About DB9

What is DB9

DB9 is a PostgreSQL-compatible database platform designed for modern applications and AI agent workflows. It speaks the PostgreSQL wire protocol, so any tool or driver that connects to Postgres works with DB9 out of the box — no adapters, no proxies.

Under the hood, DB9 is built on TiKV, a distributed transactional key-value store originally created at PingCAP. This architecture gives DB9 horizontal scalability, strong consistency, and multi-tenant isolation without the operational complexity of managing distributed Postgres clusters.

Why DB9 Exists

Databases have been optimized for human developers for decades. But the next wave of applications is being built by AI agents — coding assistants, autonomous workflows, and multi-agent systems that need to provision, query, and manage databases programmatically.

DB9 is designed for this world: instant database provisioning, built-in branching for safe experimentation, a filesystem interface for document storage, and first-class SDK and CLI support for agent integration. Every feature is built to work both for human developers and for the agents that write code alongside them.

Technology

DB9's stack is built in Rust and Go:

SQL layer — PostgreSQL-compatible query engine with support for DDL, DML, transactions, CTEs, window functions, and common extensions
Storage engine — TiKV provides distributed, replicated, ACID-compliant key-value storage
Wire protocol — Standard pgwire (PostgreSQL v3 protocol) on port 5433
Extensions — Built-in vector search, full-text search, HTTP client, filesystem (fs9), pg_cron, and more
Multi-tenancy — Shared infrastructure with strong per-tenant isolation at the storage and connection layers

For a deeper look at the architecture, see Architecture.

Background

DB9 builds on the distributed database expertise behind PingCAP and the TiKV project, a CNCF graduated project. TiKV powers production workloads at scale across industries worldwide.

The DB9 platform applies this foundation to a new problem: making databases as easy to provision and use as any other cloud API, with first-class support for the AI-native development workflow.

Get in Touch

Join the community or reach out:

Discord — community discussions, support, and feedback
GitHub — open-source tools, SDK, and CLI
hello@db9.ai — general inquiries