Your agent can write code.It can't ship a SaaS.
Foundry is a Next.js starter with auth, Stripe billing, multi-tenancy, and row-level security already built and already reviewed. Then it wires your coding agent into Supabase, Stripe, Vercel, and Sentry, so it stops guessing and starts building your product.
The proven tools you already reach for
One thing here matters more than the rest.
Plenty of boilerplates give you auth and billing. This is the part that changes how the work actually feels.
Your agent gets wired into your services, not just your files.
Most kits hand your agent a README and hope. Foundry ships CLAUDE.md, AGENTS.md, and 11 MCP-aware slash commands that reach Supabase, Stripe, Vercel, and Sentry directly. Your agent reads your real schema, creates real tables, inspects real production errors, and deploys. You stop re-explaining your own codebase at the start of every session.
Auth out of the box
Stripe billing, pre-wired
Multi-tenancy & orgs
Row-level security
Transactional email
Rate limiting
Error tracking
Type-safe everywhere
Production security
Three steps to a wired-up project.
Foundry isn't just documented, it's connected. Your agent reaches every service you have configured instead of reading about them.
Clone & configure
git clone your tier. Copy .env.example, drop in your Supabase, Stripe, and Resend keys. Every variable is documented. No hunting through the code.
Takes about 10 minutes.
Run /setup-agents
One slash command audits all your integrations. Claude Code (or Cursor, or Codex) connects to Supabase, Stripe, Sentry, and Vercel via MCP. Your agent knows your schema, your products, your deployment.
Your AI agent is now wired in.
Build your product
Add a database table: /add-table. Add an API route: /add-route. Add a Stripe product: /add-stripe-product. All MCP-aware: your agent makes the changes, not you.
Ship on Friday. Iterate on Saturday.
$ ▌
Open the box before you buy it.
Most kits ask you to take the feature list on faith. Here is the exact inventory instead, by name and by count, so you know precisely what lands in your repo.
Type these into Claude Code, Cursor, or Codex. They are not documentation about your integrations, they reach them. /add-table writes the migration, applies it to your Supabase project, and regenerates your types.
What this costs you to build yourself.
Not the fun part of your product. The part every SaaS needs and nobody wants to write twice.
| Component | Build it | With Foundry |
|---|---|---|
| Auth: email, OAuth, magic links, sessions | 1–2 weeks | Included |
| Stripe subscriptions, one-time, webhooks, portal | 1–2 weeks | Included |
| Multi-tenant orgs, invitations, workspaces | 2–4 weeks | Included |
| Role-based permissions and RLS on every table | 1–2 weeks | Included |
| Transactional email with typed templates | 3–5 days | Included |
| Rate limiting on every API route | 2–4 days | Included |
| Error tracking across client, server, and edge | 2–3 days | Included |
| Production security review and hardening | 1–2 weeks | Included |
| Agent context files and MCP wiring | 1–2 weeks | Included |
8–14 weeks
$9,000–$18,000
$79–$149
More in the box. Less on the invoice.
Every kit here gets you a Next.js app. Only one of them wires your coding agent into the services that app depends on.
| Foundry | ShipFast | Shipixen | Divjoy | |
|---|---|---|---|---|
| Entry price | ||||
| Full-featured price | ||||
| Agent commands that reach your live services | No | No | No | |
| Agent context files in repo | Yes | No | No | No |
| Agent can create tables and apply migrations | Yes | No | No | No |
| Authentication built in | Yes | Yes | No | Yes |
| Stripe billing wired end to end | Yes | Yes | No | Yes |
| Multi-tenant orgs and teams | Yes | No | No | No |
| Row-level security on every table | Yes | No | No | No |
| Role-based permissions | Yes | No | No | No |
| Security audit framework included | Yes | No | No | No |
| Typed Supabase schema generation | Yes | No | No | No |
| One-time payment, lifetime updates | Yes | Yes | Yes | Yes |
| Unlimited projects | Yes | Yes | Yes | Yes |
| You own all the code | Yes | Yes | Yes | Yes |
Less than a day of the work it replaces.
One payment, lifetime updates, unlimited projects. No subscription, no seat fees. The comparable kits start at $199.
Foundry Starter
For solo builders and MVPs. Full-stack SaaS foundation with personal accounts and billing.
Foundry Pro
For B2B SaaS, team products, and multi-tenant apps. Everything in Starter, plus orgs, RBAC, and full RLS.
I built Foundry because I kept building it anyway.
I ship a lot of products. Every one of them started the same way: three days wiring up auth, Stripe webhooks, row-level security, and email before I got anywhere near the thing I actually wanted to build. Then I would do it again a month later, slightly differently, having forgotten how I did it the first time.
What pushed me over was watching my coding agent re-litigate the same decisions on every project. It could write the code, but it had no idea what my schema looked like, which Stripe products existed, or what was already deployed. So I spent the first hour of every session explaining my own codebase to it.
Foundry is what I extracted. The boilerplate is the obvious part. The part I actually care about is that your agent gets wired into Supabase, Stripe, Vercel, and Sentry on the first command, and stops guessing.
I use this on my own products. When something breaks in it, I feel it before you do, and I fix it because I need it fixed too.
Manny, builder of Foundry. support@getfoundry.dev reaches me directly.
The questions that actually stop people.
If you have something we haven't covered, email us. We respond fast.
Stop configuring.
Start shipping.
Every weekend you spend on setup is a weekend you didn't spend on your product. Foundry gives you the foundation. You bring the idea.