MCP Memory Service (rust Implementation)
M

MCP Memory Service (rust Implementation)

This is an MCP Memory Service implemented in Rust, providing memory storage and retrieval functions, supporting multiple storage backends and embedding models, and communicating with clients via the JSON-RPC protocol.
2 points
9.0K

What is the MCP Memory Service?

The MCP Memory Service is a memory storage and retrieval tool based on the Model Context Protocol (MCP), allowing users to store, retrieve, search for, and delete memory records with content, tags, and metadata. It communicates via standard input/output (stdio), facilitating integration with other MCP clients.

How to use the MCP Memory Service?

Users can interact with the service by sending JSON-RPC requests. First, start the service, and then send requests via the command line or client tools to perform functions such as storage and retrieval.

Applicable Scenarios

Suitable for application scenarios requiring efficient memory management, such as knowledge base construction, dialogue system development, and intelligent assistant development.

Main Features

Store Memory
Save new memories and their related content, tags, and metadata to the system.
Retrieve Memory
Retrieve the most similar memories based on the query statement.
Search by Tag
Find relevant memories by specifying tags.
Delete Memory
Delete specific memories based on the memory hash value.
Support for Multiple Storage Backends
Supports in-memory storage (for development and testing) and ChromaDB storage (for production environments).
Support for Multiple Embedding Models
Supports the Dummy embedding generator and ONNX embedding models.
Advantages
Easy to integrate into other MCP clients.
Supports multiple storage and embedding models to meet different needs.
Efficient memory management and retrieval capabilities.
Open source and free to use.
Limitations
Requires a certain technical background to fully utilize its functions.
ONNX models may require additional hardware acceleration (e.g., GPU).

How to Use

Install Dependencies
Ensure that Rust, Cargo, and Node.js are installed.
Build the Project
Build the MCP Memory Service using Cargo.
Run the Service
Start the service and set environment variables.
Send Requests
Send requests such as storage and retrieval via JSON-RPC.

Usage Examples

Store Memory
Add a new memory to the system.
Retrieve Memory
Find similar memories based on the query statement.

Frequently Asked Questions

How to choose the appropriate storage backend?
How to configure the ONNX embedding model?

Related Resources

Official GitHub Repository
The official code repository for the MCP Rust SDK.
MCP Documentation
The complete documentation for the MCP protocol.
ONNX Runtime
The official website of ONNX Runtime.

Installation

Copy the following command to your Client for configuration
{
  "mcpServers": {
    "memory-service": {
      "command": "/path/to/mcp-rust-server",
      "args": [],
      "env": {
        "MCP_MEMORY_STORAGE_BACKEND": "inmemory",
        "MCP_MEMORY_EMBEDDING_MODEL": "onnx",
        "MCP_MEMORY_EMBEDDING_MODEL_PATH": "/path/to/model.onnx",
        "MCP_MEMORY_EMBEDDING_SIZE": "768",
        "MCP_MEMORY_LOG_LEVEL": "info"
      },
      "disabled": false,
      "autoApprove": []
    }
  }
}
Note: Your key is sensitive information, do not share it with anyone.

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