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Mystra
A real browser tests signup and checkout after every deploy
After every deploy a real Chrome signs up on your app, waits for the welcome email, reaches Stripe Checkout without paying and checks the paid area. Alerts only with proof: screenshot, video, HAR. Nothing to write. Free to start.
Hi, I'm Daniel. I build SaaS products on evenings with Claude Code and Cursor and I ship several times a week without a test suite. Twice I found out from a customer that checkout had been broken for days. Uptime checks said everything was fine, because the homepage loaded.
Mystra is the thing I wanted instead. After every deploy it opens a real Chrome browser, signs up on your app with a fresh email address, waits for the welcome mail, clicks through to Stripe Checkout, reads the plan and price and stops without paying. Then it checks that the paid area is still closed to that new account. Every run ends with screenshots, a video, a HAR file and the console log.
It only alerts when it can prove a break: a failed request, a missing email, a paid page that opened for free. Flaky runs are held back. When the next run passes, the alert closes itself.
Setup is a domain, one DNS record or a meta tag, and a deploy hook. No Playwright, no test code. The first run starts while you are still on the setup page.
Two honest notes. It launched today, so the only apps it watches right now are mine, including Mystra itself: the status page is public and the link in the gallery is a real run from this week. And it is built for small SaaS with Stripe; if you run a marketplace or a custom payment flow it will not fit yet.
Free tier is one app and 25 runs a month, no card. Starter is $29, Pro is $79. I read every message, so ask me anything here.
About Mystra on Product Hunt
“A real browser tests signup and checkout after every deploy”
Mystra was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #145 on the daily leaderboard. After every deploy a real Chrome signs up on your app, waits for the welcome email, reaches Stripe Checkout without paying and checks the paid area. Alerts only with proof: screenshot, video, HAR. Nothing to write. Free to start.
On the analytics side, Mystra competes within Payments, SaaS and Developer Tools — topics that collectively have 576.1k followers on Product Hunt. The dashboard above tracks how Mystra performed against the three products that launched closest to it on the same day.
Who hunted Mystra?
Mystra was hunted by Daniel Necula. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Mystra including community comment highlights and product details, visit the product overview.
Daniel Necula