{"schema_version":"2025-03-26","name":"word-orb","display_name":"Word Orb","description":"Verified vocabulary, lesson, and assessment APIs for AI agents and learning products. 162K words, 47 dictionary languages, 19 lesson languages, and deterministic educational JSON.","publisher":{"name":"Lesson of the Day, PBC","url":"https://lotdpbc.com"},"version":"6.2.0","base_url":"https://wordorb.ai","transport":{"type":"streamable-http","url":"https://wordorb.ai/mcp"},"authentication":{"type":"bearer","description":"API key starting with wo_. Free tier available for basic lookups."},"tools":[{"name":"lookup_word","description":"Look up any English word  -  returns IPA, definition, etymology, and translations in 47 dictionary languages for verified agent output.","input_schema":{"type":"object","properties":{"word":{"type":"string","description":"English word"}},"required":["word"]},"endpoint":{"method":"GET","path":"/api/word/{word}"}},{"name":"search_words","description":"Search the dictionary by prefix, fuzzy match, or definition content. Find words matching a pattern or meaning.","input_schema":{"type":"object","properties":{"q":{"type":"string","description":"Search query (min 2 chars)"},"limit":{"type":"integer","description":"Max results (1-50)","default":10},"fuzzy":{"type":"boolean","description":"Enable fuzzy matching","default":false},"field":{"type":"string","enum":["word","definition"],"description":"Search field","default":"word"}},"required":["q"]},"endpoint":{"method":"GET","path":"/api/search"}},{"name":"get_related_words","description":"Find semantic neighbors, rhymes, same-root words, and knowledge graph connections for any word.","input_schema":{"type":"object","properties":{"word":{"type":"string","description":"English word to find relations for"}},"required":["word"]},"endpoint":{"method":"GET","path":"/api/word/{word}/related"}},{"name":"word_of_the_day","description":"Get the deterministic word of the day. Same word for all users on a given date. No auth required.","input_schema":{"type":"object","properties":{"date":{"type":"string","description":"ISO date (YYYY-MM-DD). Defaults to today."}}},"endpoint":{"method":"GET","path":"/api/word-of-the-day"}},{"name":"get_lesson","description":"Structured 5-phase lesson (hook->story->wonder->action->wisdom). 365 days x 4 tracks x 3 age groups.","input_schema":{"type":"object","properties":{"day":{"type":"integer","minimum":1,"maximum":365},"track":{"type":"string","enum":["learn","grow","teach","trivia"]},"age":{"type":"string","enum":["kids","adult","elder"]}}},"endpoint":{"method":"GET","path":"/api/lesson"}},{"name":"get_quiz","description":"Assessment questions from lesson content. 6 question types for formative evaluation.","input_schema":{"type":"object","properties":{"day":{"type":"integer"},"track":{"type":"string"}}},"endpoint":{"method":"GET","path":"/api/quiz"}},{"name":"generate_text","description":"Write, summarize, compliance-check, retrieve, negotiate, translate, or define text with policy enforcement.","input_schema":{"type":"object","properties":{"task":{"type":"string","enum":["write","summarize","compliance_check","retrieve","negotiate","translate","define"]},"input":{"type":"string"}},"required":["task","input"]},"endpoint":{"method":"POST","path":"/api/text"}},{"name":"check_compliance","description":"Check text for PII, profanity, reading level (Flesch-Kincaid), brand voice violations, GDPR/COPPA markers.","input_schema":{"type":"object","properties":{"input":{"type":"string","description":"Text to check"},"policy":{"type":"object","description":"Optional: {brand_voice: {tone, banned_words}, max_grade_level}"}},"required":["input"]},"endpoint":{"method":"POST","path":"/api/text","note":"Use task: compliance_check"}},{"name":"translate_word","description":"Translate a word or phrase. Single words use 47-language dictionary (instant). Sentences use AI translation.","input_schema":{"type":"object","properties":{"input":{"type":"string","description":"Word or text to translate"},"target_lang":{"type":"string","description":"ISO language code (es, fr, de, zh, ja, etc.)","default":"es"}},"required":["input"]},"endpoint":{"method":"POST","path":"/api/text","note":"Use task: translate, policy: {target_lang}"}},{"name":"define_term","description":"Get an age-calibrated definition for any term. Known words use dictionary data; unknown terms use AI.","input_schema":{"type":"object","properties":{"term":{"type":"string","description":"Term to define"},"age_group":{"type":"string","enum":["child","teen","adult","elder"],"description":"Target age group","default":"adult"}},"required":["term"]},"endpoint":{"method":"POST","path":"/api/text","note":"Use task: define, policy: {age}"}},{"name":"explore_graph","description":"Trace a word through the knowledge graph to find connected lessons, themes, and related words.","input_schema":{"type":"object","properties":{"word":{"type":"string","description":"Word to trace through the graph"}},"required":["word"]},"endpoint":{"method":"GET","path":"/api/graph/word"}},{"name":"get_word_image","description":"Get all available images for a word  -  universal, culture-specific, and age-specific variants.","input_schema":{"type":"object","properties":{"word":{"type":"string","description":"Word to get images for"}},"required":["word"]},"endpoint":{"method":"GET","path":"/api/word/{word}/images"}}],"capabilities":["word_lookup","word_search","related_words","word_of_the_day","structured_lessons","assessment","text_generation","compliance_checking","translation","definition","knowledge_graph","word_images","multilingual_translations","ipa_pronunciation","offline_cacheable"],"pricing":{"free_tier":"500 calls/day, no credit card","developer":"$29/month (5K calls/day)","pro":"$99/month (50K calls/day)","enterprise":"$499/month (unlimited)","details":"https://wordorb.ai/pricing"},"links":{"documentation":"https://wordorb.ai/llms.txt","openapi":"https://wordorb.ai/.well-known/openapi.json","agent_card":"https://wordorb.ai/.well-known/agent.json","mcp_endpoint":"https://wordorb.ai/mcp","server_card":"https://wordorb.ai/.well-known/mcp/server-card.json","pricing":"https://wordorb.ai/pricing","docs":"https://wordorb.ai/docs","playground":"https://wordorb.ai/playground","daily_lesson":"https://thedailylesson.com","corporate":"https://lotdpbc.com"}}