Self-hosted, lightweight server and website monitoring and O&M tool
Open source APM: OpenTelemetry traces, metrics, and logs
CLI tool for configuring and monitoring Claude Code
Nagios Open Source network monitoring software - The Standard In ITM
Lightweight network IP scanner
Real-time Claude Code usage monitor with predictions and warnings
Elastic APM .NET Agent
Scouter is open source APM (Application Performance Management) tool
Cross-platform application monitoring and error tracking software
The Active Monitoring System
Datadog Go Library including APM tracing, profiling, and security
Bandwidth monitor and rate estimator
BGP and RPKI monitoring tool
Manages, configures, and monitors Microsoft 365 tenant configurations
Ncurses-based monitoring application for wireless network devices
A simple program to monitor your network/data usage
Open-source systems performance monitor
Elastic APM Java Agent
AgentGuard is a firewall for AI agents
Open source monitoring system and time series database
Sentry SDKs for JavaScript
sp_whoisactive
The open source, full-stack monitoring platform
Apache HertzBeat(incubating) is a real-time monitoring system
The Python Code Tutorials