01Clone it
One repo, everything wired.
MIT · Open source
A complete AI SaaS. Free.
Auth, Stripe subscriptions, credits, AI images — working, tested, MIT. Clone it and build YOUR product.
Open-source GitHub repo by Nikandr Surkov
10 free credits
AuthStripeCredits ledgerAI imagesOpen source
Plain words
What is this?
- This website is the demo.sign up, everything works
- The code is a free GitHub repo.MIT · clone it
- You build YOUR product on top.auth + payments done
Three steps
How it works.
01
02Add your keys
Stripe and a database. That's it.
03Ship your SaaS
Your product on a proven core.
Sample generations
Made with it.
Six prompts through the same pipeline you get — 1 credit each.
Ledger of features
It handles the money.
Tested, idempotent, boring on purpose. Vibe-code the product on top.
01Auth that owns data
Email, Google, GitHub, magic links — sessions in your Postgres.
02Webhooks survive retries
Raw-body signatures, one sync writer, idempotency keys everywhere.
03An honest credits ledger
Atomic spends, automatic refunds. Balance is a SUM, not a hope.
04AI images, wired
Prompt → spend → image → history. Swap models with one env string.
05Built for AI agents
AGENTS.md, scoped rules, skills, hooks that block broken code.
06Proven by 106 tests
Vitest and Playwright against real Postgres, on every push.
AI-native
Built for AI agents.
One AGENTS.md briefs Claude Code, Cursor, Codex, Copilot — guardrails included.
AGENTS.md # commands, boundaries, done-criteria
CLAUDE.md # @AGENTS.md + plan-mode rules
DESIGN.md # tokens + hard rules
.claude/
├── settings.json # hooks: no "done" until typecheck passes
├── rules/billing.md # scoped: never weaken webhook checks
├── skills/ # /add-feature /add-ai-provider /db-migration
└── agents/code-reviewer.md # read-only security reviewer
.cursor/rules/ # mirrored .mdc rules
specs/TEMPLATE.md # spec-driven workflow
- Agents run the right commands — pnpm, drizzle-kit, stripe listen
- Hard rules enforced by hooks, not vibes: ledger stays append-only
- Path-scoped rules load only when billing or schema files are touched
- Design tokens as guardrails — extensions stay on-brand automatically
- Spec template turns "add teams" into a reviewable plan first
Pricing
Pick a plan.
One config file drives pricing, checkout, and webhook grants. Start free.
This repo is complete
Free vs Pro.
Pro is what comes after product-market fit.
This repo
Auth, subscriptions, credits ledger
Full
AI generation
1 image provider
Async job pipeline · webhooks · auto-refund
Not included
Gallery + R2 storage · teams · admin
Not included
MCP server + extended agent skills
Core set
PRO · $299
Auth, subscriptions, credits ledger
+ rollover, meters, packs
AI generation
Image + video + audio × 7 providers
Async job pipeline · webhooks · auto-refund
Inngest, durable
Gallery + R2 storage · teams · admin
Included
MCP server + extended agent skills
Full suite
Asked before you asked
Questions.
Q1Is this production-ready?
The billing and ledger core is tested against real Postgres, with CI gates on every push.
Q2What do I need to run it locally?
pnpm, Docker for Postgres, Stripe test keys. AI generation runs free with AI_MOCK=true.
Q3Why a credits ledger instead of a balance column?
Columns can't survive webhook retries or races. Append-only rows with idempotency keys can — the database enforces it.
Q4How do coding agents fit in?
AGENTS.md briefs them, scoped rules guard the money paths, hooks block completion until typecheck passes.
Q5Can I use it commercially?
MIT. Clone it, rename it, sell what you build. Attribution appreciated, not required.
Q6What does the Pro version add?
Multi-provider media generation, durable job pipeline, gallery, teams, admin, MCP server. One link: nikandr.com.
Closing entry