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API · /dictionary-api
Dictionary API
Look up English word definitions with phonetic transcriptions, pronunciation audio, parts of speech and example sentences, plus synonyms and antonyms. Ideal for writing tools, word games, language learning and education apps. Experimental support for 11 more languages.
API health
healthy- Uptime
- 100.00%
- Server probes · 24h
- Avg latency
- 545 ms
- Server probes · 24h
- Subscribers
- 4,603
- active
- Total calls
- 80
- last 7 days
Pricing
Pick a tier — billed monthly, cancel anytime.
Free
Free
- 4,000 calls / month
- 2 requests / second
- Hard cap (429 above quota, no overage)
- 4,000 lookups/month at 2 rps
- Definitions, phonetics and parts of speech
- No credit card
Basic
€14.00 /month
- 90,000 calls / month
- 8 requests / second
- Hard cap (429 above quota, no overage)
- 90,000 lookups/month at 8 rps
- Synonyms, antonyms and usage examples
- Pronunciation audio URLs
- Commercial use allowed
Pro
€39.00 /month
- 500,000 calls / month
- 25 requests / second
- Hard cap (429 above quota, no overage)
- 500,000 lookups/month at 25 rps
- All 12 languages incl. experimental set
- Bulk word batch endpoint
- Email support
Mega
€109.00 /month
- 2,500,000 calls / month
- 80 requests / second
- Hard cap (429 above quota, no overage)
- 2,500,000 lookups/month at 80 rps
- Priority routing and 99.9% uptime SLA
- Highest rate limits for production apps
- Priority support
Built by
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Wordle API
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api.oanor.com/wordle-api
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api.oanor.com/number-api
Words API
Find words by meaning, sound and spelling — similar-meaning words (thesaurus), rhymes, autocomplete suggestions and wildcard spelling matches. Backed by Datamuse. Ideal for writing assistants, autocomplete, crosswords, word games, poetry tools and NLP preprocessing.
api.oanor.com/words-api
Frequently asked questions
Quick answers about pricing, quotas, and integration.
How do I get an API key for Dictionary API?
What's the rate limit for Dictionary API?
How much does Dictionary API cost?
Can I cancel my subscription anytime?
Is Dictionary API GDPR-compliant?
Pick an endpoint from the list on the left to see its details and try it.
Code snippets
Sign up to get an API key, then call any path under your slug.
curl https://api.oanor.com/dictionary-api/SOME_PATH \
-H "x-oanor-key: oanor_test_..."
const res = await fetch("https://api.oanor.com/dictionary-api/SOME_PATH", {
headers: { "x-oanor-key": "oanor_test_..." }
});
const data = await res.json();
$ch = curl_init("https://api.oanor.com/dictionary-api/SOME_PATH");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
$response = curl_exec($ch);
import requests
r = requests.get(
"https://api.oanor.com/dictionary-api/SOME_PATH",
headers={"x-oanor-key": "oanor_test_..."},
)
print(r.json())
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