What is SchemaStack?

SchemaStack is a data platform that lets you define, validate, and collaboratively manage structured data — backed by your own Postgres or MySQL database. We only store the metadata; your data lives in your own database.

The Problem

Teams working with structured data often face a choice: use a spreadsheet (flexible but chaotic) or build a custom app (reliable but expensive) — and increasingly, a third bad option: hand the data to a SaaS vendor who hosts it for you. SchemaStack takes a different path: we manage the platform, you keep your database.

The Solution

SchemaStack gives you:

• A schema layer — Define your entities, columns, types, and constraints. Your data structure is explicit, versioned, and enforced.
• A data layer — View, edit, and manage your data through a familiar spreadsheet-like interface with real-time collaboration.
• A validation layer — Column constraints (min/max, pattern, email, etc.) and entity constraints (cross-field rules like "start date before end date") catch problems before they enter your system.
• An API layer — Every workspace automatically gets a full REST API with CRUD operations, filtering, sorting, pagination, and OpenAPI/Swagger documentation. No code generation — the API is live as soon as your schema is defined.
• An admin layer — Manage organizations, workspaces, members, and roles with fine-grained permissions.

Who is it for?

SchemaStack serves four kinds of users:

• Developers building collaborative tools for clients. You know ORM principles — entities, relationships, constraints. You've been asked to ship a collaborative data tool for a client, and building from scratch would take months. SchemaStack gives you and your client a spreadsheet UI, guest access for non-technical end users, and an instant REST API — with the client's data staying in their own database.
• Teams escaping Airtable because they hit the relationship wall. You need real foreign keys, many-to-many relationships, and cross-field validation — the things linked records can't do.
• Administrative and operations teams managing structured data like product catalogs, inventory, vendor lists, research datasets, or configuration — who need a spreadsheet UX and whose IT won't approve handing data to another SaaS.
• Developers building a headless CMS who want structured content with a REST API, without locking into a hosted CMS cloud.

All four share the same core need: managed software, self-owned data.

Architecture

SchemaStack consists of three layers:

• Data Platform — The main interface where you work with your data: views, columns, constraints, filters, presets, and real-time collaboration.
• Admin Console — Organization and workspace management: teams, members, roles, and settings.
• Workspace API — An auto-generated REST API for every workspace. Define your entities in the Admin Console or Data Platform, and a full CRUD API with Swagger documentation is instantly available — no code to write or deploy.

The Data Platform and Admin Console are web applications. The Workspace API is accessed programmatically and can be integrated with external services like Zapier, Jotform, or your own applications.