Telephony Text-to-Speech API: en_US Voice to MP3
A telephony text-to-speech API turns a short string into an MP3 URL you can play on a phone channel. On Woord that is POST https://www.getwoord.com/api/convert with Bearer auth and form fields (not JSON): text, gender_voice, language. Official docs sample: Hello World, gender_voice=male, language=en_US, effectsProfileId=telephony-class-application.
Starter is $9.99/mo. Cap is 10k characters per file. Trial is 8 days / 20k characters. The Free plan does not call the API. There is no MCP host. Docs: getwoord.com/pages/api_docs.
Request: official en_US sample
curl 'https://www.getwoord.com/api/convert' -X POST \
-H 'Accept: application/json' \
-H 'Authorization: Bearer ACCESS_KEY' \
--data $'text=Hello+World&gender_voice=male&language=en_US&speakingRate=1.00&effectsProfileId=telephony-class-application'
Response: official convert sample
{
"message": "Your audio has been created!",
"audio_src": "https://getwoord.s3.amazonaws.com/4273352455515882618255eaaf3c1cbdbe0.55443890.mp3",
"error": false
}
Fetch audio_src with your own request. Do not hotlink this S3 sample from the article.
Languages in the docs
Standard codes: en_US, en_GB, en_IN, en_AU, pt_BR, pt_PT, fr_FR, fr_CA, de_DE, es_ES, sv_SE, ru_RU, tr_TR. Premium prefixes: text_premium_ and ssml_premium_ plus the same locale.
Go live
1. Register — 8-day trial / 20k characters.
2. Copy the Bearer key.
3. POST form fields to /api/convert.
4. Download audio_src.
Create an en_US MP3 with a Woord key →