47 + native script
English only
Educational Content
162K words + 226K lessons + 21.9K quizzes
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API Response Time
<50ms edge
~120ms (RapidAPI)
Knowledge Graph
30K connections
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Quizzes & Assessment
21,900 assessments
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Structured Lessons
226,000 blocks
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Pronunciation Audio
240K files
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Search
Prefix + fuzzy + definition
Basic
Batch Requests
Up to 50 words
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Pricing
Free 500/day, from $29/mo
$10/mo via RapidAPI
MCP Agent Support
12 tools
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Why Developers Choose Word Orb
47 languages with native script vs English-only.
Structured lessons and quizzes — no other dictionary API offers teaching content.
Direct API with sub-50ms latency — no RapidAPI proxy overhead.
MCP server with 12 tools for AI agents.
Free tier: 500 calls/day with search, related words, and full word objects.
Fair comparison: WordsAPI has wider English word relationships (has-types, part-of) and easy RapidAPI marketplace integration.
K
Kelly, your AI language teacher, powers every Word Orb response. Curated by educators. Gender-equitable. Age-appropriate. No competitor offers this depth of pedagogical structure in an API.