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Memory MCP Server

by j0hanz·io.github.j0hanz/memory-mcp·v1.7.0
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SQLite-backed MCP server for persistent memory, full-text retrieval, and graph traversal.

B75/100grade B
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Safety scan
B75/100

full report

Adoption
New

0 stars58 downloads/wk

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If you have run it, two minutes of your experience saves the next person an afternoon.

Memory MCP Server tools (13, 5 write)

write = sends, deletes, buys or posts

Read from the package source without running it. The installed server may list more.

  • create_relationshipwrite action

    Create directed edge. Idempotent. Errors if endpoints missing.

  • delete_memorieswrite action

    Delete 1-50 memories atomically. Cascade deletes. Rolls back on error.

  • delete_memorywrite action

    Delete memory by hash. Cascade deletes relationships. Idempotent.

  • delete_relationshipwrite action

    Delete edge. Exact match required. Idempotent (deleted: false if missing).

  • get_memory

    Retrieve memory by SHA-256 hash. Returns E_NOT_FOUND if missing.

  • get_relationships

    Get relationships for memory. Filter direction. Inlines related memory.

  • memory_stats

    Get global stats: counts, timestamps, importance.

  • recall

    FTS search + BFS traversal (depth hops). Returns memories+edges. Emits progress. Aborts on limit.

  • retrieve_context

    FTS search within token budget. Sorts by relevance/importance/recency. Supports importance and type filters. Returns truncated: true if limit hit.

  • search_memories

    Full-text search (content+tags). Ranked, paginated. Alphanumeric/underscore only. Implicit AND.

  • store_memories

    Store 1-50 memories atomically. Idempotent. Rolls back on error.

  • store_memory

    Store single memory. Returns hash. Idempotent (created: false if exists). Prefer store_memories.

  • update_memorywrite action

    Update content and/or tags (at least one required). Returns old+new hash. Cascade updates relationships.

Public scan report

scanner v0.1.10 · 2026-09-28 · same rubric, same numbers if you re-run it

no findings
  • Code scan93 source files scanned25/25
  • –Live reliabilityno gateway calls yet and no remote to proben/a
  • –Tool poisoningtools not inspected (local package is not executed); not countedn/a
  • Auth qualitylocal package, no credentials required12/15
  • Maintenancelast push 210 days ago4/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10
Overall 75/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Memory MCP Server compares

Against every graded Databases MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
75/100
higher than 35% of 802 Databases servers
Tools
13
the typical Databases server has 8
Tools that change things
38%
typical: 10%. Fewer write tools means less an agent can break
Downloads a week
58
more than 41% of 328 Databases servers with a package

What its tools let an agent do: 8 read · 1 create · 1 change · 3 delete

Install Memory MCP Server in Claude Code, Cursor or VS Code

Runs npx -y @j0hanz/memory-mcp on your machine. Read the scan report first; the gateway never runs local packages.

claude mcp add memory-mcp -- npx -y @j0hanz/memory-mcp
Add to Cursor

What the publisher says

From the Memory MCP Server repository's README, as published. We do not edit it. Read it on GitHub

Memory MCP

<!-- markdownlint-disable MD033 -->

A SQLite-backed MCP server for persistent memory storage, full-text retrieval, and relationship graph traversal.

Overview

Memory MCP provides a local, persistent memory layer for MCP-enabled assistants. It stores SHA-256-addressed memory items in SQLite with FTS5-powered full-text search, a directed relationship graph, BFS recall traversal, and token-budget-aware context retrieval — all accessible over stdio transport with no external dependencies.

Key Features

  • 13 MCP tools for CRUD, batch operations, FTS5 search, BFS graph recall, token-budget context retrieval, relationships, and stats.
  • Full-text search over content and tags via SQLite FTS5 with importance and type filters.
  • Graph recall with BFS traversal, bounded frontier, and MCP progress notifications per hop.
  • Token-budget retrieval (retrieve_context) selects memories that fit a caller-specified token budget — no manual pagination needed.
  • Strict Zod input validation with typed output envelopes and SHA-256 hash addressing.
  • Resource support with internal://instructions (Markdown guide) and memory://memories/{hash} URI template with hash auto-completion.
  • stdio transport with clean shutdown handling (SIGINT, SIGTERM) and no HTTP endpoints. |

Requirements

  • Node.js >=24.
  • SQLite with FTS5 support (verified at startup).
  • Any MCP client that supports stdio command servers.

Quick Start

Use the npm package directly with npx — no installation required:

{
  "mcpServers": {
    "memory-mcp": {
      "command": "npx",
      "args": ["-y", "@j0hanz/memory-mcp@latest"]
    }
  }
}

[!TIP]

The server uses stdio transport only; no HTTP endpoint is exposed. Stdout must not be polluted by custom logging.

Or run with Docker:

docker run --rm -i ghcr.io/j0hanz/memory-mcp:latest

Client Configuration

Install in VS Code

Workspace file .vscode/mcp.json:

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Memory MCP Server: common questions

Is Memory MCP Server safe?
Mostly: it is graded B (75/100). Read the Memory MCP Server safety report
How do I install Memory MCP Server?
It runs on your machine. Copy the Claude Code, Cursor, VS Code or Claude Desktop config from the install section.
Does Memory MCP Server need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Memory MCP Server maintained?
The last commit was 248 days ago (2026-03-01). The latest release is v1.7.0.
What can I use instead of Memory MCP Server?
Servers from other publishers that do the same job: SAME - Stateless Agent Memory Engine MCP server, hmem — Humanlike Memory for AI Agents MCP server and sqlite-graph-memory MCP server.
How does Memory MCP Server compare with other Databases MCP servers?
safety score 75/100 (higher than 35% of 802 Databases servers); tools 13 (the typical Databases server has 8); tools that change things 38% (typical: 10%. Fewer write tools means less an agent can break). Full comparison.

Alternatives to Memory MCP Server

Same job from other publishers: the closest match first, then the best rated.

  • SAME - Stateless Agent Memory Engine
    Persistent memory for AI coding agents. Local-first SQLite + vector search. 17 MCP tools.
    B
  • hmem — Humanlike Memory for AI Agents
    Persistent 5-level hierarchical memory for AI agents. SQLite-backed, lazy-loaded.
    A
  • sqlite-graph-memory
    Recall over your markdown notes: vector search plus your [[wikilinks]] as a graph, in SQLite.
    A
  • Tinycontext
    Token-light local memory with SQLite hybrid retrieval for MCP agents.
    B
  • LoreConvo
    Local-first persistent session memory for Claude Code and other agents. SQLite + FTS5, no cloud.
    B

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