Stack Start is the infrastructure layer between your AI agent and the services it needs to build. Connect your provider accounts once, get one key that resolves to your entire stack across dev, staging, and production, and let your agent start building immediately.
Agents got 10x faster. The infrastructure underneath them did not move. Here is the first hour, before and after.
.env, Cursor, Vercel, CI. Each one. As tradition demands.Pick a stack we've already vetted (Starter, SaaS, Agent Native) or build your own from 23 services we believe in. No infinite menu. No paradox of choice.
Click connect on each provider. We sign in on your behalf, build the resources, warm the senders, hand back one master key. Takes longer to describe than to do.
Two lines in your editor. Your agent reads the key, asks for the environment it needs, gets a full bundle. The thing nobody designed an onboarding flow for.
Same key, three environments. Your code reads STACKSTART_ENV and gets back exactly the credentials that match. Dev one minute, staging the next, prod when you push the button. No more three .env files. No more asking which one you committed.
Nobody opens Cursor hoping to wire six dashboards. Pick a stack, mint a key, paste two lines. Your agent reads the key and starts on the product. The boring part of the project is, technically, the part you skipped.
.env filesA PaaS runs your code on its boxes. We don't want your code. We provision the services you already want, on your own accounts, and hand you one key. The day you outgrow us (we hope you do), your stack keeps running. Nothing to migrate.
A vault is a vault. You still sign up at every provider, click through every wizard, paste every key in. We do that part for you, then derive scoped keys per environment on top. The secrets are managed even though, technically, you never had to look at them.
IAM is one cloud. Real teams use Neon and Vercel and Sentry and Clerk and four other things in a tab nobody can find. We give you one revoke button that reaches all of them, one audit log to hand the auditor, one set of scoped keys. The next time someone leaves, you press one button and go to lunch.
Combinations we'd ship our own product on. You pay each provider directly, on your own accounts. The only thing you pay us for is stack start. No markup, no resold capacity, no surprise.
Start from a blank canvas. Pick any service à la carte, swap freely. Keep the key. We re-wire underneath.
Browse 23 services →One master key. Paste it once. Your agent reads it, resolves every credential it needs, and goes to work. You go to lunch.