Memory MCP Server

@evangstav

代码仓库

基本信息

分类

记忆与知识

许可证

MIT

传输方式

stdio

作者

evangstav

关于 Memory MCP Server

暂无概览

Memory MCP Server 配置

暂无标准配置

该服务器的 README 中没有可解析的 MCP 配置块，请前往代码仓库查看安装说明。

代码仓库

Memory MCP Server 工具

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概览

What is Memory MCP Server?

A Model Context Protocol (MCP) server that provides knowledge graph functionality for managing entities, relations, and observations in memory, with strict validation rules to maintain data consistency.

How to use Memory MCP Server?

Install the server in Claude Desktop with mcp install main.py -v MEMORY_FILE_PATH=/path/to/memory.jsonl. It offers tools to create, read, search, and delete entities and relations, and to flush the entire memory.

Key features of Memory MCP Server

Strict validation rules for entity names, observations, and relations
Eight supported entity types: person, concept, project, document, tool, organization, location, event
Seven predefined relation types with no self-referential or circular dependencies allowed
Natural language search with temporal queries and fuzzy matching
Weighted search across entity names, types, and observations (80% similarity threshold)
Typed responses with error types: NOT_FOUND, VALIDATION_ERROR, INTERNAL_ERROR, ALREADY_EXISTS, INVALID_RELATION

Use cases of Memory MCP Server

Build and query a personal knowledge graph of people, projects, and documents
Track dependencies between software tools and work initiatives
Maintain a structured memory of events, locations, and organizations
Search past observations using natural language (“most recent workout”)

常见问题

What are the validation rules for entity names?

Entity names must start with a lowercase letter, contain only lowercase letters, numbers, and hyphens, be unique, and have a maximum length of 100 characters.

Where is the knowledge graph data stored?

Data is stored in a JSON Lines file at the path specified by the `MEMORY_FILE_PATH` environment variable.

What runtime dependencies does the server require?

The server is installed via `mcp install` into Claude Desktop and requires Python. Tests can be run with `pytest tests/`.

Are there any limits on observations or relations?

Observations must be non-empty, unique per entity, and at most 500 characters. Relations must be one of the predefined types; self-referential and circular relations are not allowed.

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