Open Second Brain
by itechmeat
Local-first 🧠 memory for Hermes Agent that lives in your Obsidian vault and remembers project context. Nightly 😴 dream passes turn repeat corrections into confirmed preferences with measurable confidence. Adapters ship for Claude Code, Codex, and OpenClaw, with an MCP server for anything else.
328 GitHub
No known CVEs
MIT license
Actively maintained
Last commit 3d ago
Works with most clients
Transport: stdio, sse, http
0 tools
Grade F
MCPpedia last refreshed this data
Open Second Brain is an MCP server that local-first 🧠 memory for Hermes Agent that lives in your Obsidian vault and remembers project context. Nightly 😴 dream passes turn repeat corrections into confirmed preferences with measurable confidence. Adapters ship for Claude Code, Codex, and OpenClaw, with an MCP server for anything else. Its tool list has not been published yet over stdio, sse and http, requires no API key, and scores 43/100 on MCPpedia's security, maintenance and efficiency rubric.
Step 1
Install in your client
Config is the same across clients — only the file and path differ.
CD
Supported in Claude Desktopstdio, sse, http · Node 18+
Paste into ~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"open-second-brain": {
"command": "<see-readme>",
"args": []
}
}
}Are you the author?
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[](https://mcppedia.org/s/open-second-brain)
Read me
What Open Second Brain does
An Obsidian-native memory layer for your AI agent. Plain Markdown you own, in the same vault you already use.
Test This Server
This server supports HTTP transport. Be the first to test it — help the community know if it works.
Scored, not listed
Why this score
Five weighted categories — click any category to see the underlying evidence.
Score breakdown
43/100across 5 weighted dimensions
0255075100
15
12
10
−57
Security
Maintenance
Efficiency
Documentation
Compatibility
Categoriesclick a row to see evidence
Security
OSV.devNo known CVEs.
No package registry to scan.
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Frequently Asked Questions
- Is Open Second Brain safe to use?
- Open Second Brain has no known CVEs as of the latest MCPpedia security scan. It does not require authentication, so any local process can connect — keep this in mind in shared environments. Licensed under MIT.
- How do I install Open Second Brain?
- Open Second Brain can be installed by cloning its GitHub repository and following the setup instructions in the README.
- What AI clients work with Open Second Brain?
- Open Second Brain is compatible with claude-desktop, cursor, claude-code. It uses stdio and sse and http transport.
- Is Open Second Brain actively maintained?
- Open Second Brain is actively maintained — last commit was 3 days ago. It has 328 GitHub stars.
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