Managed service via Collate — Get started free →The #1 open context layer for
humans, AI assistants, and agents.
Unify technical context, business semantics, and organizational memory into one graph — so AI agents and humans reason from the same trusted foundation. Built by the founders of Apache Hadoop, Atlas, and Uber Databook.
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Largest & Fastest Growing Open Source Context Layer
Driven by an active community of thousands globally, OpenMetadata is the #1 open-source project for AI context, data cataloging, and metadata management.
Three primitives in one open Semantic Context Graph
Context
Schemas, tables, columns, dashboards, pipelines, ML models, owners, lineage, and classifications — captured in one open metadata graph.
Semantics
Glossary terms, metric definitions, ontologies, and W3C-standard relationships (RDF, OWL, DCAT, Schema.org) that give your data shared business meaning.
Memory
Corrections, decisions, approvals, feedback loops, and an auditable record of every change — across humans and AI.
Why OpenMetadata?
Semantic context your AI agents and people can act on
OpenMetadata builds a living knowledge graph of your data for AI — what it means, how it connects, and whether it can be trusted. Context drawn from data assets, memories, documents, and organizational policies flows into a single Semantic Context Graph, giving both people and AI agents the shared understanding they need to work on your data.
API-first and schema-first, by design
OpenMetadata's schema-first architecture — with 700+ open specifications in JSON Schema and RDF/JSON-LD — makes metadata programmable and extensible. Plug into your existing stack, customize your metadata model, and build data and AI workflows that scale with your organization.
Designed for simple setup, operations, and scalability
The streamlined architecture has only four system components, making it easier to deploy, operate, and upgrade compared to other solutions. The simple user experience is designed for technical and non-technical users to collaborate together, while still having robust data practitioner capabilities, all built to meet the scalability and security requirements of enterprises.
Give your AI agents trusted, understood data
AI agents are only as good as the data they act on. OpenMetadata's Semantic Context Graph gives every agent the context it needs — what a dataset means, where it came from, and whether it can be trusted — accessible with a native MCP server and AI SDK.
MCP server for direct agent-to-context integrationAI SDK lets external agents call OpenMetadata capabilities programmaticallyContext Center to centralize articles, documents, and memories for AI and humansIntegrations
OpenMetadata's ingestion framework supports connectors for 130+ data services, with more added every release.
Different ways to try out OpenMetadata
Trusted Across Industries
"OpenMetadata gives us a trusted foundation for AI-driven decision-making, letting our teams innovate faster and more confidently across the business."Sapir Hirshberg
Senior Data Product Manager, Wix
