Cekura

Cekura solves a problem with no obvious answer: how do you know the voice agent you built actually works before it talks to real customers? The platform runs thousands of synthetic conversations before launch, catches failures, and measures performance with clear metrics.

The key feature is the self-improvement loop: Cekura flags an issue, reproduces it in simulation, suggests a prompt fix, and re-runs the gate. All automatic and tracked in CI/CD. You can benchmark Vapi against Retell against ElevenLabs on the same scenarios and see which one actually performs best.

The platform supports adversarial testing for security leaks and prompt injection attacks, plus production monitoring for real-time drift detection. It is HIPAA, SOC 2, and GDPR compliant — critical for any team working in healthcare or finance.