Test your voice agent
before your users do.
- Setup
- Testing in under 10 minutes
- Support
- A direct Slack channel with the founders
- YC companies
- A special deal
Hamming works with
All integrations
Your first test run
in under 10 minutes.
One quick call to get started. No implementation project, no waiting.
- 01
Connect your voice agent
Add your API key from LiveKit, Pipecat, ElevenLabs, Retell, Vapi, or Bland and your agents sync automatically. Pipecat agents can also connect directly over Daily WebRTC. - 02
Generate scenarios from your prompt
Paste your agent's system prompt and Hamming generates hundreds of test scenarios: happy paths, edge cases, accents, interruptions, background noise, and adversarial inputs. No test cases to write by hand. - 03
Run tests in parallel
Run hundreds of tests at once with simulated accents, background noise, and interruptions, and see results in minutes. - 04
Debug with audio-native evaluation
Evaluators listen to the audio itself, so they catch tone, hesitation, interruptions, and timing problems that transcript-only tools miss. You see why the agent failed, not only that it did.
Why buy voice agent testing instead of building it.
Testing as a sales tool.
What startups
test first.
Happy paths
Check the common calls work, like bookings, inquiries, and transfers, before users make them.Edge cases
Interruptions, silence, fast speakers, elderly callers, background noise, and unexpected input.Accents and languages
Indian, British, Southern US, Australian, and many more accents.Prompt regressions
Run your suite on every PR to catch the prompt change that broke something.Tool calls
The right tool, with the right parameters, and a graceful recovery when the tool fails.Latency
Time to first word, response times, and interruption handling across every run.
Trusted by quality-obsessed
startups.
Three voice AI startups that test before their customers do.
- NextDimensionAIRead case study
- production reliability
- 99%
- latency reduction
- 40%
- concurrent test calls
- 200+
- BasataRead case study
- faster testing cycles
- 6x
- less manual testing time
- 83%
- full test suite run
- 15 min
- Bland LabsRead case study
- pre-deployment tests
- 200+
- testing time
- hours to minutes
- faster deployments
- 3x
Startup
questions.
Browse every answer on the FAQ pageYC alumni get 50% off our Growth plan for the first 6 months, plus:
- Premium support via a dedicated Slack channel
- White-glove onboarding
- Six 1:1 AI voice agent debugging workshops
- Early access to new features
- Direct access to the CEO's phone number
- 100% money-back guarantee (within the first two months)
Current batch companies get 75% off for the first 6 months, plus fundraising workshops.
Email sumanyu@hamming.ai with the title "YC Deal" after creating an account on app.hamming.ai.
Just a quick call to set up your account, then you're off and running. We'll get you set up, answer any questions, and you can run your first test in under 10 minutes.
Import your agent from LiveKit, Pipecat, ElevenLabs, Retell, Vapi, or Bland using your API key. We auto-generate test scenarios from your agent's prompt.
Under 10 minutes. Connect your voice platform with an API key, select an agent, and we auto-generate test scenarios. Click "Run" and watch your agent handle dozens of simulated calls in parallel.
Most teams find their first bugs within the first hour of using Hamming, issues they would never catch with manual testing.
Hamming works with any SIP-capable voice agent. If you're not using LiveKit, Pipecat, ElevenLabs, Retell, Vapi, or Bland, you can connect via SIP trunk or direct WebRTC. We also support custom integrations via our API.
Building on Pipecat? We integrate directly with Pipecat agents via Daily WebRTC, no phone number required.
You could, and many teams try. But building voice testing infrastructure means: managing telephony, creating realistic voice personas, building LLM-based evaluation, handling concurrent calls, and maintaining it all.
Most teams spend months building a basic solution that still lacks accents, background noise, and reliable evaluation. Hamming gives you all of this in under 10 minutes, so your engineers stay on your product.
Manual QA catches maybe 10 to 20 scenarios before you ship. Hamming runs hundreds of scenarios in parallel with different accents, speaking styles, and edge cases, in the time it takes to make one manual call.
More importantly, Hamming catches the weird edge cases humans forget to test: interruptions, background noise, elderly callers, fast speakers, and adversarial inputs.