Dictionary data built for developers
Definitions, examples, IPA pronunciations, syllables, synonyms, antonyms and synthesized pronunciation audio, all from one REST API. Free while in public testing, one API key by email.
curl -H "X-API-Key: YOUR_KEY" \
https://api.quickpronounce.site/v1/dictionary/wonderfulEndpoints
Two endpoints. Both take an X-API-Key header — request a free key by email.
/v1/dictionary/:wordDefinitions, examples, part of speech, synonyms, antonyms, IPA phonetics and an anglicized syllable breakdown for a single word.
curl -H "X-API-Key: YOUR_KEY" \
https://api.quickpronounce.site/v1/dictionary/wonderful{
"success": true,
"data": {
"word": "wonderful",
"entries": [
{
"partOfSpeech": "Adjective",
"definitions": [
"Tending to excite wonder; surprising, extraordinary.",
"Surprisingly excellent; very good or admirable, extremely impressive."
],
"examples": [
"They served a wonderful six-course meal.",
"What appears to be wonderful may turn out to be anything but."
]
},
{
"partOfSpeech": "Adverb",
"definitions": ["Exceedingly, to a great extent."],
"examples": ["The project was wonderfully successful beyond anyone's expectations."]
}
],
"defaultPartOfSpeech": "Adjective",
"synonyms": ["well", "great", "all right", "top", "nice", "fire"],
"antonyms": ["boring", "common", "disgusting", "dull", "horrible"],
"phonetics": {
"us": "/ˈwʌndɚfl/",
"uk": "/ˈwʌndəfl/"
},
"syllables": {
"us": [
{ "text": "wuhn", "stress": 1 },
{ "text": "derfl", "stress": 0 }
],
"uk": [
{ "text": "wuhn", "stress": 1 },
{ "text": "duhfl", "stress": 0 }
]
}
}
}/v1/pronunciation/:wordEverything the dictionary endpoint returns for phonetics and syllables, plus a synthesized MP3 pronunciation clip (base64-encoded) using Google Cloud’s WaveNet voices.
| Param | Type | Description |
|---|---|---|
accent | query, optional | us (default) or uk |
gender | query, optional | male (default) or female |
speed | query, optional | slow, normal (default) or fast |
curl -H "X-API-Key: YOUR_KEY" \
"https://api.quickpronounce.site/v1/pronunciation/wonderful?accent=us&gender=female&speed=fast"{
"success": true,
"data": {
"word": "wonderful",
"meta": {
"accent": "us",
"gender": "female",
"speed": "fast"
},
"phonetics": {
"us": "/ˈwʌndɚfl/",
"uk": "/ˈwʌndəfl/"
},
"syllables": {
"us": [
{ "text": "wuhn", "stress": 1 },
{ "text": "derfl", "stress": 0 }
],
"uk": [
{ "text": "wuhn", "stress": 1 },
{ "text": "duhfl", "stress": 0 }
]
},
"audio": {
"content": "<base64-encoded mp3>",
"encoding": "base64",
"format": "mp3"
}
}
}Guides by Topic
Deeper walk-throughs for each part of the API, with code, use cases and FAQs.
Code Examples
Call it from anywhere. No SDK. Add your X-API-Key header, then copy, paste, run.
GET /v1/dictionary/:word returns definitions, IPA and syllables
curl -H "X-API-Key: YOUR_KEY" \
https://api.quickpronounce.site/v1/dictionary/wonderfulGET /v1/pronunciation/:word adds an audio clip to play or save
# Response is JSON with base64 audio. Decode it to an MP3:
curl -s -H "X-API-Key: YOUR_KEY" \
"https://api.quickpronounce.site/v1/pronunciation/wonderful?accent=uk&gender=female" \
| jq -r '.data.audio.content' | base64 --decode > wonderful.mp3Example Responses
Real responses from both endpoints for the word “wonderful.” Request a key, add the X-API-Key header, and you get the same shape for any word.
{
"success": true,
"data": {
"word": "wonderful",
"entries": [
{
"partOfSpeech": "Adjective",
"definitions": [
"Tending to excite wonder; surprising, extraordinary.",
"Surprisingly excellent; very good or admirable, extremely impressive."
],
"examples": [
"They served a wonderful six-course meal.",
"What appears to be wonderful may turn out to be anything but."
]
},
{
"partOfSpeech": "Adverb",
"definitions": ["Exceedingly, to a great extent."],
"examples": ["The project was wonderfully successful beyond anyone's expectations."]
}
],
"defaultPartOfSpeech": "Adjective",
"synonyms": ["well", "great", "all right", "top", "nice", "fire"],
"antonyms": ["boring", "common", "disgusting", "dull", "horrible"],
"phonetics": {
"us": "/ˈwʌndɚfl/",
"uk": "/ˈwʌndəfl/"
},
"syllables": {
"us": [
{ "text": "wuhn", "stress": 1 },
{ "text": "derfl", "stress": 0 }
],
"uk": [
{ "text": "wuhn", "stress": 1 },
{ "text": "duhfl", "stress": 0 }
]
}
}
}{
"success": true,
"data": {
"word": "wonderful",
"meta": {
"accent": "us",
"gender": "female",
"speed": "fast"
},
"phonetics": {
"us": "/ˈwʌndɚfl/",
"uk": "/ˈwʌndəfl/"
},
"syllables": {
"us": [
{ "text": "wuhn", "stress": 1 },
{ "text": "derfl", "stress": 0 }
],
"uk": [
{ "text": "wuhn", "stress": 1 },
{ "text": "duhfl", "stress": 0 }
]
},
"audio": {
"content": "<base64-encoded mp3>",
"encoding": "base64",
"format": "mp3"
}
}
}Rate Limits
Enforced per API key while the API is in public testing. Request a free key by email.
Burst
Daily
These are fair-use limits enforced per key while the API is in public testing, not a hard global ceiling. Need a key or higher limits? Email [email protected].
What's In The Dataset
116,801
Words
373,853
Definitions
333,666
Examples
178,658
Dictionary Entries
Coverage
Averages per entry
POS distribution
Possible Use Cases
Language Learning
Vocabulary builders, pronunciation tools and educational products.
AI Applications
Enhance writing assistants and language-focused AI products.
Browser Extensions
Instant definitions, IPA pronunciation and examples.
Developer Tools
Integrate lexical data into your products quickly.
Creative Writing
Help writers find the perfect word with synonyms and examples.
Accessibility Tools
Plain definitions and IPA guides for understanding complex text.
Building something bigger?
The API is free while it's in public testing: email [email protected] for a key and you're set. It works for prototypes and small projects, and paid plans for higher request volumes are planned as usage grows. The full enriched dataset is also available as a one-time licensed download, separate from API access.
Dictionary content is derived in part from Wiktionary, used under CC BY-SA 4.0, with definitions and examples rewritten and enriched by QuickPronounce. Pronunciation data draws on CMUdict and WordNet.