Open Trivia

API

Free RESTful API for trivia questions across categories

Overview

The Open Trivia API is a RESTful service providing access to a curated library of trivia questions. Its primary endpoint (/api.php) accepts parameters to filter questions by amount (1-50), category (e.g., general knowledge, movies), difficulty (easy/medium/hard), type (multiple choice/true-false), and language. Responses are JSON-formatted, containing question text, correct answer, incorrect options, and metadata. Use cases include building trivia games, educational quiz apps, interactive website features, or integrating quiz elements into learning platforms and entertainment tools.

Example Integration (JavaScript)

script.js JS


fetch('https://opentdb.com/api_config.php')
  .then(res => res.json())
  .then(data => console.log(data))
  .catch(err => console.error(err));

Key Features

RESTful architecture
JSON response format
No authentication required
Multiple filtering options (category, difficulty, type)
Multi-language support
True/false and multiple-choice questions

Frequently Asked Questions

? Is Open Trivia API free to use?

Yes, it's completely free for both personal and commercial use without any charges or restrictions.

? Does it require an API Key?

No, the API does not require an API key or any form of authentication to access its endpoints.

? What is the response format?

All responses are in JSON format, including details like question text, correct answer, incorrect options, category, difficulty, and question type.

Top Alternatives

Trivia API (triviaapi.dev) Search Google

Quiz API (quizapi.io) Search Google

Tool Info

Pricing Free

Category Games & Comics

Platform Public API

Pros

⊕ Completely free for all use cases
⊕ No API key needed
⊕ Flexible question customization
⊕ Large and diverse question database
⊕ Supports multiple languages

Cons

⊖ Rate limited to 1 request per second per IP
⊖ No service level agreement (SLA)
⊖ Some niche categories have limited questions
⊖ No real-time question updates