Pronunciation API

Free · Livelanguage

Pronunciation of English words: ARPABET and IPA transcriptions, stress, and syllable counts, from the CMU Pronouncing Dictionary.

https://api.gargantuan.dev/v1/pronunciationFull reference →

Quick start

No key needed. Try a request right now:

Request
curl "https://api.gargantuan.dev/v1/pronunciation/languages"

Or open it in your browser: https://api.gargantuan.dev/v1/pronunciation/languages

Authentication & limits

No key required. Anonymous callers are rate-limited by IP. Send Authorization: Bearer <key> (or an X-Api-Key header) for a higher tier.

With a key (higher tier)
curl "https://api.gargantuan.dev/v1/pronunciation/languages" \
  -H "Authorization: Bearer YOUR_API_KEY"

Also accepts X-Api-Key or ?api_key=. Limits ride in X-RateLimit-* headers; over the limit returns 429. See rate limits.

Datasets

Pick one with ?lang= (or the relevant param). 1 available:

DatasetCodeLocaleEntries
Englishenen126,052

Endpoints

Edit the inputs and hit Send request to try any endpoint live, right here. No key needed.

GET/v1/pronunciation/languages

List the supported languages (datasets).

Request
https://api.gargantuan.dev/v1/pronunciation/languages
GET/v1/pronunciation/random

Return a random word with its pronunciation.

Request
https://api.gargantuan.dev/v1/pronunciation/random?lang=en
GET/v1/pronunciation/search

Autocomplete: words that start with a prefix.

Request
https://api.gargantuan.dev/v1/pronunciation/search?q=pron&limit=5&lang=en
GET/v1/pronunciation/syllables/{word}

Syllable count of a word.

Request
https://api.gargantuan.dev/v1/pronunciation/syllables/pronunciation?lang=en
GET/v1/pronunciation/{word}

Pronunciations (ARPABET + IPA), stress pattern, and syllable count.

Request
https://api.gargantuan.dev/v1/pronunciation/serendipity?lang=en

FAQ

Is the Pronunciation API free to use?

Yes. It is free and public. Anonymous requests need no key and are rate-limited by IP; a free API key raises your limits.

Do I need an API key?

No key is required to start. Send an Authorization: Bearer key (or an X-Api-Key header, or ?api_key=) to move to a higher tier.

What is the base URL?

https://api.gargantuan.dev/v1/pronunciation

What are the rate limits?

Every response carries X-RateLimit-Limit and X-RateLimit-Remaining headers. Anonymous callers get the lowest tier (by IP); a free key is higher; Pro is highest. Over the limit returns 429 with Retry-After.

What format does it return?

JSON over HTTPS. Every response also includes a "source": "itsmattgeorge.com" attribution field.

Full reference & authentication
Params, live responses, keys, and every endpoint in one place.
Open the docs →