Mnemosyne Local hierarchical memory engine for AI agents (MCP Native)
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HN · launched Aug 23, 2026 · 10 upvotes (top 42%) · 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
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More like this: all 350 launches in ai agent memory infrastructure →
Could you build this?
Partial Building an MCP server is straightforward, but designing an effective, performant hierarchical memory engine with multi-tiered vector storage, decay algorithms, and retrieval ranking requires advanced algorithmic work.
What it would actually take: The system requires an MCP server wrapper in Python or TypeScript connected to an embedded or local vector/graph database (such as SQLite with sqlite-vec or DuckDB). The hard component is the memory architecture: implementing hierarchical summarization, temporal decay curves, associative linking, and token-budget-aware retrieval algorithms to dynamically serve context to agents without polluting context windows. This demands solid information retrieval and AI memory systems expertise.
Discussion
No comments on this launch.
Competitors
Other products that read as similar to this one : 4910 launches clear the similarity bar, closest 8 shown.
Attention rank: #2218 of 4911 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 298 days after the earliest competitor.
- Hebbs · hn · 2026-03-09 · 6 upvotes · similarity 0.79
- loci · github · 2026-10-01 · 26 upvotes · similarity 0.79
- Friday · hn · 2026-09-16 · 9 upvotes · similarity 0.77
- IHMT · hn · 2026-10-12 · 8 upvotes · similarity 0.75
- Memctl v0.1.0 Open source shared persistent memory for AI coding agents · hn · 2026-03-01 · 7 upvotes · similarity 0.75
- SuperLocalMemory 4.0 "Governed Memory Operating System for AI Agents" · hn · 2026-10-04 · 5 upvotes · similarity 0.74
- noosphere-lite-mcp · github · 2026-11-08 · 11 upvotes · similarity 0.74
- DecisionNode · hn · 2026-04-10 · 23 upvotes · similarity 0.72
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