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Show HN: Mnemo – local-first AI memory layer for any LLM (Rust, SQLite,petgraph)

Local-first AI memory layer for any LLM. Persistent knowledge graph, entity extraction, semantic retrieval — no cloud required.

Most LLMs forget everything the moment a conversation ends. mnemo fixes that.

mnemo is a sidecar service that watches every conversation you feed it, extracts named entities and relationships using an LLM, builds a persistent knowledge graph in SQLite, and injects relevant context back into future prompts — automatically, in under 50ms. It works with Ollama (fully local, free), OpenAI, Anthropic, or any OpenAI-compatible API. It ships as a single static binary with zero cloud dependency.

Path A — Docker + Ollama (fully free, recommended)

Path B — Binary (Ollama or OpenAI running separately)

All endpoints accept and return application/json . Base URL: http://localhost:8080 .