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MCP reference memory server
Reference MCP server: a local knowledge graph of entities, relations and observations stored in a JSONL file, edited by the model through MCP tools.
@modelcontextprotocol/server-memory 2.0.0 on npm 2026-10-19; servers repo v2.1.0 on 2026-10-25. (checked 2026-10-25)
In Agent memory
Where it stands apart
- How is it mainly sustained? big company side project (5% of 20 others)
- Who is it for? both (14% of 21 others)
- Which shared standard or format does it mainly build on? Model Context Protocol (MCP) (0% of 21 others)
- In the default setup, who mainly decides what gets remembered? the agent, by calling memory tools (19% of 21 others)
- By default, how do old or wrong memories mainly go away? only when someone deletes them (agent, app, or user) (16% of 19 others)
- Where do memories live in the default setup the docs lead with? on the end user's own device (14% of 21 others)
- What shape does it mainly take (the one its docs lead with)? end-user app, plugin, or assistant feature (10% of 21 others)
What it shares with most of the community
- Is it actively maintained? active (67% of 21 others)
- How is the main thing licensed? permissive open source (MIT/Apache/BSD) (67% of 21 others)
- Can it run entirely on your own device or infrastructure, without the maker's servers? yes (67% of 21 others)
- Does it work with models from different LLM vendors? yes, model-agnostic (86% of 21 others)
- Is there a first-party MCP server for it? yes (67% of 21 others)
Nearest neighbors
- Basic Memory 71% of 17 shared answers match
- LongMemory (formerly OpenMemory) 63% of 16 shared answers match
- ReMe (formerly MemoryScope) 59% of 17 shared answers match
Every answer
| Question | Answer | Source |
|---|---|---|
| Is it actively maintained? | active | source 2026-10-25 |
| How is the main thing licensed? | permissive open source (MIT/Apache/BSD) MIT transitioning to Apache-2.0. | source 2026-10-25 |
| How is it mainly sustained? | stands apart big company side project Reference server in repo "managed by Anthropic, built with the community"; no revenue. | source 2026-10-26 |
| Can it run entirely on your own device or infrastructure, without the maker's servers? | yes | source 2026-10-25 |
| Do you need an account to use it? | no account Run via npx or Docker; no login or key listed. | source 2026-10-26 |
| Who is it for? | stands apart both Installed by MCP client users (e.g. Claude Desktop) as well as developers. | source 2026-10-25 |
| Which shared standard or format does it mainly build on? | stands apart Model Context Protocol (MCP) The MCP reference memory server. | source 2026-10-26 |
| In the default setup, who mainly decides what gets remembered? | stands apart the agent, by calling memory tools | source 2026-10-25 |
| How can the person the memories are about see and edit them? | directly, as readable files or in a UI they control Plain JSONL file at MEMORY_FILE_PATH. | source 2026-10-25 |
| By default, how do old or wrong memories mainly go away? | stands apart only when someone deletes them (agent, app, or user) delete_entities / delete_observations / delete_relations tools. | source 2026-10-25 |
| Where do memories live in the default setup the docs lead with? | stands apart on the end user's own device | source 2026-10-25 |
| Does it work with models from different LLM vendors? | yes, model-agnostic Any MCP client. | source 2026-10-25 |
| What is the main storage model for long-term memory? | knowledge graph (usually with vectors alongside) Knowledge graph serialized to one JSONL file; no vectors. | source 2026-10-25 |
| What shape does it mainly take (the one its docs lead with)? | stands apart end-user app, plugin, or assistant feature An MCP server plugged into an assistant. | source 2026-10-25 |
| Is there a first-party MCP server for it? | yes | source 2026-10-25 |
| How is memory separated between users or tenants? | one store per user or agent; the app partitions it | source 2026-10-25 |
| Does it publish scores on public memory benchmarks (LoCoMo, LongMemEval, BEAM, etc.)? | no | source 2026-10-25 |
Sources
This page was derived from:
- GitHub · github.com/modelcontextprotocol/servers/blob/main/LICENSE · read 2026-10-25
- GitHub · github.com/modelcontextprotocol/servers/tree/main/src/memory · read 2026-10-25
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