Find Public APIsA building block for your next idea.
Build a themed quiz with a difficulty selector and explanations for the final score.
Know before you build
Follow the documented request interval and CC BY-SA 4.0 attribution requirements. Responses may contain HTML entities; decode them safely as text. Session tokens can reduce repeat questions.
Check current provider documentation ↗Your first request
Start with this documented example. Replace credential placeholders with your own test credentials. Browser execution depends on the provider’s CORS policy.
curl --request GET 'https://opentdb.com/api.php?amount=5&type=multiple'Practical questions
What can I build with Open Trivia DB?+
Build a themed quiz with a difficulty selector and explanations for the final score.
Does Open Trivia DB need authentication?+
The reviewed example is listed as “No key”. Follow the documented request interval and CC BY-SA 4.0 attribution requirements. Responses may contain HTML entities; decode them safely as text. Session tokens can reduce repeat questions.
Can I call Open Trivia DB from a browser?+
Browser access depends on the provider’s CORS policy for your origin, method, and headers. The playground makes a direct request and cannot bypass those restrictions.
Sources & confidence
Provider documentation was reviewed on 16 September 2026. This is not a live availability test or an endorsement.
Source catalogs can become outdated. Read our review and attribution policy. Plain-text guide ↗