iSpeech
Text to Speech and Speech Recognition API for developers
Founded
2009
Starting Price
$0
Category
AI Voice & Audio
Last updated April 27, 2026
About iSpeech
iSpeech provides cloud-based Text-to-Speech (TTS) and Automated Speech Recognition (ASR) APIs that enable developers to speech-enable any internet-connected application. With support for 27 languages, multiple audio formats, SSML/MathML markup, and SDKs for JavaScript, Python, PHP, .NET, Android, and iOS, iSpeech makes it easy to add voice capabilities to web and mobile apps.
Pros & Cons
Pros
- Simple and minimal interface that's easy to use without technical expertise
- Supports 27 languages for TTS and ASR with multiple accent options
- Extensive SDK support across major programming languages and platforms
- Free Basic plan available with no sign-up required for testing
- SSML and MathML markup support for fine-tuned speech control
Cons
Key Features
Text-to-Speech API
Convert text to natural-sounding speech audio in multiple voices, formats, bitrates, and playback speeds
Speech Recognition (ASR)
Transcribe spoken language into text with support for various accents and dialects
27 Language Support
TTS and ASR support for 27 languages plus 15 languages for free-form dictation
SSML & MathML Support
Fine-tune speech output with Speech Synthesis Markup Language and Math Markup Language
Word Timing & Viseme Data
Get precise word position timestamps and mouth position data for lip-sync animations
Multi-Platform SDKs
Native SDKs for JavaScript, Python, PHP, .NET, Ruby, Perl, Android, and iOS
Multiple Output Formats
Support for URL Encoded, XML, and JSON API formats with configurable audio output
Pricing
Basic
$0
- Basic TTS access
- Limited usage
- Web app access
Plus
$2.95/month
Best For
App Accessibility
Add text-to-speech to websites and apps to make content accessible to visually impaired users
Developer Integration
Quickly integrate TTS and ASR into applications via REST API and native SDKs
Educational Content
Convert written educational materials into audio format for read-along experiences
Quick Audio Generation
Generate one-off audio clips from text without complex setup or high costs
