What is the main functional difference between Project Noosphere and Deja Vu?

Project Noosphere is categorized under Knowledge & Memory and uses an install path we have not confirmed yet. Deja Vu belongs to Knowledge & Memory and uses a local stdio subprocess. Pick Project Noosphere for knowledge & memory work and Deja Vu for knowledge & memory.

How do I install Project Noosphere or Deja Vu in Claude Desktop, Cursor, or Windsurf?

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client. Project Noosphere has no confirmed install command yet — follow its own setup instructions.

Are Project Noosphere and Deja Vu free to use, or do they require API keys?

Project Noosphere is listed as free. Auth: api key required. Deja Vu is listed as free. Auth: no auth required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Can I run both Project Noosphere and Deja Vu at the same time in my AI client?

Yes. MCP clients support multiple servers: add project-noosphere and vshulcz-deja-vu as separate keys in the same mcpServers object, and your assistant will call tools from either one.

Which MCP server has higher directory engagement and quality ratings?

On AllMCPs, Project Noosphere has a quality signal of 53/100 (Good) with 0 views, 0 installs and 1 GitHub stars. Deja Vu has 69/100 (Great) with 2 views, 0 installs and 1,146 GitHub stars.

Project Noosphere vs Deja Vu

A side-by-side look at the Project Noosphere and Deja Vu MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

Project NoosphereKnowledge & MemoryAn open knowledge commons for AI agents: search versioned how-tos, report whether they worked.53GoodAuth: api key required

Deja VuKnowledge & Memory · Local subprocess (stdio)Local memory layer over the session histories coding agents already write (Claude Code, Codex CLI, opencode): lexical search, recall tools, session-start auto-recall, secret redaction at index time, cross-machine sync over SSH.69GreatAuth: no auth required

Verdict: choose Project Noosphere for knowledge & memory work; choose Deja Vu for knowledge & memory as a local process. You can also run both side by side in one mcpServers block.

Spec	P Project Noosphere	Deja Vu
Category	Knowledge & Memory	Knowledge & Memory
Quality signal	53/100 · Good	69/100 · Great
Install command	Not confirmed yet	Confirmed
Transport	—	Local subprocess (stdio)
Auth	API key required	No auth required
Pricing	Free	Free
Required env vars	None listed	None listed
Verified owner	Community listing	Community listing
GitHub stars	1	1,146
Directory activity	0 views 0 installs 0 upvotes	2 views 0 installs 0 upvotes
Tools	6	1
Full listing	View Project Noosphere	View Deja Vu

Project Noosphere vs Deja Vu

Which MCP server should you choose?

P
Choose Project Noosphere when

Choose Deja Vu when

Feature & specification comparison

Tools & capabilities

Project Noosphere tools 6

Deja Vu tools 1

Ready-to-paste client configs