Is Langbly free to use?

Yes, Langbly is listed as a free public API. Visit the official documentation for current rate limits and usage policies.

Does Langbly require authentication?

Yes, Langbly requires API Key authentication. Check the documentation for setup instructions.

Can I call Langbly directly from the browser?

Yes, Langbly supports CORS, so client-side calls work without a proxy.

Langbly — Free Public API

Overview

Langbly provides context-aware translation — key-based.

⚠️ Status (verified 2026-08): a guessed path returned HTTP 404 {"error":{"message":"Not Found","code":404}} (structured) — the API is alive; route paths differ. Check the docs for valid routes.

What it provides

curl "https://api.langbly.com/v1/translate?api_key=YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"hello","target_lang":"fr"}'

Notes

Translation + language detection (100+ languages).
Route paths per the docs.

FAQ

Is Langbly free? Key-based with a free tier per the docs.

Why 404? Our 2026-08 guess path was wrong (verified) — check the docs.

What does it do? Translation and detection.

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