Krisp Voice Translation API
Real-time speech-to-speech translation API built for accuracy-critical calls, with built-in background voice cancellation.
- Freemium
- API, Web, Windows, macOS, Linux, iOS, Android
- Developer ToolsAudio
- Free plan available
- No credit card
What is Krisp Voice Translation API?
Key features
Real-time speech-to-speech translation
Converts spoken audio between languages live, covering transcription, translation and speech synthesis in one pipeline.
60+ languages any-to-any
Translates across more than 60 languages including locale variants such as US Spanish, French Canadian and Egyptian Arabic.
Background Voice Cancellation
Removes background noise, competing voices and reverberation to keep translation accurate on noisy calls.
Accent-robust recognition
Maintains accuracy with minimal degradation when speakers have strong accents.
Custom vocabulary and dictionary
Lets you add domain-specific terms and per-language-pair translation rules.
WebSocket API and SDKs
Streams audio over a WebSocket endpoint with Python and JavaScript/Node.js SDKs, and a C++ SDK listed as coming soon.
Session configuration via JSON
Controls languages, voice, custom vocabulary, BVC and transcripts through a single JSON object per session.
Pros & cons
Advantages
- Reports 96% accuracy on real enterprise calls that include accents and background noise.
- Built-in background voice cancellation reduces the need for separate audio cleanup before translation.
- Self-serve signup with a free tier and no sales call required lowers the barrier to testing.
- Covers more than 60 languages with any-to-any translation and locale-specific variants.
- Enterprise-grade compliance including SOC 2, GDPR, HIPAA and PCI-DSS, with no voice data stored on Krisp servers.
Limitations
- Paid plans start at $249 per month, which may be high for small projects or hobbyist use.
- The lower tiers cap monthly hours and concurrent connections, so heavy usage pushes you towards overage charges or Enterprise pricing.
- Community-only support on the Starter plan, with email support reserved for higher tiers.
- The C++ SDK is listed as coming soon, so native integrations beyond Python and JavaScript are limited for now.
Use cases
Contact centres adding live translation so agents and customers can speak in their own languages on the same call.
Voice AI and conversational agent builders embedding real-time translation into their applications.
Telephony and headset-based products that need accurate translation despite noisy audio.
Multilingual customer support teams handling calls across many regional language variants.
Businesses needing compliant voice translation under SOC 2, HIPAA or PCI-DSS requirements.
Developers prototyping speech-to-speech translation using the free tier before committing to a paid plan.
Ready to try Krisp Voice Translation API?
Pricing
Starter
249 per month
45 hours per month, 3 concurrent connections, $7.00/hr overage, community support.
Advanced
799 per month
150 hours per month, 10 concurrent connections, $6.50/hr overage, community and email support.
Enterprise
Contact for pricing
Custom hours and concurrency, dedicated support and uptime SLA.
Get started with Krisp Voice Translation API
Click through to Krisp Voice Translation API and start using it now.
- Free plan available
- No credit card