* [OpenTelemetry Collector v0.148.0](https://github.com/open-telemetry/opentelemetry-collector) – Vendor-agnostic implementation for receiving, processing, and exporting telemetry data.

* [Probe v1.16.0](https://github.com/petaki/probe) – Lightweight Go agent for monitoring system resources, tailing logs, and sending webhook alarms.

* [Coroot-node-agent v1.29.0](https://github.com/coroot/coroot-node-agent) – Prometheus-format exporter using eBPF to collect node and container metrics, including TCP traces, log patterns, delay accounting and OOM events.

* [K U L A 0.10.0](https://github.com/c0m4r/kula) – Lightweight self-contained Linux server monitoring tool that reads system interfaces, stores metrics in tiered ring-buffer files, and serves real-time Web and terminal dashboards.

* [Instana Node.js Tracer Monorepo v5.4.0](https://github.com/instana/nodejs) – Repository hosting Instana's Node.js tracer packages for server and serverless environments.

* [Kener v4.0.18](https://github.com/rajnandan1/kener) – Sleek and lightweight status page system built with SvelteKit and NodeJS.

* [Telegraf v1.38.1](https://github.com/influxdata/telegraf) – Agent for collecting, processing, aggregating, and writing metrics, logs, and other data.

* [MCP PostgreSQL Operations Server 3.2.0](https://github.com/call518/MCP-PostgreSQL-Ops) – Professional MCP server for PostgreSQL database operations, monitoring, and performance analysis with version-adaptive features.

* [RubyLLM::Agents v3.11.0](https://github.com/adham90/ruby_llm-agents) – Rails engine providing an agent DSL, execution tracking, cost analytics, reliability controls, and a real-time dashboard for LLM-powered agents.

* [Checkly CLI 7.6.0](https://github.com/checkly/checkly-cli) – JavaScript/TypeScript-native workflow for coding, testing, and deploying synthetic monitoring at scale.

* [Coroot v1.18.8](https://github.com/coroot/coroot) – Observability tool that transforms application data into actionable insights.

* [Yabeda v0.16.0](https://github.com/yabeda-rb/yabeda) – Extendable solution for easy setup of monitoring in Ruby applications.

* [GPUd v0.11.2-test.0](https://github.com/leptonai/gpud) – GPU-focused monitoring and diagnostics tool that detects GPU and fabric errors and reports critical system metrics.

* [Xray Checker v1.2.4](https://github.com/kutovoys/xray-checker) – Prometheus exporter for monitoring Xray proxy servers (VLESS, VMess, Trojan, Shadowsocks), exposing metrics and health APIs.

* [Pyrra v0.9.5](https://github.com/pyrra-dev/pyrra) – SLO management and visualization for Prometheus, with error-budget calculations, burn-rate alerts, and Grafana dashboards.

* [Pulse v5.1.24](https://github.com/rcourtman/Pulse) – Lightweight monitoring application for Proxmox VE that displays real-time status for VMs and containers via a web interface.

* [Kubenurse v1.15.2](https://github.com/postfinance/kubenurse) – Kubernetes network monitoring service that measures request durations, records errors, and exports Prometheus metrics.

* [pg_stat_ch v0.3.1](https://github.com/ClickHouse/pg_stat_ch) – PostgreSQL extension capturing per-query execution telemetry and exporting raw events to ClickHouse for analytical aggregation.

* [Pixie release/vizier/v0.14...](https://github.com/pixie-io/pixie) – Kubernetes-native observability platform that auto-collects eBPF telemetry, stores data in-cluster, and provides scriptable queries and visualizations.

* [Tracecat 1.0.0-beta.34](https://github.com/TracecatHQ/tracecat) – Modern automation platform for security and IT engineers with YAML templates, no-code workflows, lookup tables, and case management.

* [Glouton 26.03.17.173254](https://github.com/bleemeo/glouton) – Monitoring agent collecting metrics from exporters and services, exposing a Prometheus endpoint and integrated dashboard.

* [Canary checker v1.1.3-beta.90](https://github.com/flanksource/canary-checker) – Kubernetes-native platform for defining, running, and monitoring passive and synthetic health checks across applications and infrastructure.