Open-source graph database that gives AI agents one typed, branching knowledge graph with Git-like review and merge.
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1 / 3Overview
What is Omnigraph?
Open source graph database for your AI agents
Omnigraph is an open-source, object-storage native graph database built for AI agents. It allows AI agents to safely collaborate on shared knowledge: give agents one typed graph with Git-like branching, review, and merge for every write, so changes can be validated before becoming shared context.
Run it on your own S3-compatible storage, with semantic, keyword, and hybrid search plus graph traversal in one query. No hosted memory API or proprietary storage required. The engine, CLI and server are MIT licensed, and Omnigraph Studio offers a GPU-rendered desktop IDE for exploring the graph. A managed Cloud is in private preview.
Platforms and languages
Omnigraph Availability
Platforms
Languages
Capabilities
Omnigraph Key Features
Typed schema
Every agent shares one domain model, and every write is validated against the schema.
Git-like branching
Agents write on their own branches, then merge into main after review, with full history and time travel.
Hybrid search
Semantic, keyword and graph traversal queries run together in a single query.
Declarative policies
Cedar policies enforced inside the engine give fine-grained control over agent and human permissions.
Object-storage native
Data lives as open Lance files in your own S3-compatible storage, Azure Blob or local disk, with no lock-in.
Best for
Who uses Omnigraph?
Developers and AI engineers building agent systems
Give agents a shared, reviewable memory and context graph
Plans and access
Omnigraph Pricing
Free
Free and open source (MIT); Cloud in private preview
Common questions
Omnigraph FAQs
Is Omnigraph open source?
Yes. The engine, CLI and server are MIT licensed, and graphs are stored as open Lance files.
How is it different from a vector database?
Vector databases find similar text; a graph database tracks relationships between people, decisions and events. Agents usually need both.
Where does my data live?
In your own storage — S3-compatible storage, Azure Blob or a local disk. The self-hosted engine itself is free.
Does it support MCP?
Yes. Omnigraph ships an MCP server alongside TypeScript and Python SDKs, so agents can query the graph directly.
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