Crystalline

Local-first knowledge memory for AI agents that persists across sessions.

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Crystalline is a local-first memory system for AI agents that captures knowledge as structured Markdown Domains and Engrams so it endures across sessions, delivered as one Rust binary with an MCP server, CLI and hybrid search. It's aimed at developers using AI coding agents who want persistent, self-hosted memory instead of starting from scratch each session.

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Problem & pain-point mapping
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What it's a strong alternative to
Trust & credibility signals

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