io.github.MarcelRoozekrans/longterm-memory
NPM · LONGTERM-MEMORY-MCP
A fully local MCP server for long-term memory with semantic search
Available components
Last scanned (20 hours ago)
Scores higher than 0% of npm servers
Category Memory and Knowledge
Recent critical change
Known CVEs (1 Nov 2026). See the changelog before you install this server.
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 Security73
- No malware found by supply-chain analysis.Pass
- CVE check failed: an unpatched critical CVE affects this package; the score is capped at 0. See how to fix → View diagnostics → Fail
- No install/post-install scripts declared.Pass
- 61 of 169 dependencies flagged as unhealthy (1 deprecated). View diagnostics → Partial
Provenance & Transparency97
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to MarcelRoozekrans/LongtermMemory-MCP). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 4 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability76
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 788 tokens (~71/item across 11 items; 11 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management43
- Stability observed for 13 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 2 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "delete_memory" implies "delete" and declares no destructiveHint at all, which the MCP spec reads as destructive by default. See how to fix → Fail
- An AI judge read all 11 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.
- 1 Nov 26 −73
- Known CVEs: unverified → fail ▼ critical
- Score status: scored → failed ▼ critical
- Dependency health: unverified → 0.83 ▲ functional
- 31 Oct 26 +73
- Known CVEs: fail → unverified ▼ security
- Malware scan: unverified → pass ▲ security
- Dependency health: 0.83 → unverified ▼ functional
- Score status: failed → scored ▲ functional
- Package version: 1.6.0 → 1.6.1 functional
- 30 Oct 26 0
- Malware scan: pass → unverified ▼ security
- Package version: 1.5.0 → 1.6.0 functional
- 22 Oct 26 0
First indexed and scored.
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/longterm-memory-mcp@1.6.1
Provenance Verified
A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.
| Result | Verified |
|---|---|
| Ecosystem | npm |
| Reason | Verified |
| Discovered via | Registry attestation endpoint |
| Source repo | MarcelRoozekrans/LongtermMemory-MCP |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/MarcelRoozekrans/LongtermMemory-MCP/.github/workflows/release-please.yml@refs/heads/main |
| Rekor log index | 3608705949 |
| Predicate type | SLSA build provenance https://slsa.dev/provenance/v1 |
| Subject digest | sha512:00e2b4ff3a6be013fa6597fdb80c32f8ad2af6f29cf822beb990793ae2cf4102495a2efcfed90d1764c09056945ef45e0a28ea2f0067ee04bb8363351 |
Background: How many MCP packages publish verified provenance →
Vulnerabilities 14 findings
| ID | CVE | Severity | Vector | Fix available |
|---|---|---|---|---|
| GHSA-2pr8-phx7-x9h3 | CVE-2026-44294 | medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | yes |
| GHSA-66ff-xgx4-vchm | CVE-2026-44293 | high | yes | |
| GHSA-685m-2w69-288q | CVE-2026-44289 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
| GHSA-75px-5xx7-5xc7 | CVE-2026-44291 | high | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H | yes |
| GHSA-f38q-mgvj-vph7 | CVE-2026-54269 | medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | yes |
| GHSA-fx83-v9x8-x52w | CVE-2026-44292 | medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N | yes |
| GHSA-jggg-4jg4-v7c6 | CVE-2026-45740 | medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | yes |
| GHSA-jvwf-75h9-cwgg | CVE-2026-44290 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
| GHSA-q6x5-8v7m-xcrf | CVE-2026-44288 | medium | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N | yes |
| GHSA-wcpc-wj8m-hjx6 | CVE-2026-48712 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
| GHSA-xq3m-2v4x-88gg | CVE-2026-41242 | critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | yes |
| GHSA-f88m-g3jw-g9cj | CVE-2026-114113 | high | yes | |
| GHSA-rgj7-g3m4-5g8c | CVE-2026-114112 | high | yes | |
| GHSA-wq5f-xc86-pv6w | CVE-2026-114111 | high | yes |
Background: What a vulnerability scan can and cannot prove →
Dependencies 169 packages
| Packages resolved | 169 |
|---|---|
| Deprecated | 1 |
| Stale | 60 |
| 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_backup ~23
Create a manual backup of the memory database and export all memories as JSON.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
delete_all_memories ~32
Delete ALL stored memories. This action is irreversible. Only use when the user explicitly asks to clear all memories.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
delete_memory ~48
Delete a specific memory by its ID. Only delete when the user explicitly requests it or when a memory is confirmed outdated or incorrect.
| Name | Type | Req | Description |
|---|---|---|---|
| id | string | yes | The UUID of the memory to delete |
No output schema declared.
