Developer Documentation

Quenza Translation provides a web translator and an API powered by the same 12-language MarianMT backend. Web sessions can save history for authenticated users, while API translations stay stateless and never write translation history. Authenticated translations also use a per-user cache so repeated requests can be served without re-running the model.

OpenAPI JSON Pricing

How to use the app

Select source and target languages from the curated 12-language set.
Submit text from the homepage to receive the translated output instantly.
Authenticated users can open the homepage history modal to review saved web translations.
Administrators manage users, packages, credits, and analytics from the admin dashboard.

Authentication

Web dashboards use session authentication.
API requests require an active API key in the X-API-Key header.
Google reCAPTCHA v3 remains enabled for all web translation, login, and registration requests.

Free tier credits

Free users start with 1,000 daily API credits.
Credits reset 24 hours after depletion.
Admins can temporarily raise a user's active credit cycle without changing the base free tier.
Per-user translation cache entries can be cleared manually from the dashboard.

Supported Languages

English en

Indonesian id

Spanish es

French fr

German de

Italian it

Portuguese pt

Russian ru

Japanese ja

Korean ko

Chinese zh

Arabic ar

Rate Limits and Character Limits

To ensure service reliability, translation limits depend on your authentication status. Guests (non-logged-in visitors) are subject to stricter character and rate limits. Registering and logging into a free account will automatically upgrade these limits.

Channel	Requests per minute	Characters per request
Visitor web	12	500
Authenticated web user	60	3000
Administrator web	120	3000

API Documentation is Locked

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