Founders INC Canopy

Stop manually reviewing voice AI calls

Zelto listens to every production call, pinpoints where your agents fail, and tells you exactly what to fix.

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Works with your stack

  • Vapi
  • Retell
  • Bland
  • ElevenLabs
  • LiveKit
  • Pipecat
  • Telnyx
  • Custom / API
  • Vapi
  • Retell
  • Bland
  • ElevenLabs
  • LiveKit
  • Pipecat
  • Telnyx
  • Custom / API

How it works

From call to improvement in three steps.

  1. 01

    Connect

    One-click integration with Vapi, Retell, LiveKit, or any provider via API.

  2. 02

    Listen

    Audio and transcripts run through multiple analyses to catch frustration, audio errors, and other failure signals.

  3. 03

    Improve

    Failures, friction, and concrete fixes surfaced in one dashboard.

Mozart

Voice AI debt collection startup

“Zelto reduces the time our engineers and solution architects spend reviewing calls, now they can focus on making the agent for our customers better.”
Diego Sanchez
CTO & Founder, Mozart

Stop reviewing calls. Start shipping improvements.

Book a call with the founders — we'll analyze one of your agents for free.

Get a Demo