OpenObserve is an open-source observability platform for logs, metrics, traces, and frontend monitoring. A cost-effective alternative to Datadog, Splunk, and Elasticsearch with 140x lower storage costs and single binary deployment.

SigNoz is an open-source observability platform native to OpenTelemetry with logs, traces and metrics in a single application. An open-source alternative to DataDog, NewRelic, etc. 🔥 🖥. 👉 Open source Application Performance Monitoring (APM) & Observability tool

A repo for testing/experimenting with Nest.JS, used to create a Nest.JS API that is containerized, has a helm chart, has elastic apm. Used for deploying into kubernetes to test and evaluate elastic apm.

🟩 AppSignal for Node.js

Datadog MCP server — 46 tools for metrics, monitors, logs, APM, RUM, synthetics, and more. Read-only by default.

Resolve production issues, fast. An open source observability platform unifying session replays, logs, metrics, traces and errors powered by ClickHouse and OpenTelemetry.

📱⚡️ Lighthouse for Mobile - audits your app and gives a performance score to your Android apps (native, React Native, Flutter..). Measure performance on CLI, E2E tests, CI...

Open source monitoring and visualization UI for the TICK stack

Mini Program Monitoring SDK (Error & Performance) for WeChat, Alipay, ByteDance, Baidu, QQ, DingTalk, Kuaishou & Taro / uni-app | 小程序监控 SDK（异常监控 + 性能监控），支持多端小程序及跨端框架

AIVory Monitor Bun Agent - Runtime exception monitoring for Bun

AIVory Monitor Deno Agent - Runtime exception monitoring for Deno

AIVory Monitor Node.js Agent - V8 Inspector based runtime monitoring

⚙️🧩🧑‍💻 TS/JS client for consuming BugSplat APIs

Enables custom tracing of Node.js applications in Dynatrace

Self-hosted frontend monitoring platform for error tracking, Web Vitals, white-screen detection, session replay, and sourcemap symbolication.

MCP server wrapping the Tideways REST API — query performance metrics, traces, and errors from AI assistants and Claude Code

Client-side JavaScript exception and tracing library for Apache SkyWalking APM.

One command, full observability

Holdfast, always and forever open source with self hosting. Zero paywall gating. Maintained by contributors.

Full-featured NewRelic MCP server with 26+ tools