Mnemosyne Local hierarchical memory engine for AI agents (MCP Native)
Details
- External ID
- 49410254
- Source
- HN
- Company
- —
- Product
- Mnemosyne
- Website domain
- github.com
- Launched
- Aug. 23, 2026
- Cohort
- —
- Upvotes
- 10
- Upvotes percentile
- 0.5772849462365591
- Tags
- —
- Fetched at
- Sept. 10, 2026, 5:32 a.m.
- Updated at
- Sept. 10, 2026, 5:32 a.m.
Enrichment
- Theme
- ai agent infrastructure and tooling
- Vertical
- Horizontal
- Function
- Agent / copilot
- Audience
- Developer
- AI stance
- AI-native
- Project type
- Commercial product
- Normalized one-liner
- memory engine for ai agents
- Manually corrected
- False
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 — 2151 launches clear the similarity bar, closest 8 shown.
Attention rank: #814 of 2152 (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 0.78
- Friday · hn · 2026-09-16 · 9 upvotes · similarity 0.75
- Memctl v0.1.0 Open source shared persistent memory for AI coding agents · hn · 2026-03-01 · 7 upvotes · similarity 0.73
- DecisionNode · hn · 2026-04-10 · 23 upvotes · similarity 0.71
- Jev-Mem · github · 2026-09-20 · 72 upvotes · similarity 0.70
- SQLite Memory · hn · 2026-04-07 · 10 upvotes · similarity 0.68
- Hippo, biologically inspired memory for AI agents · hn · 2026-04-06 · 128 upvotes · similarity 0.67
- Mnemo · hn · 2026-06-03 · 60 upvotes · similarity 0.67
Other launches for this product
Same idea, different domain
Nobody's really built a agent / copilot tool for Agriculture yet.