languages#

GET /api/v1/languages API key required

List of languages QuizBase serves through the public API, with native names and quiz-ready question counts per language. Use this to populate a language picker in your UI or to verify a ?lang= value before sending it.

Requires X-API-Key (or Authorization: Bearer …).

Parameters#

Parameter	Type	Default	Description
lang	enum	en	Display language for `name`. Native names (`nativeName`) are always in their own script.

Examples#

Response#

{
  "data": [
    { "code": "en", "name": "English", "nativeName": "English", "count": 645923 },
    { "code": "pl", "name": "Polish", "nativeName": "Polski", "count": 647599 }
  ],
  "meta": {
    "count": 2,
    "language": "en",
    "requestId": "req_..."
  }
}

count is the number of approved, public-dump-eligible questions for that language. Updated nightly from public_stats_snapshots.

Performance#

p50 (warm): ~30ms
p95: ~110ms (sustained 50 RPS; estimated — not in load mix). Single-request warm: ~50ms — small static dataset.
Last measured: 2026-05-27
SLO: p95 < 500ms, error rate < 1%