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siyuan

An open-source, privacy-first, self-hosted knowledge workspace where humans and AI agents work together 开源、隐私优先、自托管的知识工作空间,让人与智能体在此协作

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mcp-serverTypeScriptai-agentsiyuanself-hosteddockerknowledge-baseagentic-aimarkdownlocal-firstmcpnote-taking

SiYuan is an open-source, privacy-first, self-hosted knowledge workspace built with TypeScript, where humans and AI agents collaborate. It is recorded in this index with the role of an MCP server and ships an AGENTS.md file for agent guidance.

Reach for it when you want a local-first, markdown-based knowledge base that AI agents can work with over MCP while your notes stay self-hosted.

Use it to

  • Self-host a privacy-first knowledge base
  • Connect AI agents to notes via MCP
  • Organize markdown notes locally-first
  • Run a collaborative human-agent workspace via Docker

For Developers and note-takers who self-host and use AI agents

Role
mcp-server
Language
TypeScript
Licence
AGPL-3.0
Forks
3,010
Open issues
13
Last push
2026-09-17
Latest release
v0.1.0 · 2020-08-31
topicsnote-takingknowledge-basemcplocal-firstself-hostedmarkdown