tracing

Open-source, end-to-end platform for evaluating, observing, and improving LLM and AI agent applications. Tracing · Evals · Simulations · Datasets · Gateway · Guardrails. Self-hostable. Apache 2.0.

Monoscope lets you ingest and explore your logs, traces and metrics. We store these in S3 compatible buckets. Query in natural language via LLMs.

⭐️ The Open-Source Polyglot Observability Warehouse: Light, Fast, Cloud Native, Drop-in Grafana LGTMP alternative :rocket: Indie All-in-One Opentelemetry, Loki, Prometheus, Tempo, Pyroscope On-Prem Alternative :star:

📱⚡️ 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...

Web UI for Jaeger

Collection of functions and scripts to debug Erlang in production.

Distributed Tracing, Metrics and Context Propagation for applications running on the JVM

Go execution trace frontend

🔭 Tracetest - Build integration and end-to-end tests in minutes, instead of days, using OpenTelemetry and trace-based testing.

A reactive Python kernel for Jupyter notebooks.

Langtrace 🔍 is an open-source, Open Telemetry based end-to-end observability tool for LLM applications, providing real-time tracing, evaluations and metrics for popular LLMs, LLM frameworks, vectorDBs and more.. Integrate using Typescript, Python. 🚀💻📊

Istio Tutorial for https://dn.dev/master

OpenTelemetry Instrumentation for AI Observability

Eliot: the logging system that tells you *why* it happened

Trace-native CI/CD for AI agents — production failures become regression tests that block the PR. Auto-detect, cluster, freeze into hermetic cases, replay in CI for $0.

Give your coding agent the power to write and run agent evals.

OpenTelemetry Auto Instrumentation using eBPF

Filesystem monitor tool for Linux/Android iOS/macOS

🟢 Super-fast, tiny C/C++ tracing with printf look-and-feel, even in interrupts ⚡, plus real-time PC logging 💻

A curated list of OpenTelemetry resources

Golang Clean Architecture REST API example

A real-time global illumination implementation using voxel cone tracing. Implemented in C++ and GLSL.

The OpenTelemetry PHP Library

OpenTelemetry Compile-Time Instrumentation for Golang

Datadog Go Library including APM tracing, profiling, and security monitoring.

Datadog APM client for Node.js

Easily add metrics to your code that actually help you spot and debug issues in production. Built on Prometheus and OpenTelemetry.

Debug your AI agents

open source agent engineering platform: traces, evals, and metrics to debug and improve your AI agents. Integrates with LangGraph, CrewAI, Claude Agent SDK, and more.

INFRASTRUCTURE、OPERATION SYSTEM and APPLICATION monitoring tools.