Skip to content
BuildThenTestedSee packages

Ready-to-charge check

For anyone about to switch Stripe to live mode.

We test everything between the pay button and the money. That means webhook signature checks, whether plan and price can be changed from the browser, whether a subscription state can be faked, duplicate charges on retries, and test keys left in production. We also measure how much your AI features can spend without a cap. Report and fix directions in 48 hours.

$390

Report in 48 hoursOrder by email

We reply within 24 hours. Payment details follow by email.

Who this is for

You are about to take money for the first time, or you already do and have never had someone try to pay less than the price, upgrade without paying, or run up your OpenAI bill.

Works for one-off payments and subscriptions on Stripe, and for apps whose features call a language model on your account.

Built for anyone about to take payments.

What we check

Payments, auth, AI-feature spend and secrets: the four categories a paying customer or a bargain hunter will touch.

Payments

Everything between the pay button and the money arriving.

5 checks

Login and permissions

How the app knows who you are and what you are allowed to do.

7 checks

AI features

Calls to a language model inside the app, and what they can trigger.

5 checks

Secrets and keys

API keys and passwords the app uses to talk to other services.

5 checks

Why these checks: seen in public

Two days after announcing a SaaS built with Cursor and no hand-written code, its founder reported subscription bypasses, maxed-out API keys and unwanted database writes; he shut the app down three days later.

Mar 2025 · Leo (Enrichlead founder) · all sources

Apiiro's analysis of repositories at Fortune 50 companies found AI-assisted developers produced 3 to 4 times more commits and 10 times more security findings, with privilege escalation paths up 322%.

Sep 2025 · Apiiro · all sources

Each incident links to the pattern and the self-check you can run today, in the evidence list.

What you receive

  1. 01Payment flow test report: webhooks, plan enforcement, idempotency, test-vs-live keys
  2. 02API and model spend exposure check
  3. 03Fix direction for every finding
  4. 04Re-check after fixes, within 14 days, included

See a full sample report (synthetic, fictional app) for the exact format.

How it works

  1. Step 1

    Share access

    Send the app URL and a test login by email. For code review packages, add read access to the repository.

  2. Step 2

    We test

    We run the checklist for your package against the live app, by hand and with scripts, inside the turnaround.

  3. Step 3

    Report and call

    You receive the findings report and a plain-English summary. We walk you through it if the package includes a call.

  4. Step 4

    Re-check after fixes

    Fix with your developer or your AI tool, then we re-test the critical findings within the re-check window, included.

Findings describe what we observed on the version you gave us access to, on the date of testing. Changes after that date are not covered until re-checked.

Questions about the ready-to-charge check

ready to take payments checklist app

Before live mode, six things need to be true. The webhook signature is verified on the server. Price and plan come from your own database rather than the browser. Subscription status is read from Stripe events rather than local storage. Payment handlers use idempotency keys. Live keys exist only in server environment variables. Any model API has a spend cap. The ready-to-charge check tests each of these.

can someone bypass my paywall

Often, if the plan check runs only in the browser or the price is sent from the client. We try both against your app with a free test account and report exactly which request lets a user through, plus how to move the check to the server.

how do i test my stripe webhook signature verification

Send a webhook with a wrong or missing signature and confirm your handler rejects it, then replay a valid one and confirm nothing is charged or upgraded twice. We run both tests and report the result with the request and response.

Order the ready-to-charge check

$390, report in 48 hours. The email opens with a short template: app URL, builder, stack, what you want checked.

Order by email

Other packages: Pre-launch check ($490), Security sweep ($290), Full audit ($1,900). Compare all.