@modelcontextprotocol/server-memory

MCP Knowledge Graph Memory Server by Model Context Protocol

MCP server for enabling memory for Claude through a knowledge graph

Live Registry Versionv2.0.0Previous: v1.0.0Published 2026-10-19

Stability Grade

B (78/100)

90-Day Velocity

3 releases

Stable release cadence

Dependencies

2 direct

NPM manifest

License

SEE LICENSE IN LICENSE

Verified on NPM

Recommended Exact Pin: npx -y @modelcontextprotocol/server-memory@2.0.0

NPM Registry ->GitHub Repo ->

TL;DR Verdict & Quick Citation Summary (2026-10-24)Source: AgentBreakWatch Live NPM Index

MCP Knowledge Graph Memory Server (@modelcontextprotocol/server-memory) is currently at v2.0.0 on NPM (published 2026-10-19), with a 90-day stability score of 78/100 (B) and HIGH schema drift risk across 3 releases in the past 90 days. Major v2.0.0 release updates MEMORY_FILE_PATH env handling and enforces strict entityType and observations array validation in create_entities. Production teams should pin npx -y @modelcontextprotocol/server-memory@2.0.0 rather than using unpinned @latest tags.

Breaking Changes & Tool Schema Drift Analysis

Major v2.0.0 release updates MEMORY_FILE_PATH env handling and enforces strict entityType and observations array validation in create_entities.

Watched Exports / MCP Tool Signatures:

create_entitiescreate_relationsadd_observationssearch_nodes

Before (Deprecated / Unpinned Pattern)

{ "name": "create_entities", "arguments": { "entities": [{ "name": "User", "type": "person" }] } }

After (Verified v2.0.0 Pattern)

{ "name": "create_entities", "arguments": { "entities": [{ "name": "User", "entityType": "person", "observations": [] }] } }

Frequently Asked Questions: @modelcontextprotocol/server-memory

What is the latest version of @modelcontextprotocol/server-memory on NPM?

As of 2026-10-24, the latest stable version of @modelcontextprotocol/server-memory (MCP Knowledge Graph Memory Server by Model Context Protocol) on NPM is v2.0.0, published on 2026-10-19. It has shipped 3 releases in the last 90 days.

Does @modelcontextprotocol/server-memory v2.0.0 have breaking changes or MCP schema drift risk?

@modelcontextprotocol/server-memory currently carries a HIGH schema drift risk rating with a Stability Score of 78/100 (Grade B). Major v2.0.0 release updates MEMORY_FILE_PATH env handling and enforces strict entityType and observations array validation in create_entities.

How do I safely pin @modelcontextprotocol/server-memory in production?

Avoid unpinned @latest tags in production agent configs. Pin the exact verified version using `npx -y @modelcontextprotocol/server-memory@2.0.0` and monitor create_entities, create_relations, add_observations, search_nodes for parameter or schema changes.

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