Motorhead

Overview

Motorhead is a memory server written in Rust for managing conversation context in LLM applications. Built by Metal, it provides a fast, lightweight solution for storing and retrieving conversation history with automatic summarization.

Key Features

**High Performance**: Built in Rust for speed and efficiency

**Redis Backend**: Uses Redis for fast, reliable storage

**Automatic Summarization**: Summarizes long conversations to fit context windows

**Session Management**: Manages multiple conversation sessions

**Simple API**: RESTful API for easy integration

When to Use Motorhead

Motorhead is ideal for:

Applications needing fast conversation memory

Self-hosted deployments requiring performance

Simple conversation history management

Teams comfortable with Redis infrastructure

Pros

Very fast (Rust + Redis)

Simple, focused functionality

Easy to self-host

Lightweight footprint

Automatic context summarization

Cons

Less feature-rich than alternatives

Requires Redis

Limited to conversation memory

Smaller community

Getting Started

# Run with Docker
docker run --name motorhead -p 8080:8080 \
  -e REDIS_URL=redis://localhost:6379 \
  getmetal/motorhead

import requests

# Add messages
requests.post("http://localhost:8080/sessions/123/memory", json={
    "messages": [
        {"role": "user", "content": "Hello!"},
        {"role": "assistant", "content": "Hi there!"}
    ]
})

# Get memory
response = requests.get("http://localhost:8080/sessions/123/memory")

Architecture

Motorhead is designed for simplicity:

**Memory Store**: Redis-backed message storage

**Summarizer**: LLM-based conversation summarization

**REST API**: Simple HTTP interface

Pricing

**Open Source**: Free, MIT license

Memory Types

Integrations