One endpoint. Returns MP3 audio directly. Works with any language or HTTP client.
# Request
curl -X POST https://eidosspeech.xyz/api/v1/tts \
-H "X-API-Key: esk_your_key_here" \
-H "Content-Type: application/json" \
-d '{
"text": "Halo, selamat datang di eidosSpeech!",
"voice": "id-ID-GadisNeural"
}' --output audio.mp3
# Response headers
X-RateLimit-Remaining-Day: 29
X-RateLimit-Limit-Day: 30
X-RateLimit-Tier: registered
Content-Type: audio/mpegProduction-grade TTS API with robust features, no vendor lock-in.
Indonesian, English, Japanese, Korean, Arabic, Spanish, French, German, and many more. Full Unicode support.
Microsoft Edge TTS neural voices with natural intonation. Male and female options per language.
Identical requests return cached audio instantly and reduce repeated compute.
Single API key per account with dashboard regeneration and JWT support in Web UI.
Every response includes X-RateLimit-* headers so clients can track quota safely.
IP-based rate limiting for anonymous traffic plus registration guardrails and blacklist controls.
Create dialog with multiple speakers for podcasts, audiobooks, and character conversations.
Auto-generate .srt subtitle files with accurate timing for accessibility and video editing.
Add emotions such as cheerful, sad, angry, and whispering to increase content engagement.
Translate source text then synthesize in one flow for multilingual content pipelines.
Generate many clips in one call and download a packaged zip with manifest for automation.
Invite members and manage shared access from the Studio v3 authenticated workspace.
Open integration templates, SDK catalog, changelog feed, and queue status in one place.
Pick a language to try it and see its voices.
Create viral content with consistent AI narrators. Perfect for faceless channels, tutorials, and explainer videos.
Engage your audience with trending AI voices. Generate audio for reels and shorts in seconds.
Transform course materials into audio lessons. Make your content accessible to everyone for free.
No hidden fees. No credit card. Free forever for individual use.
Common questions about our free AI voice generator.
Yes! eidosSpeech is a completely free text-to-speech API and online tool. We provide free access to 1,200+ high-quality neural voices without requiring a credit card. It's part of the eidosStack ecosystem of free developer tools.
Yes, you can use the generated audio for YouTube videos, social media (TikTok/Instagram), podcasts, and other projects. Our AI voice generator uses Microsoft Edge TTS voices which are generally allowed for creation, but please review Microsoft's terms for specific commercial restrictions.
We support over 75 languages including English (US/UK), Indonesian (Bahasa Indonesia), Japanese, Spanish, and more. Our library includes 1,200+ AI voices ranging from natural-sounding narrators to character voices.
No. eidosSpeech is a 100% online text-to-speech tool. You can generate audio directly in your browser using our web app, or integrate our REST API into your own applications effortlessly.
Yes! You can instantly download TTS audio as MP3 files for free. Just click the download button after generating speech. The files are compatible with any video editor or creative software.
Free registered accounts can process up to 1,000 characters per API call and 2,000 characters via Web UI. This allows you to convert long paragraphs or scripts, unlike other tools with stricter limits.
