Xentropy Notes — Memory Layer for AI
Semantic search and knowledge graph for your Wall notes from Claude Code and MCP clients.
MCP server · by xjpru
About
Xentropy Notes — Memory Layer for AI is an MCP server published by xjpru. Marketplaces we read that list it: 1 (Official MCP Registry). We first saw it on 2026-10-11 and have recorded no change since. As of our marketplace pass on 2026-10-12.
What it asks for
- Runs on your machine
- Secrets: 2
- Settings: 3
Requires: XEN_API_TOKEN (secret), XEN_REFRESH_TOKEN (secret)
What it declares, asks for and runs, in full
Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.
Package
npm @xentropy/mcp (@xentropy/mcp on npm)
- npm downloads/week: 18 (2026-10-12)
- npm downloads/month: 98 (2026-10-12)
- Latest version on npm: 0.4.0, published 2026-06-24
npm facts come from the public npm registry (registry.npmjs.org, api.npmjs.org). Each figure is the registry's own and is never added to another. A registry that publishes no figure shows none: no number is not zero.
Works with
- Claude Code
- Codex
- Cursor
- VS Code
- Copilot CLI
From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.
Connect
Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.
As a local MCP server: npm package
Built from what Official MCP Registry declares.
claude mcp add --env "XEN_API_TOKEN=<YOUR_XEN_API_TOKEN>" --env "XEN_REFRESH_TOKEN=<YOUR_XEN_REFRESH_TOKEN>" --transport stdio xentropy-notes -- npx -y @xentropy/mcp[mcp_servers.xentropy-notes]
command = "npx"
args = ["-y", "@xentropy/mcp"]
[mcp_servers.xentropy-notes.env]
XEN_API_TOKEN = "<YOUR_XEN_API_TOKEN>"
XEN_REFRESH_TOKEN = "<YOUR_XEN_REFRESH_TOKEN>"{
"mcpServers": {
"xentropy-notes": {
"command": "npx",
"args": [
"-y",
"@xentropy/mcp"
],
"env": {
"XEN_API_TOKEN": "<YOUR_XEN_API_TOKEN>",
"XEN_REFRESH_TOKEN": "<YOUR_XEN_REFRESH_TOKEN>"
}
}
}
}Replace the values in angle brackets with your own. We show the names of the settings, never values.
Optional settings it also lists: XEN_API_URL.
We do not store launch arguments. If the server needs any, its own documentation names them.
Where it is published
| Marketplace | Status | Version | Figures | Verified | First seen |
|---|---|---|---|---|---|
| Official MCP Registry (Open the registry record) | Listed, marked deprecated | 0.3.1 | Downloads/month (npm): 98 Downloads/week (npm): 18 |
Not marked |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
What changed
Nothing has moved on this plugin since we started watching it.
Similar plugins
Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.
-
Save notes in seconds. Your AI can then search, read, write and tag them over MCP.
-
Securely search, create, and organize your Mem notes and collections from AI assistants.
-
Create, search and manage Knowtis collaborative notes from AI assistants.
-
memol app.memol/memol
Search, read, create and edit your Memol notes from Claude. Team note-taking with AI search.
-
Search and manage your Dexi notes: full-text and semantic search, tags, folders, spaced repetition.
-
Create, search, and update notes in an xNotepad AI notebook, with semantic search and AI Q&A.
-
Token-efficient MCP memory for Markdown vaults. Tiered search, GraphRAG, AI memories.
-
Cross-session memory and hybrid RAG over your notes and docs. Local-first, with cited answers.
-
Search, read, and safely update Markdown notes in your connected Phasoric knowledge vaults.
-
Evergences — Memos, Content and Shared Memory
Read full memos, search site content and API guides, and discover live public agent memories.
Similar plugins by marketplace
The same question asked of one marketplace at a time: is there an analog of this plugin there?
Has a listing on Claude Code: claude-plugins-community (5)
-
knowmine-personal-knowledge-base
Save notes and decisions during AI conversations. Search them later by meaning, not keywords. Works across Claude Code and any MCP-compatible AI.
-
Personal knowledge management for Claude Code. Connect to your Obsidian vault with 20 MCP tools, semantic search, wikilink graph traversal, template-based note creation, link…
-
Connect Claude Code to your Amplenote account and manage notes without leaving your workflow. Supports creating notes with tags, reading full note content, updating or deleting…
-
Connect Claude to your Context Link knowledge base and retrieve just the right context from your connected sources: Notion, Google Drive and any websites. Context Link also has a…
-
Sticky notes for Claude Code. Write memos in a Markdown file — URLs, ideas, TODOs, anything. Claude reads, organizes by category, and acts on them (opens URLs, runs checks, marks…
Has a listing on Claude Code: claude-plugins-official (5)
-
Continuous memory for Claude Code. Extracts, summarizes, and compresses conversations into tiered daily logs. Claude remembers what you did yesterday.
