What it sells
Voice AI and Chat AI agents: Testing and Observability
Business model breakdown
Buyer: who owns the budget?
UnverifiedEngineering or product leads at teams building voice and chat AI agents (healthcare voice-agent companies such as Kastle, Twin Health, Confido Health quoted).
Trigger: what makes them buy now?
Shipping a voice agent to production and needing to avoid regressions, or migrating the voice stack (e.g. switching providers) with zero regression on key workflows.
Workflow: what inputs become what output?
Generate synthetic test conversations and scenarios, simulate them pre-production, red-team for jailbreaks/PII leaks, then monitor live calls for drift, flag failures, reproduce in simulation, patch prompts and re-run gates.
Economics: what it saves and how it charges
Usage-based credits plus seats and a monthly plan: $0.25 per voice testing minute and $0.05 per monitored call on pay-as-you-go; $500/month plan includes about 2,000 test minutes and 10,000 monitored calls.
Distribution: how it reaches customers
Self-serve signup with free trial and no card required, plus demo-led enterprise sales; partner integrations with Vapi, Retell, ElevenLabs, LiveKit, Pipecat, Cisco and Deloitte.
Funding history and coverage
| Round date | Stage | Amount | Investors | Source |
|---|---|---|---|---|
| — | Y Combinator Fall 2024 | — | Y Combinator | ycombinator.com |
Profiles summarize public reporting and company websites. Business-model notes are MaxBC's reading of that material, not confirmed facts; unknowns are left blank rather than guessed. Updated 2026-10-12.