🧠memU
Personal memory across agents
⭐ Very popular: 14k stars, gaining about 52 a week
View on GitHub ↗repo profile
momentum
durability
bus factor = how many people it takes to cover more than half the commits (6 months). 1 is a solo project; higher means the work is spread across a team. top-author share is the single busiest author's slice of those commits.
since we covered it
why it's a big deal
- Gives AI agents persistent, per-user memory so they can pull scoped, relevant context instead of rescanning full histories or stuffing long data into every prompt.
- Helps developers building agents cut token cost and latency by retrieving compact context, and it stores everything as human-readable Markdown that people can inspect and edit.
- Automatically extracts reusable tool patterns and workflows from an agent's tool traces, so an agent improves its skills over time without manual retraining.
under the hood
- Written in Python and organized as a three-layer Markdown structure, an INDEX file mapping memories, a MEMORY file for facts and preferences, and a SKILL file for extracted tool patterns.
- Offers two retrieval modes, vector-first recall with optional LLM routing, and LLM-ranked recall at each tier, exposed through memorize and retrieve APIs.
- Supports in-memory, SQLite, or PostgreSQL with pgvector as storage backends, and connects to OpenAI, OpenRouter, DashScope, and Voyage AI for models.
Radar summary, generated from the project's public sources
star history
- PR#27 9k 2026-02-11
- now 14k + 6k since first covered
curve is sampled from GitHub's star history, plus our own daily readings since we covered it; the dashed stretch is before we first covered it, the solid line since. figures at coverage are the numbers we printed then (approx.), current count is live.
understory
Better known than its recent output, coasting a little on attention.
- output, commits & releases
- clout, star velocity
output = commits & releases; clout = star velocity, both 0 to 100 monthly indices; the gap where output runs above clout is the understory. The understory →
covered in
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Memory for 24/7 proactive agents
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