No examples provided.
get_all_memories ~63
Retrieve all stored memories, ordered by most recent first. Results are paginated.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Maximum number of memories to return (default: 50) |
| offset | integer | – | Number of memories to skip for pagination (default: 0) |
No output schema declared.
No examples provided.
memory_stats ~21
Get statistics about the memory store — total count and database location.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
save_memory ~188
Save information to long-term memory. The content will be embedded locally and indexed for semantic search. Use this to store facts, decisions, preferences, or any context worth remembering across sessions. Text inside <private>…</private> is removed before storing; content that looks like a secret (tokens, keys, passwords) is rejected.
| Name | Type | Req | Description |
|---|---|---|---|
| content | string | yes | The text content to store in memory |
| importance | number | – | Importance level 1-10 (default: 5). Higher = more resistant to decay |
| memory_type | string | – | Memory category (default: general). Affects decay rate |
| metadata | object | – | Optional key-value metadata to attach to this memory (e.g. { "topic": "auth", "project": "api" }) |
| tags | array | – | Optional tags for categorization (e.g. ["personal", "preference"]) |
No output schema declared.
No examples provided.
search_by_date_range ~97
Find memories created within a specific date range. Use ISO date format.
| Name | Type | Req | Description |
|---|---|---|---|
| date_from | string | yes | Start date in ISO format (e.g. "2026-01-01" or "2026-01-01T00:00:00Z") |
| date_to | string | – | End date in ISO format (defaults to now) |
| limit | integer | – | Maximum number of results (default: 50) |
No output schema declared.
No examples provided.
search_by_tags ~60
Find memories that match any of the provided tags. Returns memories ordered by importance.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Maximum number of results (default: 20) |
| tags | array | yes | Tags to search for — matches memories containing ANY of these tags |
No output schema declared.
No examples provided.
search_by_type ~60
Search memories by category type (e.g. fact, preference, conversation). Returns memories ordered by importance.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Maximum number of results (default: 20) |
| memory_type | string | yes | The memory type to filter by |
No output schema declared.
No examples provided.
search_memory ~88
Search long-term memory using semantic similarity. The query is embedded locally and compared against all stored memories using cosine similarity.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Maximum number of results to return (default: 5) |
| query | string | yes | Natural language search query describing what you're looking for |
| threshold | number | – | Minimum similarity score threshold, 0-1 (default: 0.3) |
No output schema declared.
No examples provided.
update_memory ~108
Update an existing memory. Can modify content (triggers re-embedding), metadata, tags, importance, or memory type.
| Name | Type | Req | Description |
|---|---|---|---|
| content | string | – | New text content (triggers re-embedding) |
| id | string | yes | The UUID of the memory to update |
| importance | number | – | New importance level 1-10 |
| memory_type | string | – | New memory category |
| metadata | object | – | New metadata object |
| tags | array | – | New tags array |
No output schema declared.
No examples provided.
How do I install the io.github.MarcelRoozekrans/longterm-memory MCP server?
io.github.MarcelRoozekrans/longterm-memory runs locally as an npm package, launched with npx -y longterm-memory-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 · longterm-memory-mcp
claude mcp add marcelroozekrans-longterm-memory -- npx -y longterm-memory-mcp
What is the io.github.MarcelRoozekrans/longterm-memory MCP server?
io.github.MarcelRoozekrans/longterm-memory is an MCP server listed in the public MCP registry as io.github.MarcelRoozekrans/longterm-memory. A fully local MCP server for long-term memory with semantic search. This page covers its npm package (longterm-memory-mcp).
What tools does the io.github.MarcelRoozekrans/longterm-memory MCP server expose?
io.github.MarcelRoozekrans/longterm-memory exposes 11 tools: save_memory, search_memory, get_all_memories, update_memory, search_by_type, and 6 more. Their descriptions and schemas cost roughly 788 tokens of context every time the server is loaded.
Is the io.github.MarcelRoozekrans/longterm-memory MCP server still maintained?
io.github.MarcelRoozekrans/longterm-memory is still listed as active 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 io.github.MarcelRoozekrans/longterm-memory MCP server under?
io.github.MarcelRoozekrans/longterm-memory declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.