Keelnest watches your app’s payments, releases and running costs — and when something breaks, explains why in plain English and hands you the fix: a pull request to approve, or a prompt for your builder.
Made for apps built with
Keelnest reads from Stripe, Supabase, Vercel, Netlify, Cloudflare, OpenAI, Anthropic, Sentry and GitHub.
After launch
The site answers. The status page is green. And nobody can pay. Keelnest is built to catch exactly these.
Browse every failure and its fixCheckout reaches the pay step and stalls, or orders never show as paid — and it started right after a publish.
Revenue Guard · within a couple of hoursThe fixYou moved to a custom domain. Existing sessions still work; new sign-ins fail after the magic link or the OAuth redirect, with “redirect_to is not allowed”.
Publish Verification · within five minutesThe fixPeople sign up, the site says “check your inbox”, and nothing comes — for some of them or for all of them. Password resets and magic links go the same way.
Backend Guard · every checkThe fixToken usage for an hour is four to six times what that hour normally sees. Nothing is failing.
Cost Guard · hourlyThe fixThe guards
Money, releases and running costs — watched against your app’s own history, explained in plain English, and never touched.
Every hour of payments against the same hour of your own week, so a checkout that stops taking money is noticed while it still matters — with the evidence and the estimate side by side.
Within five minutes of every publish, the journeys your customers rely on are walked in a real browser and the configuration is read. You see what passed, what failed, and what changed.
c3a91f7 · Verdant ShopAI usage and hosting against a budget you set per app, read every hour — a runaway loop is noticed in hours, not on next month's invoice.
Supabase health, read-only mode and its security advisors — and whether your sign-up and password-reset emails can actually arrive.
Illustrative. The built-in mailer is Supabase’s development sender, capped at a few emails an hour.
Every branch and pull-request preview on Vercel and Netlify gets the site check and the app's journeys — so a broken checkout is caught while it is still a branch.
Illustrative branches. A preview never opens an incident: it is not your customers’ site.
Every five minutes, on every plan.
HTTP, SSL and security headers, never metered — and a 404 or a 401 explained in the words your visitor would use.
From alert to fix
Every alert says what happened, what it costs and the evidence. A code fix arrives as a pull request, checked on a preview and merged only when you approve; a setting comes with steps and a prompt for your builder.
Sample alerts from the demo workspace. Nothing here is connected to a live account.
The publish on 9 September removed the Stripe webhook secret. Stripe could not verify its messages, retried for three days, then turned the endpoint off this morning. Orders now stop at the payment step because the app waits for a confirmation that never arrives.
The evidence
First step. Approve the prepared fix (restores the secret and adds a clearer error), then re-enable the endpoint in Stripe > Developers > Webhooks.
PR #212 · keelnest/fix-inc-20413 files · +28 −2
Checked on the Vercel preview
High risk · touches the payments path
In my Lovable project, the Stripe webhook secret is missing from the production environment. Add STRIPE_WEBHOOK_SECRET back to the Vercel production env vars and make the /api/stripe/webhook route return a clear 400 with the message 'webhook secret not configured' when it is missing, instead of failing silently.
After you approve
How it works
Start with your app’s address. Connect what you use, choose what matters, and get back to building.
Add the address you already ship to. Uptime, SSL and headers are watched from the first minute.
Link Stripe, Supabase and your host, read-only wherever the provider allows it. Keelnest only ever reads with them.
Choose the paths your customers depend on — signing in, reaching checkout — and they are walked in a real browser.
Every publish is verified within five minutes. You hear from Keelnest only when something needs you — and the fix comes with it.
Trust
Keelnest reads what it needs and changes nothing on its own. Here is exactly what that means for the keys you connect.
How we handle your dataA fix arrives as a pull request on a branch of its own, checked on a preview where your host builds one. Nothing reaches your live app until you approve it.
Stripe restricted keys, read scopes over OAuth, admin and management keys used only to read usage, cost and, after a leak, your key list. Keelnest never edits a setting or an environment variable, or runs a migration.
Every credential is encrypted at rest and can be revoked at the provider whenever you like.
No refunds, charges or price changes, ever. A payment journey stops before the pay step, and Keelnest stores no test card.
For agencies
You look after the client. Keelnest looks after their apps — the whole portfolio in view, and a report each month that carries your name.
Verdant Goods · August 2026
Pricing
Your first app has a home here for free. Choose more coverage as your apps, your ambition or your team grow.
Try it on one app
No card needed
1 app · weekly + after publish
Start freeOne live app that takes payments
Billed monthly
1 app · hourly + after publish
Start with SoloSmall agency, white-label
Billed monthly
20 apps · every 15 min + after publish
Start with StudioAlready live?
Data exposure, money flow and reliability basics — in a few seconds, without an account. Then keep it watched, free for your first app.
Passive checks only, on sites you own or are authorised to test.
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