Auth
sign-in
email●●●●●●●
password●●●●●●●
Continue →
Sessions, organizations, invitations, OAuth — typed against whichever provider you bring.
- Better Auth
- Clerk
- Auth0
- Lucia
Getting started with DeesseJS
Your coding agent should ship from contracts, not from scratch.
DeesseJS is a registry of SaaS templates with the contracts already wired — auth, database, billing, jobs, storage. Your agent reads them, builds on them, and cannot break them.
Free · MIT · no vendor lock-in
Outcomes
Pick the outcome. Ship from the agent's view.
Each template is structured so an agent can navigate it like a developer would: typed files, named contracts, one MCP manifest per project.
Shipped
Ship a multi-tenant B2B app
SaaS Starter
- Next.js
- Better Auth
- Drizzle
- Stripe
Open the template
Coming soon
Ship an agent with a typed tool registry
AI Chatbot
- Next.js
- OpenAI
- Postgres
- MCP
Open the template
Coming soon
Ship a B2B landing page that converts
Landing Page
- Astro
- Tailwind
- shadcn
Open the template
Wired into every starter
Six contracts. Open stack. Typed end-to-end.
Each contract ships with a typed schema, an MCP server, and a CLI check. Pick the providers you already use; the contracts wire against them.
Better Auth
Clerk
Auth0
LuciaDatabase
$ drizzle-kit generate
✓ 4 schemas generated
$ drizzle-kit migrate
✓ 12 tables created
users · orgs · sessions · invoices ...
Drizzle schemas, migrations, typed queries. Postgres by default, swappable to any provider.
- Postgres
- Neon
- Supabase
- Vercel
- Drizzle
- Prisma
Postgres
Neon
Supabase
Vercel
Drizzle
PrismaBilling
Pro Plan$49/mo
74%
7,423 / 10,000MRR $1,127
Subscriptions, usage metering, webhooks. The shape your agent can already call.
- Stripe
- Resend
Stripe
ResendJobs
- email.send1.2s
- slack.notify1.1s
- db.write240ms
- webhook.dispatch80ms
Queues, retries, dead-letter handling. Async work that does not block the request path.
- Upstash
- Cloudflare
- Trigger.dev
- Inngest
Upstash
Cloudflare
Trigger.devStorage
- uploads/
- invoice-2024-q4.pdf4 MB
- avatar-3x.png240 KB
- export.zip12 MB
- + Upload
Object storage with signed URLs and presigned uploads. Drop-in S3-compatible.
- Supabase
- Cloudflare
Observability
- GET /checkout142ms
- ├auth.verify12ms
- ├fetch45ms
- ├db.query62ms
- └cache.set23ms
Logs, traces, metrics — the three signals that catch production issues.
- Sentry
- Better Stack
Sentry
Better StackCLI in action
Three commands. Zero config.
The CLI is the single entry point to the registry. It scaffolds a template, lists what is available, and tells you which contracts are wired against your project.
- init — scaffold a project from a template, with every contract wired.
- list — browse the registry and check what is shipped vs coming.
- info — verify the contracts in your project are present and in sync.
~/projects
$ npx deessejs init my-saas --template=saas-starterCloning template…
Installing contracts (auth, db, billing, jobs, storage, obs)
Wiring Better Auth + Drizzle + Stripe
✔ Project ready at ./my-saas$ npx deessejs listsaas-starter shipped Next.js · Better Auth · Drizzle · Stripe
ai-chatbot coming-soon
landing-page coming-soon$ npx deessejs info my-saas6 contracts wired · 0 missing · 0 outdated
MCP server: ready · 12 tools exposedWhy we build this
“If a template can't be navigated by a coding agent, it isn't done.”
DeesseJS is the main app of a small team building the templates, contracts, and tooling we wished existed when we shipped our last product.
Read the manifestoLearn by doing
All guidesRecent changes
All releasesManifesto
Why we ship templates an agent can read, instead of scaffolds only a developer can navigate.
Read the manifestoEcosystem
Software engineering as a commodity.
Agents that code, workflows that scale, infrastructure that works. Built with the DeesseJS ecosystem.
Errors
Structured error tracking
OpenDRPC
Durable RPC for agent workflows
OpenCollections
Type-safe data access
OpenFP
Functional primitives
OpenUI
Component library
OpenAdmin
Operator console
OpenCloud
Hosted runtime, coming soon
Open“We swapped three weeks of plumbing for a single `deessejs init`. The MCP layer is the part we wish we'd had a year ago.”
“The agents we ship can actually read the registry now. They navigate the contracts like a developer would — that's the unlock.”
Plays well with
Bring your own stack.
The contracts are swappable. Pick the providers you already trust — the registry wires them in.
Next.jsAstroSvelteKitVueReactVercelSupabaseNeonCloudflareStripeAnthropicOpenAIHugging Face
Anthropic
OpenAI
Hugging Face12Knpm downloads
3.2KGitHub stars
1templates
MITlicense
Ready to ship?
Start with a template. Keep the contracts.
Install the CLI, pick a starter, and your agent gets every contract it needs to navigate the rest of the project.