OpenMetadata

The largest and fastest-growing open-source project for AI context, data cataloging, and metadata management. OpenMetadata is the open platform for trusted data context, organizational memory, and business semantics for every data user, AI assistant, and agent. OpenMetadata connects technical metadata, data quality signals, lineage, column-level lineage, ownership, usage, policies, conversations, memories, glossaries, classifications, metrics, domains, data contracts, and data products into a unified metadata knowledge graph. With 130+ connectors, open metadata standards, semantic search, APIs, SDKs, and an MCP server, OpenMetadata gives every user and AI system the governed context it needs to discover, understand, trust, remember, and use data. AI does not need another raw database connector. AI needs context + memory. OpenMetadata provides the context AI needs to know: