ArgosX: independent security testing for AI-built apps

Application Security Assessment

The security letter that unblocks your enterprise deal

A fixed-price, independent security test of your live app, verified by a human tester, delivered in 5 business days with a signed attestation letter you can attach to a customer’s security questionnaire. Built for SaaS founders who shipped fast with AI and now have a security review standing between them and a signed contract.

If your client’s reviewer requires an approved pen-test firm, the fee is credited toward a partner-led pen test.

Not sure what a review will flag on your app? See the five findings that stall enterprise security reviews, and how to pass.

You are in the right place if

An enterprise customer sent a security questionnaire

The deal is moving until the vendor review asks about independent security testing. A blank answer stalls it; a pentest commonly quoted at $4,000 to $8,000+ with a multi-week queue stalls it longer.

Your auditor or compliance platform wants testing evidence

SOC 2 reviews and compliance platforms routinely expect recent independent testing of the application. You need a credible, dated artifact, not a marketing badge.

You built fast with AI and you are the one on the hook

The app works and customers are on it. What you cannot produce is independent evidence that one customer cannot read another customer's data. That is precisely what we test and attest.

What you get

The signed attestation letter

A one-page, signed letter stating what was tested, how, when, and the outcome, written to be attached to a vendor security questionnaire or shared with a customer's security reviewer. It is written for exactly that reader: it names its scope and method plainly, the thing security reviewers look for.

The full technical report

Every confirmed finding with evidence (the exact request and a screenshot of what came back), severity graded by real impact, and a plain-English fix for each. No false-positive dump: a human tester verifies the findings before you see them.

A re-test, included

Fix what we found, and we test again at no charge. The letter then states that issues were remediated and re-verified, which is the sentence a security reviewer is actually looking for.

Inside the technical report: every confirmed finding carries its class, the exact endpoint, the proof we reproduced, and a plain-English fix.

The price

$990Founding price for our first five clients. One app, the roles you define, report and signed letter in 5 business days, re-test after fixes included. Compare: a traditional agency test for the same scope is commonly quoted at $4,000 to $8,000+ with a multi-week queue.

$990 founding price for our first five clients, in exchange for a testimonial and permission to name your company as a customer. Mention it on the scoping call.

Bought a $249 Human-Verified scan in the last 30 days? It is credited toward the assessment.

Verified Monitor, $249/month. Available after an assessment. A monthly authenticated rescan, a retest of your prior findings, and a refreshed letter every quarter.

If your client’s reviewer requires an approved pen-test firm, the fee is credited toward a partner-led pen test.

Our guarantee

If your client’s reviewer requires an approved pen-test firm, the fee is credited toward a partner-led pen test. The letter is honest about scope and methodology, and we would rather point you to the right test than have you pay twice.

How it works

  1. A 15-minute scoping call (or email thread): your app URL, the roles and test accounts you provide, and your deadline.
  2. We test your live, deployed app for 2 to 3 days: the automated battery plus an authenticated pass that signs in with your test accounts and attempts real cross-account access, then a human tester verifies every finding that matters.
  3. You get the report and the letter within 5 business days of scoping. Fix anything found, and the included re-test updates the letter to remediated and re-verified.

The full testing approach, including how findings are confirmed with evidence and graded, is documented on our methodology page. Every letter can be authenticity-checked online by the person you hand it to.

Scope, stated plainly

What we test

  • Anonymous database exposure: whether your backend answers to someone with no login at all
  • Cross-account access: whether one signed-in user can read another user's private data, tested with two real accounts
  • Authentication and session handling: expiry, missing checks on privileged actions, role boundaries you define
  • Secrets and keys shipped to the browser
  • Transport, headers, CORS, and the exposure surface an outside attacker actually reaches

What we do not

  • Your cloud infrastructure, internal network, or employee devices
  • Source-code review of private repositories and your dependency tree
  • Social engineering, phishing, or physical testing
  • Denial-of-service or load testing
  • Admin roles, password reset and account recovery
  • Hard login types (SSO, magic link, one-time codes) and mobile apps
  • Rate limits and race conditions
  • Accredited compliance certification (we attest to our own independent testing; we are not an accredited audit body, and the letter says so)

The letter carries this scope statement verbatim. A security reviewer trusts an artifact that says what it did not cover; an artifact that implies everything was covered gets questioned. For the reviewer on the other side: every testing class is mapped to OWASP Top 10 and WSTG test IDs with CVSS 3.1 scoring on the coverage page.

Questions a careful buyer asks

Is this a penetration test?

No, and the letter never claims to be one. It is an independent application security test: automated dynamic testing of your live app plus a human verifier's pass. It is designed for the common vendor-review case; some enterprise programs require an accredited manual penetration test by name, and if yours does, we will tell you on the scoping call rather than sell you the wrong thing.

What if my customer's security team needs an approved pen-test firm?

If your client's reviewer requires an approved pen-test firm, the fee is credited toward a partner-led pen test, so you are not paying twice. We will tell you on the scoping call if we think that is likely for your review.

Why not just run my platform's built-in security scan?

Because it is the builder grading its own homework, and a security reviewer knows it. Platform scans check your project from inside the builder. We independently test the running app from the outside, signed out and signed in, and we put our name on the result.

What do you need from me?

Your app's URL, two test accounts (so we can prove whether one user can reach another's data), and written authorization to test, which we send you as a one-page form. Nothing installs into your codebase.

How current does the letter stay?

The letter is dated, and reviewers care about recency. Verified Monitor ($249/month, available after an assessment) includes a monthly authenticated rescan, a retest of your prior findings, and a refreshed letter every quarter, so the answer to “when was your last test?” is always “within the last 90 days.”

Have a questionnaire deadline this week? Say so in the email and we will scope same-day.