Developer API · Live

Dictionary data built for developers

Definitions, examples, IPA pronunciations, syllables, synonyms, antonyms and synthesized pronunciation audio, all from one REST API. Free tier, no API key required.

Free tierNo API keyRate limited, fair useBrowser-friendly CORS
curl https://api.quickpronounce.site/v1/dictionary/wonderful

Endpoints

Two endpoints. Both work anonymously — just send a request.

GET/v1/dictionary/:word

Definitions, examples, part of speech, synonyms, antonyms, IPA phonetics and an anglicized syllable breakdown for a single word.

Request
curl https://api.quickpronounce.site/v1/dictionary/wonderful
Response
{
  "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 }
      ]
    }
  }
}
GET/v1/pronunciation/:word

Everything the dictionary endpoint returns for phonetics and syllables, plus a synthesized MP3 pronunciation clip (base64-encoded) using Google Cloud’s WaveNet voices.

ParamTypeDescription
accentquery, optionalus (default) or uk
genderquery, optionalmale (default) or female
speedquery, optionalslow, normal (default) or fast
Request
curl "https://api.quickpronounce.site/v1/pronunciation/wonderful?accent=us&gender=female&speed=fast"
Response
{
  "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"
    }
  }
}

Code Examples

Call it from anywhere. No key, no SDK, no signup. Copy, paste, run.

GET /v1/dictionary/:word returns definitions, IPA and syllables

curl https://api.quickpronounce.site/v1/dictionary/wonderful

GET /v1/pronunciation/:word adds an audio clip to play or save

# Response is JSON with base64 audio. Decode it to an MP3:
curl -s "https://api.quickpronounce.site/v1/pronunciation/wonderful?accent=uk&gender=female" \
  | jq -r '.data.audio.content' | base64 --decode > wonderful.mp3
Try it in PostmanFork the collection and call every endpoint from a GUI. No setup.
Run in Postman

Try It Yourself

Search any word and see the live response from both endpoints — no API key needed.

Rate Limits

No API key required right now — usage is limited per IP address while this is in public testing.

/v1/dictionary

Per minute60 requests
Per day1,000 requests

/v1/pronunciation

Per minute10 requests
Per day50 requests

These are fair-use limits enforced per IP while the API is in public testing, not a hard global ceiling. Need higher limits or a dedicated API key? Get in touch.

What's In The Dataset

116,801

Words

373,853

Definitions

333,666

Examples

178,658

Dictionary Entries

Coverage

Definitions
100%
Examples
96.4%
IPA Pronunciation
100%

Averages per entry

Definitions2.09
Examples1.87

POS distribution

Noun46.2%
Adjective19.4%
Verb15.2%
Adverb2.2%
Other17.0%

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 free tier above stays free and works for prototypes and small projects. Paid plans for higher request volumes are planned as usage grows. For early access or a dedicated API key now, get in touch. 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.