piezas
compare · piezas vs supabase

Supabase gives you a database.
Piezas gives you a backend.

Both get called "backend platforms," but they operate a level apart. Supabase manages infrastructure primitives — Postgres, auth, storage — and you build your backend out of them. Piezas manages finished business capabilities, and your app (or your AI agent) assembles them. Neither is a knockoff of the other; the honest question is which layer you want to own.

the short answer
With Supabase, your AI agent still writesthe booking system, the invoicing, the reminders — and that's exactly the code that breaks in production. AI is excellent at screens and glue; it is statistically bad at concurrency, idempotency, and security edge cases. Supabase doesn't shrink that dangerous surface — it hosts it. Piezas removes it: those capabilities ship as engineered, tested services, so the same app is roughly 73% less generated code.
/ side by side
Piezas
Supabase
What you get
Sixteen finished business services: bookings & availability, invoicing, forms, documents with e-signature state, pipelines, email, background jobs, audit logs.
Infrastructure primitives: managed Postgres, auth, object storage, realtime, edge functions, vector.
What your AI writes
UI, routing, and glue — it assembles services against per-service OpenAPI specs (~73% less generated code, ~74% fewer tokens).
Everything above the database: schema design, RLS policies, business rules, job scheduling, integration plumbing.
Business-logic correctness
Engineered into each service: double-booking prevented at the database, idempotency keys on side-effecting calls, retries, signed webhooks.
Yours to design. Race conditions, exclusion constraints, retry semantics, and replay protection are your generated code's job.
Who carries the pager
A team with SLAs maintains and patches the services under your app.
Supabase keeps Postgres up. When your business logic corrupts data at 2am, that's your code and your night.
Third-party integrations
Managed OAuth: Piezas holds and refreshes provider tokens (Google, Zoom, DocuSign…); your app stores references, never credentials.
DIY in edge functions — you store, encrypt, and refresh tokens yourself.
Open source / self-host
No — a managed platform (dedicated infrastructure available for compliance-heavy teams).
Yes — open source, self-hostable, large community. A genuine advantage if that's a requirement.
Best fit
Business software — CRMs, booking, client portals, invoicing — where the backend is undifferentiated and building it is pure liability.
Data-centric products where the schema is the product, and teams who want raw SQL control.
/ one concrete example

Don't let two people book the same slot.

On Supabase, your AI has to knowto write a Postgres exclusion constraint, handle the check-then-insert race, and add an idempotency key so a double-click doesn't create two bookings and two Zoom meetings. Most generated code checks availability, then inserts — and loses the race under load. It works in the demo and fails on the first busy day.

On Piezas, that is simply how the calendar service works: overlap is excluded at the database, creation takes an Idempotency-Key, and a linked Google calendar's busy time is checked server-side. Your agent calls one endpoint.

When Supabase is the right choice

→Your product's core is novel data logic — no prefab exists for what you're building.
→You want raw SQL and full schema control as a feature, not a chore.
→Open source or self-hosting is a hard requirement.
→Hobby and side projects that live happily on a generous free tier.
→Your team already thinks in Postgres and enjoys it.

When Piezas is the right choice

✓The app is business software: booking, CRM, portals, invoicing, intake — the backend is table stakes, not your edge.
✓You're shipping with AI agents and want the dangerous half of the codebase to not exist.
✓You need audit trails, tenant isolation, and a compliance posture from the first commit.
✓You want a team accountable for the backend's correctness — not just its uptime.

Plenty of teams use both: Supabase (or any Postgres) for a novel core domain, Piezas for everything around it — the bookings, documents, and billing that every business app needs and no business app is differentiated by.

Try it on one feature.
$ npx piezas init — free, two apps hosted
Start building