QA for your Pipecat agents
Pipecat gives you full control of the pipeline — and full responsibility for quality. Zelto is the missing QA layer: one REST call in, graded conversations and ranked Findings out.
What actually breaks on Pipecat in production
Dashboards show you that calls happened. They don't show you the calls that quietly failed — and those are the ones that cost you customers.
Pipeline bugs that only real traffic finds
Frame processing edge cases, VAD misfires, provider hiccups mid-call. Local testing never covers the acoustic and behavioral range of real callers. Zelto grades what production actually produced.
No dashboard means no visibility
Open-source frameworks don't come with a QA surface. Without one, quality review means an engineer sampling recordings. Zelto grades every call and clusters recurring failures into ranked Findings.
Provider swaps that shift behavior
Pipecat makes it easy to swap STT, LLM, and TTS services — and easy to regress quality without noticing. Zelto's continuous grading turns 'something feels off since the swap' into a concrete Finding with example calls.
Failures that sound fluent
The agent keeps talking smoothly while a tool call fails or it hallucinates an answer. Completion metrics stay green. Conversation-level grading is the only thing that catches it.
How Zelto works with Pipecat
Connect
Add one REST call (calls.ingest) to your pipeline's post-call hook — recording, transcript, metadata. That's the whole integration. An agent prompt for Claude or Cursor to wire it up ships in our docs.
Zelto listens and diagnoses
Every production call is graded against a rubric Zelto auto-learns from your traffic — your domain, your language, your definition of a good call. No setup, no scorecard to write.
Findings, with the fix drafted
Calls that fail for the same reason are clustered into one Finding, ranked by volume, with example calls, a drafted prompt fix, Slack alerts, and an optional Linear ticket.
Production traffic, not simulations.
Simulation tools grade synthetic conversations against scenarios you wrote. Zelto grades what actually happened with real callers on your Pipecatagents — because that's where the failures that matter live. Most teams are integrated in under 15 minutes.
Zelto + Pipecat
The questions teams ask before connecting. Answered honestly.
Other integrations
One week. One agent. Ten findings
Connect one production agent. Zelto listens, then walks you through ten findings with severity, examples, and fixes.
Book a demo