-
Notion workspace integration. Search pages, create and update documents, manage databases, and access your team's knowledge base directly from Claude Code for seamless…
-
Tools to maintain and improve CLAUDE.md files - audit quality, capture session learnings, and keep project memory current.
-
Secure access to Miro boards. Enables AI to read board context, create diagrams, and generate code with enterprise-grade security.
-
Circleback conversational context integration. Search and access meetings, emails, calendar events, and more.
Has a listing on Claude: knowledge-work-plugins (5)
-
Secure access to Miro boards. Enables AI to read board context, create diagrams, and generate code with enterprise-grade security.
-
Search across all of your company's tools in one place. Find anything across email, chat, documents, and wikis without switching between apps.
-
Manage tasks, plan your day, and build up memory of important context about your work. Syncs with your calendar, email, and chat to keep everything organized and on track.
-
Work with your Box content directly from Claude Code — search files, organize folders, collaborate with your team, and use Box AI to answer questions, summarize documents, and…
-
Slack integration for searching messages, sending communications, managing canvases, and more
Has a listing on Codex: openai-curated (openai/plugins) (5)
-
Notion workflows for implementation planning, research synthesis, meeting preparation, and knowledge capture.
-
Turn Codex into your ClickUp command center.
-
Search, create and update Linear issues, projects, and initiatives. Draft PRDs, write updates, analyze customer requests, and keep plans up to date — all from within ChatGPT
-
Bring operational data and context into the flow of your ChatGPT conversations. You can ask questions, create and update records, and analyze your data—all through conversation…
-
Use Google Drive as the single entrypoint for Drive, Docs, Sheets, and Slides work.
Has a listing on Community GitHub marketplaces (5)
-
bettermemory io.github.0Mattias/bettermemory
Memory for coding agents, checked against the filesystem and git before it is believed.
-
FastMCP server for Obsidian wikilink suggestions from a pre-computed knowledge g
FastMCP server for Obsidian wikilink suggestions from a pre-computed knowledge graph (graphify…
-
Local markdown notes: ranked + semantic search, tags, todos, and a wiki-link knowledge graph.
-
Deterministic decision capture + pre-task veto warnings from your self-hosted RoBrain stack
-
Local graph memory that lets Codex recall project context across sessions.
Has a listing on Copilot CLI: github/awesome-copilot (5)
-
Query Anarlog meetings locally, or connect through OAuth to read opted-in Cloud snapshots.
-
See your local Copilot token usage by day, model, and session, and get tips to use it more efficiently.
-
Three-layer verification pipeline for AI output. Extracts claims, finds sources, and flags hallucination risks so humans can verify before acting.
-
Self-configuring status briefing generator. Learns your communication style from examples, discovers your data sources, and produces draft updates for any audience on demand.
-
Comprehensive collection for building declarative agents with Model Context Protocol integration for Microsoft 365 Copilot
Has a listing on Copilot CLI: github/copilot-plugins (5)
-
workiq
Query Microsoft 365 data with natural language — emails, meetings, documents, Teams messages, and more.
-
workiq-productivity
WorkIQ productivity skills powered by the local WorkIQ CLI — read-only insights across email, meetings, calendar, Teams, SharePoint, projects, and people.
-
Toolkit for building Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, and capability configuration.
-
Build Power Apps Canvas Apps using the Canvas Authoring MCP server.
-
Bring Azure DevOps work-item, repository, and pull-request workflows into GitHub Copilot.
Has a listing on Cursor: cursor/plugins (5)
-
Capture, search, and organize notes and collections.
-
Search, create, and update documents and daily notes.
-
Incremental transcript-driven memory updates for AGENTS.md using high-signal bullet points only.
-
Search meeting transcripts, summaries, and action items.
-
Search meetings, transcripts, action items, and emails.
Has a listing on Docker MCP Catalog (5)
-
A Model Context Protocol server for Omi interaction and automation. This server provides tools to read, search, and manipulate Memories and Conversations.
-
MCP server that interacts with Obsidian via the Obsidian rest API community plugin.
-
mcp-neo4j-memory io.github.neo4j-contrib/mcp-neo4j-memory
MCP Neo4j Knowledge Graph Memory Server
-
Knowledge graph-based persistent memory system.
-
SecureNote.link MCP Server - allowing AI agents to securely share sensitive information through end-to-end encrypted notes.
Has a listing on Official MCP Registry (5)
-
Save notes in seconds. Your AI can then search, read, write and tag them over MCP.
-
Securely search, create, and organize your Mem notes and collections from AI assistants.
-
Create, search and manage Knowtis collaborative notes from AI assistants.
-
memol app.memol/memol
Search, read, create and edit your Memol notes from Claude. Team note-taking with AI search.
-
Search and manage your Dexi notes: full-text and semantic search, tags, folders, spaced repetition.
Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.
Is this your plugin?
Add it to your projects and prove you maintain it with a file in its repository, a file on your domain or a DNS record. You get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and its remote endpoint goes on monitoring as a web service.
Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.