01 / Memories
Readable memory, not a black box.
Browse local Markdown, organize separate vaults, and edit what your agents are allowed to remember.
Free and open source AI memory
A brain for every
agent you use.
NeuroVault builds a durable memory base on your computer, then brings back the right context when your work needs it. Automatic for Claude Code. Available to any MCP-compatible agent.
No account
No telemetry
No hosted memory bill
Prefer the engine?
Your own memory layer, one repository.
Use the complete Mac app, or clone the same open source engine and configure it around your own agents.
$ git clone https://github.com/sirdath/NeuroVault.git
$ cd NeuroVault && node scripts/build-headless.mjs
The Method
FIG. 1, RECALL PATHFIG. 1. HYBRID RETRIEVAL, BENCHMARKED IN THE OPEN. SEMANTIC (SQLITE-VEC) + BM25 + KNOWLEDGE GRAPH, FUSED VIA RECIPROCAL RANK FUSION. RECALL RETURNS THE PASSAGES THAT MATTER, NOT THE WHOLE FILE. NO LLM EVER READS YOUR DATA AT WRITE TIME; PRIVACY IS STRUCTURAL. EVERY RECALLED FACT CARRIES A 0 TO 1 CONFIDENCE SIGNAL, DISTINCT FROM RELEVANCE, COMPUTED WITH ZERO LLM CALLS.
Watch your second brain take shape.
Write and inspect memories, see how ideas connect, and understand when automatic context helped. The interface stays optional; the memory engine keeps working underneath.
Views 1–2 of 3
02 / Graph
More than a folder of files.
Explore the vector, keyword, wikilink, entity, and graph relationships inside your memory base.
03 / Today
Know when memory helped.
See automatic context activity, recent memory changes, the active vault, and anything waiting for review.
The Evidence
LONGMEMEVAL, FULL SET97.45%
HIT@5 · LONGMEMEVAL · NEUROVAULT’S REAL RECALL PATH
This is retrieval recall, not an end-to-end QA leaderboard number. We publish it anyway.
In plain terms: ask it for a memory, and the right one is in the top five results 97 times out of 100, measured on 470 questions over long multi-session chat histories.
| HIT@5 | FULL 470-QUESTION SET | 0.9745 |
|---|---|---|
| RECALL@5 | STRICTER: ALL GOLD SESSIONS | 0.9383 |
| HIT@10 | SAME RUN | 0.99 |
| HAYSTACK | MEDIAN QUERY | 120K TOKENS |
| EMBEDDINGS | BGE-SMALL ONNX | 100% ON-DEVICE |
Coordination
FIG. 2, HANDOFF + INBOXFIG. 2. AGENTS ROUTE WORK TO EACH OTHER AND READ THEIR OWN INBOX THROUGH ONE SHARED LOCAL BRAIN. HANDOFFS ARE PULL-BASED AND INERT; NOTHING AUTO-RUNS. SESSION_START(AGENT=X) SCOPES EACH AGENT’S VIEW TO ITS OWN RECENT MEMORY AND INBOX. A COORDINATION SUBSTRATE, NOT AN ORCHESTRATOR.
Yours by design
A memory should belong to the person who built it.
NeuroVault has no account, telemetry, cloud sync, or NeuroVault-operated memory service. Note and engram content is stored as Markdown you can open with ordinary tools.
Read the exact privacy contract ↗
Stays local
Notes, indexes, graph, review history
Leaves only when chosen
Selected context sent by an AI client you connect
Network on first use
Local model downloads from Hugging Face
Your controls
Pause, inspect, correct, export, or delete
The complete app, or the engine on your terms.
Both paths use the same repository and the same local memory foundation. NeuroVault is free to use either way.
Everything included
NeuroVault for Mac
Open it and start building memory.
The visual app, memory browser, graph engine, review queue, settings, automatic context controls, and built-in local MCP server.
- Signed and notarized
- Apple Silicon, macOS 14+
- No account or subscription
Configure it yourself
NeuroVault core
Use the engine without the interface.
Clone the main repository, build the headless Rust server, and connect it to your own MCP clients or local applications.
$ git clone https://github.com/sirdath/NeuroVault.git
$ node scripts/build-headless.mjs
Memory that compounds
Give your agents a brain
that stays yours.
Start free. Keep the files. Let the memory base become more useful with every project, decision, and session.