Description
Async Developer Platform provides a human-like voice API designed for next-generation voice applications and agents. It offers low-latency text-to-speech capabilities, ensuring that conversations remain fluid and natural. The platform supports 15 languages, making it suitable for global audiences. With a 24/7 SLA and a 99.9% uptime guarantee, Async ensures enterprise-level reliability and performance.
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The platform is consistently ranked in the Top-3 on Hugging Face TTS Arena, demonstrating its superior voice quality. It offers straightforward pricing starting from $0.50 per hour, with no hidden fees, and includes a free tier for developers to start building without a credit card. Async's ultra-low latency, with a median TTFB of 0.166 seconds, outperforms competitors like ElevenLabs and Cartesia.
Async integrates seamlessly with popular frameworks such as Pipecat, LiveKit, and Twilio, enabling developers to build voice experiences for calls, IVR, and contact centers. The platform also supports workflow automation through n8n and creative AI workflows with Picsart Flow. Developers can customize audio with precision controls, including custom pronunciations, timing controls, and embeddable players.
The platform's advanced features include multi-context WebSocket support, allowing multiple conversation contexts over a single connection, and the ability to clone any voice from a 3-second sample. Async's evolving voice AI models, such as Async Flash v1.5 and Async Pro v1.0, are engineered to handle non-standard text and provide natural speech output. With a privacy-first data policy, Async ensures that user content is not used for model training.
- CategoryText to Speech
- Pricing ModelFreemium
- DeploymentCloud
- PlatformsWeb
Async Developer Platform's Core Features
Human-like voices
Low-latency text-to-speech
Supports 15 languages
Integrations with Pipecat, n8n, LiveKit
99.9% uptime SLA
Custom pronunciations and timing controls
Voice cloning from 3-second samples
Multi-context WebSocket support
Free tier available
How to use Async Developer Platform?
Configure: Set up API with desired parameters
Use: Integrate API into voice applications
Optimize: Adjust settings for latency and quality
Deploy: Launch applications with integrated voice features
Async Developer Platform's Use Cases
- Voice Applications
- Call Centers
- Multilingual Support
- Voice Cloning
- Workflow Automation
