Mnemo
local-first AI memory layer for any LLM (Rust, SQLite,petgraph)
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HN · launched Jun 3, 2026 · 60 upvotes (top 14%) · 0 views
Niche: ai agent memory infrastructure · 350 launches, 16 in the last 7 days ▼ -27% · Explore this niche →
Category and tags
- Horizontal
- Data infrastructure
- Developer
- AI-native
- Hobby / open-source project
Visit website ↗ Source listing ↗
More like this: all 350 launches in ai agent memory infrastructure →
Could you build this?
Yes A local memory library combining SQLite vector search and Petgraph knowledge-graph structures in Rust is a well-defined wrapper that can be composed with an AI coding assistant.
Discussion
20 comments analyzed.
Competitors mentioned: mori - multi-agent governance layer for shared memory, markbase - markdown-based agent memory across models/harnesses, Obsidian - project-level memory tool, Linear and Notion - for cross-model memory, mnemon - Python-based memory tool
Concerns raised: Auto-extracted memory no better than hand-written docs without human curation, Handling contradictory facts and graph resolution (e.g., person job changes), Hidden state/memory polluting context and making models dumber, Multi-agent writes causing corruption in block-based systems like Notion, Context injection/reinsertion left unspecified
Feature requests: Homebrew tap installation support, Automatic memory forgetting/decay mechanism (TTL system), Handle contradictory facts in knowledge graph, Better cross-harness memory sharing (Claude, Cursor, etc.), Governance/oversight layer for multi-agent memory writes
Competitors
Other products that read as similar to this one : 4633 launches clear the similarity bar, closest 8 shown.
Attention rank: #585 of 4634 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 217 days after the earliest competitor.
- A local-first memory store for LLM agents (SQLite) · hn · 2025-12-14 · 48 upvotes · similarity 0.76
- Engrim · hn · 2026-09-07 · 92 upvotes · similarity 0.76
- Shodh– AI memory that learns from use, no LLM calls, single Rust binary · hn · 2026-02-28 · 6 upvotes · similarity 0.74
- SQLite Memory · hn · 2026-04-07 · 10 upvotes · similarity 0.70
- Mnemosyne Local hierarchical memory engine for AI agents (MCP Native) · hn · 2026-08-23 · 10 upvotes · similarity 0.68
- DecisionNode · hn · 2026-04-10 · 23 upvotes · similarity 0.67
- Cachet · hn · 2026-06-23 · 5 upvotes · similarity 0.67
- Yana · hn · 2026-10-20 · 8 upvotes · similarity 0.66
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