Omnigraph
An open-source graph database for your AI agents — a company brain with branches, like Git.
Key facts: Omnigraph launched on Product Hunt on November 12, 2026. It is an open-source, object-storage-native graph database for AI agents, with branching and a typed ontology: all your agents share one model of the domain they work in, and every write is checked against it. Agents work on branches across staging and production graphs, and nothing reaches main without review. Studio is a GPU-rendered desktop app for macOS, Linux and Windows to visualise the ontology, inspect knowledge and approve merges. It has about 2,000 stars on GitHub.
Plans: Free and open source. Download Studio for macOS, Linux and Windows: check the official site for the Cloud preview.
Best for: Teams building an agent-driven company brain who want shared memory with review. Who should skip it: anyone who just needs a simple key-value store, or a team with no agents writing data.
Pros
- Free and open source, with about 2,000 GitHub stars
- Git-style branches: nothing reaches main without review
- A typed ontology keeps every agent writing to the same model
- Studio desktop app for macOS, Linux and Windows
Watch out for
- You define the ontology first: there is no magic schema
- Object-storage native means a different setup from Postgres
- A launch-week product, so the Cloud preview is still early
Best for
Teams building an agent-driven company brain who want shared memory with review. Who should skip it: anyone who just needs a simple key-value store, or a team with no agents writing data.
Pricing
Free and open source. Studio is a free download for macOS, Linux and Windows.
FAQs
What is Omnigraph? An open-source graph database for AI agents: a company brain with a typed ontology, Git-style branches and hybrid search, so agents share one model of the domain.
Is Omnigraph free? Yes. It is free and open source, and Studio is a free download for macOS, Linux and Windows.
How do branches work? Agents work on branches across staging and production graphs, and nothing reaches main without review.
What is the typed ontology? One shared model of the domain every agent works in: every write is checked against it before it is saved.
Try it on the official website — pricing and availability are confirmed there.
Visit Omnigraph→