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Writespace vs Obsidian MCP
Obsidian is a local-first, single-user knowledge base — your notes are plain Markdown files on your own disk, which many people rightly love for ownership and privacy. There's no official Obsidian MCP server; connecting an agent means running a community server, either bridging through the Local REST API plugin (with Obsidian kept open) or pointing a filesystem server at your vault. That works well on one machine. Writespace makes the opposite trade-off: a hosted editor where your docs live in the cloud and any MCP agent — or teammate — can reach them from anywhere, in real time.
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How they compare
| Obsidian MCP (community) | Writespace | |
|---|---|---|
| Official MCP? | No official server; community projects bridge via the Local REST API plugin or a filesystem server | Yes — the MCP server is first-party and built in |
| Where docs live | Local Markdown files on your own machine | Hosted in the cloud, reachable from anywhere |
| Architecture | Local-only; the agent runs on the same machine, often with Obsidian open | Hosted, remote — connect from any machine |
| Setup | Install a plugin + API key, or configure a local server with your vault path | Issue a personal access token, paste it into your client |
| Agent can | Read, create, append, patch by heading, search, edit frontmatter and tags | Read, create, append, replace a section by heading, search, organise folders |
| Collaboration | Single-user, local-first | Real-time — people and agents in the same live doc |
| Support | Community-maintained | First-party — part of the product |
Verified against Obsidian's forum and the leading community MCP projects. Products change — tell us if anything here is out of date.
Which one fits you
Choose Obsidian if…
- You want local-first ownership — plain Markdown files on your own disk, offline, private by default.
- You work solo and value a single local vault over a hosted service.
- You're happy running a community server on the same machine as your notes.
- A rich plugin ecosystem and graph view are part of why you're there.
Choose Writespace if…
- You want your docs reachable from anywhere by any agent, not bound to one local machine.
- People and agents editing the same doc in real time matters to you.
- You'd rather issue a token than keep an app running and maintain a local bridge.
- A hosted MCP docs server with lossless Markdown export — Free to start, Pro at $5 / user / month — fits better than a local vault.