What is Krisp Voice Translation API?

Krisp Voice Translation API is a real-time speech-to-speech translation engine built for accuracy-critical applications. Unlike most voice translation APIs that perform well only in clean demo environments, this API was trained on over a million live contact center calls where accuracy is non-negotiable. It delivers 96% accuracy on real-world calls, supports 61+ languages with any-to-any pairing, and handles background noise, accents, and sensitive data like policy numbers and medication names without garbling. The API is available self-serve with 60 minutes of free credit upon signing up to the developer dashboard.

Who it's for

• Contact center operators needing reliable real-time translation for customer calls across diverse languages and accents
• Healthcare and finance developers building applications where accuracy on names, numbers, and sensitive terms is critical
• Global product teams integrating multilingual voice features without sacrificing performance in noisy, real-world environments

Key features

96% accuracy on live calls

Krisp's accuracy metric comes from live enterprise calls with real customers, real accents, and real background noise—not clean benchmark recordings. This means the API performs reliably where other solutions fail.

Background Voice Cancellation

Built-in BVC handles background noise, competing voices, and reverberation from mobile phones, headsets, and call center environments. No preprocessing or audio cleanup is needed before translation.

Custom Vocabulary and Dictionary

Add your own terms like medication names, product names, or jargon so the engine recognizes them. You can also set how each term translates per language pair, ensuring domain-specific accuracy.

61 languages with any-to-any pairing

Translate from any source language to any target language, including locale-specific variants like US Spanish, French Canadian, Egyptian Arabic, Catalan, Basque, and Galician.

What stands out

"Most voice translation APIs work great in demos. Then real users show up with background noise, accents and verification code that gets garbled."

This quote captures the core differentiator: Krisp built its technology on a million live contact center calls where accuracy is non-negotiable. The result is an API that maintains 96% accuracy on real calls with zero patient safety incidents, handling the messy reality of human speech that other APIs can't manage. The same engine powers enterprise contact center deployments with a 99.9% uptime SLA.

Worth checking out if…

You need real-time voice translation that works reliably in production environments with background noise, accented speech, and sensitive data like policy numbers or medication names. If your application requires any-to-any language pairing across 61+ languages, including locale-specific variants, and you want to avoid the procurement cycle with a self-serve API that includes 60 minutes of free credit, Krisp Voice Translation API is worth exploring.