eidosSpeech is a free text-to-speech (TTS) API that provides access to over 1,200 neural voices across 75+ languages. It was created to offer a cost-effective and accessible alternative to existing TTS services, which often require credit cards or are prohibitively expensive. With a free tier offering 30 requests per day and no credit card required, eidosSpeech is ideal for developers, content creators, and anyone looking to generate high-quality audio from text without any financial barriers.
The service supports direct MP3 output, making it easy to integrate into web and mobile applications. eidosSpeech also includes features such as rate limit headers, abuse protection, and file caching to ensure reliability and performance. It is part of the eidosStack ecosystem, a collection of open and free developer tools designed to simplify web development and AI integration.
eidosSpeech operates through a RESTful API endpoint that accepts text input and returns MP3 audio files. Users can send a POST request with their text and voice selection, and the API will return the generated audio. The system uses Microsoft Edge TTS neural voices, ensuring natural and expressive speech output. Each request is authenticated using an API key, and users can manage their keys through a dashboard. Rate limits are enforced to maintain service stability, with detailed headers provided in each response to help users monitor their usage.
| Use Case | Description |
|---|---|
| YouTube Voiceovers | Generate consistent AI narrators for videos and tutorials |
| Social Media Content | Create audio for Instagram Reels, TikTok Shorts, and other platforms |
| E-Learning & Accessibility | Convert course materials into audio for improved accessibility |
| Web Development | Integrate TTS functionality into web apps with minimal setup |
| Language Learning | Provide audio support for language learners in multiple languages |
