web application security testing service
The security testing service
that keeps up with you.
A web application security testing service that runs continuously, not once a year. Proven exploits with the fix, from $49 a month with the compliance report included.
free to start · no sales call · first exploits in ~10 min
the request that worked
GET /api/orgs/42/invoices Authorization: Bearer <user in org 7> → 200 OK reads another tenant's invoices
Broken tenant isolation (IDOR). Any user can read any org's billing data.
Scope the query to the caller's org in withOrg() before the invoice lookup.
what the service includes
What you actually get.
- ✓Continuous testing on every deploy, not a point-in-time snapshot
- ✓Proven exploits with the exact request, the impact, and the fix
- ✓Compliance-ready evidence included, not a four-figure add-on
- ✓Unlimited retests after you ship the fix
- ✓No scoping call, no scheduling, no sales conversation before you see results
service vs service
How this compares to a traditional service.
| Traditional service | Muster. | |
|---|---|---|
| How it works | You book an engagement, wait for scheduling, get a PDF | You point it at your app, running in ~2 minutes, findings in ~10 |
| What a finding is | A severity score in a report | A replayed exploit with the exact request and the one-line fix |
| Cadence | Once or twice a year | Continuous, on every deploy |
| Retests | Re-scoped and re-billed each round | Unlimited, included |
| Compliance | $4k+ add-on | SOC 2 / ISO 27001 evidence included |
| Price | $15k-$30k per engagement | From $49/mo, listed on the page |
Web application security testing service, answered.
+What is a web application security testing service?
A service that tests your running web app for exploitable vulnerabilities. Muster runs it continuously: AI agents attack your live app like a real intruder, prove what is exploitable, and hand you the fix. Not a scanner, not a once-a-year engagement.
+How is this different from a manual pentest service?
A manual service books an engagement, schedules it, and delivers a report weeks later. Muster runs continuously on every deploy, proves each exploit with the exact request, and hands you the fix. The compliance report is included, not an add-on.
+Can I use this for SOC 2 or ISO 27001?
Yes. The compliance-ready evidence is included at no extra charge, and the attested report is available when an auditor asks. A sample report is on the site before you buy.
+How fast do I get results?
First proven findings in about ten minutes. Free to start, no scoping call.
+What does it cost?
From $49/mo for a single asset, $249/mo for teams, $999/mo for a larger surface. Unlimited retests, compliance report included. Pricing is on the page.