Stripe Subscription Preflight

Automatically tests subscription flows for gaps before real users pay

Problem

SaaS founders often only check that Stripe Checkout succeeds, but skip testing whether access updates after payment, failed renewals, access removal after cancellation, duplicate or delayed webhooks, refunds, and cross-user access to paid accounts—discovering issues after launch.

Solution

An automated testing tool that uses Stripe test mode and a small code hook to simulate successful payment, failure, cancellation, upgrade, downgrade, refund, and duplicate webhook scenarios, verifies whether app permissions change correctly, and produces a readable issue report.

Users

Indie SaaS developers and small teams using Stripe subscriptions

MVP

Connect a Stripe test key; include 10 common subscription scenario checks; output a pass/fail list with fix suggestions; support one-line SDK integration for Node.js apps; generate shareable report links

Revenue

$15/month per project, or a one-time desktop license at $49

Why now

Stripe subscriptions are the default for indie monetization, most teams have no dedicated QA, and AI-generated code speeds up shipping while leaving testing gaps