Collins
Bilingual Dictionary and Thesaurus Data
- Authentication
- API Key
- HTTPS
- Yes
- CORS
- Unknown
- Category
- Dictionaries
- Documentation / URL
- https://api.collinsdictionary.com/api/v1/documentation/html/
Overview
Collins provides dictionary data — key-based.
⚠️ Status (verified 2026-08): the API returned HTTP 403 (Cloudflare challenge page) — automated clients are blocked. Verify from your network before relying on it.
What it provides
curl "https://api.collinsdictionary.com/api/v1/dictionaries/english/entries/test" \
-H "accessKey: YOUR_KEY"Notes
- Bilingual dictionaries.
- 403 Cloudflare challenge (verified).
FAQ
Is Collins free? Key-based with a free tier per the docs.
Why 403? Cloudflare blocks automated clients (verified) — try a browser.
What does it return? Dictionary data.
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