{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/open-trivia/refs/heads/main/json-schema/open-trivia-question-schema.json",
  "title": "Question",
  "description": "A single trivia question with its category, difficulty, and answers.",
  "type": "object",
  "required": [
    "type",
    "difficulty",
    "category",
    "question",
    "correct_answer",
    "incorrect_answers"
  ],
  "properties": {
    "type": {
      "type": "string",
      "description": "Question format — multiple-choice or true/false.",
      "enum": ["multiple", "boolean"],
      "example": "multiple"
    },
    "difficulty": {
      "type": "string",
      "description": "Difficulty level assigned to the question.",
      "enum": ["easy", "medium", "hard"],
      "example": "medium"
    },
    "category": {
      "type": "string",
      "description": "Human-readable category name (HTML-entity encoded by default).",
      "example": "Science & Nature"
    },
    "question": {
      "type": "string",
      "description": "The trivia question prompt, encoded per the encode parameter.",
      "example": "What is the chemical symbol for gold?"
    },
    "correct_answer": {
      "type": "string",
      "description": "The correct answer to the question.",
      "example": "Au"
    },
    "incorrect_answers": {
      "type": "array",
      "description": "One incorrect answer for boolean questions, or three for multiple-choice.",
      "items": {"type": "string"},
      "example": ["Ag", "Go", "Gd"]
    }
  }
}