Word Orb — English vocabulary for reader glossaries

Retrieve stored AI-assisted English lexical records for a vocabulary list without generating missing words. Free: 1–10 headwords per request and 10 requests/minute; paid: 1–50 headwords. Returns found records, explicit misses and lookup failures. Optional fields and translations vary; review the content. Requires a Word Orb key in the Authorization header; one request counts toward account quota. Evaluate and compare plans at https://wordorb.ai/playground?ref=mcp_batch#evaluate.

{
  "type": "object",
  "properties": {
    "words": {
      "type": "array",
      "minItems": 1,
      "maxItems": 50,
      "items": {
        "type": "string",
        "minLength": 1,
        "maxLength": 128,
        "pattern": "^[A-Za-z]+(?:[-'][A-Za-z]+)*$"
      },
      "description": "Single English headwords, with internal hyphens or apostrophes allowed. Spaces and phrases are rejected. Maximum 10 for Free; 50 for paid plans."
    }
  },
  "required": [
    "words"
  ],
  "additionalProperties": false
}

Look up one English headword. May generate and cache a missing record using AI. Definitions and optional IPA, etymology and translations are AI-assisted and may be incomplete or incorrect. Use lookup_words when you require stored records only. Requires a Word Orb key; counts toward account quota.

{
  "type": "object",
  "properties": {
    "word": {
      "type": "string",
      "description": "English word"
    }
  },
  "required": [
    "word"
  ]
}

Search stored English headwords or definition text by prefix or fuzzy matching. Returns matching entries, which may be empty. Requires a Word Orb key; counts toward account quota.

{
  "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"
  ]
}

Retrieve available related-word data for an English headword. Relationships and graph coverage vary; an empty result is valid. Requires a Word Orb key; counts toward account quota.

{
  "type": "object",
  "properties": {
    "word": {
      "type": "string",
      "description": "English word to find relations for"
    }
  },
  "required": [
    "word"
  ]
}

Retrieve the stored daily word and available fields. The selected word is shared for a given date. No API key is required; this is not a guarantee of content accuracy.

{
  "type": "object",
  "properties": {
    "date": {
      "type": "string",
      "description": "ISO date (YYYY-MM-DD). Defaults to today."
    }
  }
}

Retrieve an available structured lesson for a day, track and age group. Content availability varies. Requires a Word Orb key; counts toward account quota.

{
  "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"
      ]
    }
  }
}

Retrieve available quiz questions for a lesson day and track. Content availability varies. Requires a Word Orb key; counts toward account quota.

{
  "type": "object",
  "properties": {
    "day": {
      "type": "integer"
    },
    "track": {
      "type": "string"
    }
  }
}

Process supplied text for the selected task. May call AI and return generated content; review the result. Requires a Word Orb key and applicable plan entitlement; counts toward account quotas. Use lookup_words for stored lexical records only.

{
  "type": "object",
  "properties": {
    "task": {
      "type": "string",
      "enum": [
        "write",
        "summarize",
        "compliance_check",
        "retrieve",
        "negotiate",
        "translate",
        "define"
      ]
    },
    "input": {
      "type": "string"
    }
  },
  "required": [
    "task",
    "input"
  ]
}

Check supplied text for configured content flags and reading-level estimates. This heuristic check is not legal compliance certification. Requires a Word Orb key and applicable plan entitlement; counts toward account quotas.

{
  "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"
  ]
}

Request a translation for supplied text and a target language. May use stored data or AI generation; language coverage and quality vary. Requires a Word Orb key and applicable plan entitlement; counts toward account quotas. Use lookup_words to inspect only existing translations.

{
  "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"
  ]
}

Request a definition adapted to the specified age group. May use stored data or AI generation; review the result. Requires a Word Orb key and applicable plan entitlement; counts toward account quotas. Use lookup_words to avoid generated fallback.

{
  "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"
  ]
}

Retrieve existing links between an English headword and lessons or themes. Graph coverage varies; an empty result is valid. Requires a Word Orb key; counts toward account quota.

{
  "type": "object",
  "properties": {
    "word": {
      "type": "string",
      "description": "Word to trace through the graph"
    }
  },
  "required": [
    "word"
  ]
}

Retrieve available image metadata for an English headword. Images and variants are not available for every word. Requires a Word Orb key; counts toward account quota.

{
  "type": "object",
  "properties": {
    "word": {
      "type": "string",
      "description": "Word to get images for"
    }
  },
  "required": [
    "word"
  ]
}

Search available English word embeddings using a description of a concept. Returns similarity-ranked candidates, not verified answers; embeddings require AI processing. Requires a Word Orb key; counts toward account quota.

{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "description": "Natural-language description of the concept (min 2 chars)"
    },
    "limit": {
      "type": "integer",
      "description": "Max results (1-25)",
      "default": 10
    }
  },
  "required": [
    "query"
  ]
}