Show HN: MetaBrain – A local document memory for AI tools

Category: devtools

Tags: ai-agents, document-store, cli-tool

Score: 6.8/10 (Innovation: 6, Technical: 7, Documentation: 8, Utility: 6)

MetaBrain provides a local, durable, searchable document memory for AI agents and tools, storing notes, snippets, and metadata in a LevelDB-backed database with a CLI and daemon. It offers versioning, lexical search, and filesystem-like paths, bridging a gap between ephemeral AI tool state and persistent structured storage. The project is interesting for its combination of AI tool integration with serious engineering like LevelDB, ZSTD compression, and concurrent daemon architecture.

Target audience: backend devs, ai engineers, devops

Repository: https://metabrain.eu · Swift · BSD-3-Clause · 4 stars

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