Wiktionary
Dictionaries
Collaborative dictionary data
No keyHTTPS
Words
Definitions and synonyms for more than 150,000 words
Verified 4 days ago: 100% uptime
API key
Required
HTTPS
Supported
Browser calls
No, needs a proxy
Status
Live · 100/100
What our checks found
- Health score
- 100/100
- Reliability
- 100%
- Average latency
- 743ms
Last checked 2026-09-18. Measured independently, not self-reported by the provider.
How to call it
A starting template for Words. Replace ENDPOINT with the path from the official documentation, which we link above rather than guess at.
# Requires an API key. Check the docs for whether it goes in a header or a query parameter.
curl -s "https://www.wordsapi.com/ENDPOINT" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Accept: application/json"This API does not send CORS headers, so a browser will block a direct call from your front end. Call it from your server, or put a small proxy in front of it.
Where this listing comes from
Aggregated from one public source (public-api-lists), then normalised and checked by us. If something here is wrong, tell us and we will correct it.
Other Dictionaries APIs
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The CTP API provides integration methods for connecting the functionality and content of the Chinese Text Project with external web applications. It consists of a Plugin API for adding external tools and a JSON API for leveraging CTP features externally.
No keyHTTPS
Synonyms
Dictionaries
Synonyms, thesaurus and antonyms information for any given word
API keyCORSHTTPS
Free Dictionary
Dictionaries
This API allows users to access word definitions, phonetics, and usage examples by sending a request with a specific English word. It serves as a resource for developers building applications that require linguistic data, enhancing learning and communication tools.
No keyHTTPS
Merriam-Webster
Dictionaries
Dictionary and Thesaurus Data
API keyHTTPS
Oxford
Dictionaries
Dictionary Data
API keyHTTPS
Words — common questions
Answered from what our own scheduled checks found, not from the provider's marketing.
Is Words free to use?
Words is listed in our free catalogue, but it requires an API key, so you will need to register before your first call. Providers frequently reserve higher limits and commercial use for paid plans.
Does Words need an API key?
Yes. Words authenticates with an API key. Keep it server-side rather than in browser code, because anything in your frontend bundle is readable by anyone who opens developer tools.
Can I call Words from browser JavaScript?
Not directly. Words did not return CORS headers when we checked, so the browser will block your page from reading the response even though the request itself succeeds. Call it from a server, or put a small proxy in front of it.
Is Words still working?
Yes, as of 2026-09-18. Our automated check reached Words and recorded a 100% reliability score with a median response time of 743 ms. We re-check on a schedule, and this page updates with the result.
Is Words available over HTTPS?
Yes. Words serves over HTTPS, so you can call it from a secure page without triggering a mixed-content block.