# Xata > Postgres by the thousands. Spin up tens of thousands of writable Postgres copies with real data, for the price of one. Xata is the managed Postgres platform for agent-driven development, testing, and training. Database demand scales with machine activity, not headcount. The Xata architecture decouples copy-count from cost — every agent, CI job, and simulation gets its own real database. ## How It Works - **Instant Postgres copies** — Branch a live database or spawn from a snapshot. Copies use compute only when active (scale to zero) and storage only for diffs (copy-on-write). No per-copy fees. - **Works with existing Postgres** — Replicate from RDS, Aurora, Cloud SQL, or self-hosted. Or run your primary on Xata. - **Vanilla Postgres** — Standard PostgreSQL, not a fork. Every Postgres tool works. Any cloud. - **Built-in PII anonymization** — Lightweight filters to HIPAA-grade microaggregation on every branch. - **Open-source core** — Core branching engine is open source. No vendor lock-in. pg_dump and go. ## Platform Features - [Postgres Branching](https://xata.io/postgres-branching) - [Realistic Staging Environments](https://xata.io/realistic-staging-dev) - [Postgres Data Masking](https://xata.io/postgres-data-masking) - [Postgres Schema Changes](https://xata.io/postgres-schema-changes) - [Database Agent](https://xata.io/database-agent) - [Postgres Performance](https://xata.io/postgres-performance) - [Postgres Storage](https://xata.io/postgres-storage) - [Postgres Analytics](https://xata.io/postgres-analytics) - [Postgres for Platforms](https://xata.io/postgres-for-platforms) - [Bring Your Own Cloud (BYOC)](https://xata.io/byoc) ## Agent Resources - [Database Infrastructure Glossary](https://xata.io/glossary) — 258 database terms across 26 categories. HTML page with search and filtering. - [Glossary Agent Context File (.md)](https://xata.io/glossary/database-glossary-agent.md) — Flat markdown, optimized for LLM context windows and agent skills. - [Glossary Agent Context File (.txt)](https://xata.io/glossary/database-glossary-agent.txt) — Plain text version of the glossary. - [Xata Claude Skill](https://xata.io/xata-claude-skill/SKILL.md) — Claude Code skill for creating isolated database branches. - [Full glossary + platform context (llms-full.txt)](https://xata.io/llms-full.txt) — Complete glossary content inline, no additional fetches needed. ## Open Source Projects - [pgroll](https://github.com/xataio/pgroll) — Zero-downtime PostgreSQL schema migrations via expand/contract pattern. - [pgstream](https://github.com/xataio/pgstream) — PostgreSQL CDC and streaming replication. - [pgzx](https://github.com/xataio/pgzx) — Build PostgreSQL extensions in Zig. ## Documentation - [Quickstart](https://xata.io/docs/quickstart) - [CLI Reference](https://xata.io/docs/cli) - [API Keys](https://xata.io/docs/platform/api-key) - [Xata Documentation](https://xata.io/docs) ## Company - [About Xata](https://xata.io/about) - [Xata vs Neon](https://xata.io/versus-neon) - [Pricing](https://xata.io/pricing) - [Get Access](https://xata.io/get-access) - [Blog](https://xata.io/blog) ## Version Last updated: February 2026