Xentropy Notes — Memory Layer for AI
NPM · @XENTROPY/MCP
Semantic search and knowledge graph for your Wall notes from Claude Code and MCP clients.
Available components
Last scanned (21 hours ago)
Scores higher than 62% of npm servers
Deprecated
This server is marked deprecated in the MCP registry.
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security98
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- 30 of 92 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency19
- Repository check failed: the declared repository URL returned HTTP 404. See how to fix → View diagnostics → Fail
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 132 days ago).Pass
- Security-disclosure policy not yet verified: we couldn't inspect the source repository.Unverified
Schema Quality & AI Usability79
- AI-judged instruction clarity (excellent).Pass
- Tool/resource definitions use about 803 tokens (~80/item across 10 items; 10 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management97
- Stability observed for 29 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage96
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 88% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 10 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 10 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 4 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 3 Nov 26 −1
- Stability: pass → 0.93 functional
- 28 Oct 26 0
- Stability: 0.97 → pass security
- 27 Oct 26 0
- Stability: pass → 0.97 functional
- 21 Oct 26 0
- Stability: 0.97 → pass security
- 20 Oct 26 0
- Stability: pass → 0.97 functional
- 17 Oct 26 +2
- Stability: 0.83 → pass security
- 16 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 4 Nov 2026 · Analysed npm/@xentropy/mcp@0.3.1
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Dependencies 92 packages
| Packages resolved | 92 |
|---|---|
| Stale | 30 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
create_directory Create directory ~130
Create a new directory (folder) to organize notes. `name` is required; optional `parent` (a directory id to nest under), `formatInstructions` (a house-style prompt notes filed here are auto-formatted to), and `icon` (emoji). Returns the created directory with its id.
| Name | Type | Req | Description |
|---|---|---|---|
| formatInstructions | string | – | House-style prompt for notes filed into this directory |
| icon | string | – | Display emoji/token |
| name | string | yes | Directory name (required) |
| parent | string | – | Parent directory id to nest under; omit or 'root' for top-level |
No output schema declared.
No examples provided.
create_note Create note ~106
Create a new Wall note. `body` is required; `title` and `folder` (a directory id to file it into) are optional. Filing into a directory that has a format prompt auto-formats the note. Returns the created note with its id.
| Name | Type | Req | Description |
|---|---|---|---|
| body | string | yes | The note text (required) |
| folder | string | – | Directory id to file it into; omit or 'unfiled' for none |
| title | string | – | Optional title |
No output schema declared.
No examples provided.
get_note Get note ~39
Fetch a single note by id with its full text (body or voice transcript), AI summary, and tags.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | Note id |
No output schema declared.
No examples provided.
get_related_notes Get related notes ~44
Find notes semantically related to a given note id (most similar first).
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | Note id to find neighbors of |
| limit | integer | – | – |
No output schema declared.
No examples provided.
list_folders List folders ~27
List your folders (directories), for use as the `folder` filter in list_notes.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
list_notes List notes ~105
List your Wall notes, newest first. Optional filters: folder, type, archived, and a case-insensitive substring query. Returns compact rows; call get_note for full text.
| Name | Type | Req | Description |
|---|---|---|---|
| archived | boolean | – | Show archived notes instead of active ones |
| folder | string | – | Folder id, or 'unfiled' for notes with no folder |
| limit | integer | – | – |
| query | string | – | Case-insensitive substring filter |
| type | string | – | – |
No output schema declared.
No examples provided.
ping Ping ~30
Health check. Returns 'pong' with the server version and time, confirming the Xentropy MCP connection is live.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
search_notes Search notes ~68
Semantic search across your Wall notes. Returns the most relevant notes (id, title, snippet, similarity score); call get_note for full text. Requires a Pro plan.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Max results (default 10) |
| query | string | yes | What to search your notes for |
No output schema declared.
No examples provided.
update_directory Update directory ~132
Update a directory by id. Provide at least one of `name`, `parent`, `formatInstructions`, or `icon`; omitted fields are left unchanged. Set `parent` to 'root' to move it to the top level. Returns the updated directory.
| Name | Type | Req | Description |
|---|---|---|---|
| formatInstructions | string | – | New house-style prompt for notes filed here |
| icon | string | – | New display emoji/token |
| id | string | yes | Directory id to update |
| name | string | – | New name |
| parent | string | – | Move under this directory id; 'root' for top-level; omit to leave as-is |
No output schema declared.
No examples provided.
update_note Update note ~122
Update an existing note by id. Provide at least one of `title`, `body`, or `folder`; omitted fields are left unchanged. Set `folder` to 'unfiled' to move the note to the root. Returns the updated note.
| Name | Type | Req | Description |
|---|---|---|---|
| body | string | – | New body text (replaces the current body) |
| folder | string | – | Move to this directory id; 'unfiled' for the root; omit to leave as-is |
| id | string | yes | Note id to update |
| title | string | – | New title |
No output schema declared.
No examples provided.
How do I install the Xentropy Notes — Memory Layer for AI MCP server?
Xentropy Notes — Memory Layer for AI runs locally as an npm package, launched with npx -y @xentropy/mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · @xentropy/mcp
claude mcp add xjpru-xentropy-notes -- npx -y @xentropy/mcp
What is the Xentropy Notes — Memory Layer for AI MCP server?
Xentropy Notes — Memory Layer for AI is an MCP server listed in the public MCP registry as io.github.xjpru/xentropy-notes. Semantic search and knowledge graph for your Wall notes from Claude Code and MCP clients. This page covers its npm package (@xentropy/mcp).
Is the Xentropy Notes — Memory Layer for AI MCP server safe to use?
Xentropy Notes — Memory Layer for AI scores 79 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 4 November 2026. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Xentropy Notes — Memory Layer for AI MCP server expose?
Xentropy Notes — Memory Layer for AI exposes 10 tools: ping, search_notes, list_notes, get_note, get_related_notes, and 5 more. Their descriptions and schemas cost roughly 803 tokens of context every time the server is loaded.
Is the Xentropy Notes — Memory Layer for AI MCP server still maintained?
Xentropy Notes — Memory Layer for AI is marked deprecated in the MCP registry. We last reached this channel on 4 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the Xentropy Notes — Memory Layer for AI MCP server under?
Xentropy Notes — Memory Layer for AI declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.