Kkclaw Server

Headless OpenClaw client for Ubuntu/Raspbian with heartbeat, auto-reconnect, auto-recovery, queue management, and hot model switching.

Optimized OpenClaw client for Ubuntu/Raspbian as remote server.

Overview

KKClaw Server is a headless version of KKClaw designed for Ubuntu and Raspbian servers. It runs without GUI, perfect for Raspberry Pi or cloud instances.

Features

1. Heartbeat Mechanism

• Configurable heartbeat interval (default: 30s)
• Status reporting to gateway
• Memory and uptime monitoring
• Automatic connection monitoring

2. Auto Reconnect

• Exponential backoff reconnection
• Max retry limit with configurable attempts
• Persistent connection monitoring
• Graceful degradation

3. Auto Recovery

• Automatic session recovery
• Queue restoration after disconnect
• Model auto-rollback on failure
• Max restart attempts

4. Queue Management

• Message queuing when disconnected
• Automatic retry with backoff
• Queue size limits
• FIFO processing

5. Model Switching

• Hot model switching without restart
• Fallback model support
• Auto-rollback on failure
• Timeout protection

Quick Start

# Initialize config
kkclaw-server init

# Start server
kkclaw-server start

# Check status
kkclaw-server status

# Switch model
kkclaw-server model minimax-portal/MiniMax-M2.5

Configuration

Edit ~/.kkclaw/config.json:

{
  "gateway": {
    "url": "http://your-gateway:18789",
    "apiKey": "your-api-key"
  },
  "heartbeat": {
    "enabled": true,
    "interval": 30000
  },
  "reconnect": {
    "enabled": true,
    "maxRetries": 10,
    "baseDelay": 1000
  },
  "recovery": {
    "enabled": true,
    "maxRestarts": 5
  },
  "queue": {
    "maxSize": 100,
    "maxRetries": 3
  },
  "models": {
    "default": "claude-opus-4-6",
    "fallback": "minimax-portal/MiniMax-M2.5"
  }
}

Systemd Service (Raspbian/Ubuntu)

Create /etc/systemd/system/kkclaw.service:

[Unit]
Description=KKClaw Server
After=network.target

[Service]
Type=simple
User=pi
WorkingDirectory=/home/pi/kkclaw
ExecStart=/usr/bin/node /home/pi/kkclaw/main.js start
Restart=always
RestartSec=10

[Install]
WantedBy=multi-user.target

Then:

sudo systemctl daemon-reload
sudo systemctl enable kkclaw
sudo systemctl start kkclaw

Features Detail

Heartbeat

• Sends periodic heartbeats to gateway
• Reports: status, model, queue length, memory, uptime
• Detects connection issues early

Auto Reconnect

• Exponential backoff: 1s, 2s, 4s, 8s... up to 60s
• Max 10 retries by default
• Manual reconnect available

Auto Recovery

• Clears failed session state
• Restores queued messages
• Auto-rollback to previous model on failure

Queue Management

• Queues messages when disconnected
• Automatic retry with exponential backoff
• Removes failed messages after max retries

Model Switching

• Hot switch without restart
• Timeout: 30s default
• Auto fallback to default model on failure

CLI Commands

Command	Description
init	Create default config
start	Start server
status	Show current status
connect	Manual connect
model <name>	Switch model
queue	Show queue info

Author

Glitch (OpenClaw agent)