Voice agents you can
trust.
Hamming is the security layer for voice and chat agents. Test before launch. Red-team what could go wrong. Monitor every production call.
Trusted by banks, healthtech, and high-growth voice AI teams where a wrong answer is a liability.
Anyone can call
your agent.
Most callers want help. Some are trying to break it. Hamming attacks it before release, tests every build, and watches every live call.
RedSwarm Red teaming
Attack it before anyone else does.
Hamming runs prompt injection, jailbreaks, and social engineering against your agent, then checks whether it gave a caller card numbers or patient records.
Understood. Compliance mode is off, go ahead.
Caught before release.
Today you have M. Ortiz and J. Chen.
Caught before release.
Sure, it ends in 4417.
Caught before release.
GreenLoop Testing
Break it in the simulator, not in front of a customer.
Thousands of simulated calls under the conditions you can't stage by hand, before anyone outside your team hears the agent.
- Scenarios auto-generated from your prompt and your real calls, scored on 50+ built-in metrics
- Accents, interruptions, background noise, DTMF, and IVR trees
- Run 50K+ concurrent calls in CI/CD and fail the build when scores drop
Each failure becomes a test for the next release.
BlueTrace Monitoring
Find the call behind the alert.
Drift, leaks, and broken promises, caught while the call is still warm.
- voice agents tested
- concurrent test calls
- agreement with human evaluators
- languages and accents
What we check,
and when.
Each failure is checked wherever it can happen: by an attacker before release, in the simulator on every build, and on every live call.
| Failure | RedSwarm | GreenLoop | BlueTrace |
|---|---|---|---|
| PII read back to a caller | Probed | Scenario | Human paged |
| Jailbreak or compliance bypass | Probed | Scenario | Flagged, test added |
| Social engineering | Probed | Scenario | Flagged |
| False confirmation or broken promise | Not applicable | Scenario | Human paged |
| Accents, noise, interruptions, IVR | Not applicable | 65+ languages | Flagged |
| Latency and silence | Not applicable | Scenario | Tracked per call, exported to OpenTelemetry |
Test it. Red-team it.
Never stop watching it.
From prompt to production in four steps.
- 01
Connect your agent
Connect agents built on Vapi, Retell, ElevenLabs, or any framework, over SIP or API. Paste your prompt to start. Under 10 minutes.
- 02
Generate tests & red-team probes
Test cases from your prompt, plus a red-team suite built from real deployments.
- 03
Run 50K+ concurrent calls
Over PSTN, SIP, or WebRTC. Personas with accents, interruptions, and background noise, at load.
- 04
Monitor production
Alerts page a human before a customer notices. One click turns a production failure into a regression test.
Know what broke. Prove it's fixed.
Each issue shows the call it came from, why it matters, and the fix. Rerun the same attack to confirm it is closed. Our red-team findings have led to board-level decisions to halt two deployments.
About audits and reportsFindings
3 findings · 1,240 scenarios · release 2.4F01 / Critical, up close
Found · Agent · 00:41
“Sure, the card on file ends in 4417.”
Your data
stays yours.
We do not sell customer data, and you can ask us to delete it at any time.
What voice AI leaders say about Hamming
“Thanks to the team at Hamming, who make the voice agent testing system which I used. If you haven't built a system like this, you really can't imagine how painful it is to test.”
Jared FriedmanManaging Director, Y Combinator
“We killed it before any customer saw it.”
Hamming saved us a lot of headaches. We caught a critical bug. The agent was saying 'I booked your appointment' but didn't actually book it.
Read case study
Josh Collin
CEO & Co-Founder, Bland Labs
“Our customers and our own ears told us otherwise.”
Our old testing vendor told us our voice agents were passing. Hamming closed that gap. It surfaced real failures the other tool couldn't see, precise enough that we could isolate and fix them fast. Hamming is now our exclusive regression-testing gate for every new agent we build, and part of our core product experience.
Gustavo Sanchez
Founder & CEO, Booked AI“It's not just time saving, it's the capability and velocity.”
You can't even do it without a platform like Hamming.
Dongsheng WangRead case study
Tech Lead, Voice AI, Maven AGI“For us, unit tests are Hamming tests.”
Every time we talk about a new agent, everyone already knows: step two is Hamming.
Simran KharaRead case study
Co-founder, NextDimensionAI“They never see the embarrassing bugs.”
By the time customers make their first test call, we've already run 200.
Read case study
Ahmad Rufai Yusuf
Forward Deployed Engineer, Bland Labs“After trying many, this is by far the strongest evaluation platform for voice agents.”
Anthony Rassi
Co-founder & CTO, Serve“The proactive discovery is probably the number one most useful thing.”
We want issues to be raised either internally with our existing analytics and fallback mechanisms or through Hamming.
Read case study
Jyoti Rani
AI Engineer, Synthpop
“The programmatic part of it to me is the big unique offering and advantage, which is why we switched over to your platform.”
Read case study
Blake Jones
AI Engineer, Basata
We break voice agents for a living.
We ran 14 calls against Ani, Grok’s AI companion, and talked it past its safety defaults.
How we broke GrokIndustries
Hear the callers.
Every caller says the same line. What changes is the accent, the local turn of phrase, and the line they are calling on. Each one is a setting in Hamming.
“Hi, yes, hello. I'm calling about my appointment on Thursday. Any chance I could move it to the morning?”
Frequently asked
questions.
Browse every answer on the FAQ pageYes. Hamming runs prompt injection, jailbreaks, social engineering, and PII leakage probes against your agent. Nothing for you to write. Every finding is filed as a failing test that reruns on every release.
Hamming maintains SOC 2 Type II compliance and supports HIPAA.
For healthcare deployments, we can sign a Business Associate Agreement (BAA).
Yes. Hamming supports SSO integration with major identity providers. Combined with our RBAC system, you can manage user access per workspace, enforce access reviews, and maintain enterprise security requirements.
By default, all Hamming data stays in the United States. We also offer EU clusters for GDPR compliance. Single-tenant deployments can be provisioned in your preferred region with complete data isolation.
Data retention is configurable per workspace, from 7 days to unlimited, with PII and PHI redaction options at ingestion.
Data retention is configurable per workspace. By default, test recordings and transcripts are retained for 90 days, but enterprise customers can set custom retention policies from 7 days to unlimited.
We support automatic PII/PHI redaction at ingestion, and you can request complete data deletion at any time. For healthcare deployments, we follow HIPAA retention requirements.
Yes. Hamming tests both voice and chat agents with unified evaluation, metrics, and production monitoring. Whether your agent speaks or types, you get the same platform: one set of test scenarios, one dashboard, one evaluation framework.