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SigNoz is an open-source, OpenTelemetry-native observability platform for your team and their AI agents. Get logs, metrics, and traces in one tool with features like APM, distributed tracing, log management, infra monitoring, etc. Combined with SigNoz MCP and a native AI teammate (in SigNoz Cloud) it helps you build more resilient apps.

CNCF Jaeger, a Distributed Tracing Platform

CAT 作为服务端项目基础组件，提供了 Java, C/C++, Node.js, Python, Go 等多语言客户端，已经在美团点评的基础架构中间件框架（MVC框架，RPC框架，数据库框架，缓存框架等，消息队列，配置系统等）深度集成，为美团点评各业务线提供系统丰富的性能指标、健康状况、实时告警等。

Zipkin is a distributed tracing system

APM, (Application Performance Management) tool for large-scale distributed systems.

High-level tracing language for Linux

highlight.io: The open source, full-stack monitoring platform. Error monitoring, session replay, logging, distributed tracing, and more.

Coroot is an open-source observability and APM tool with AI-powered Root Cause Analysis. It combines metrics, logs, traces, continuous profiling, and SLO-based alerting with predefined dashboards and inspections.

OpenTelemetry Go API and SDK

Hubble - Network, Service & Security Observability for Kubernetes using eBPF

Open source APM: OpenTelemetry traces, metrics, and logs

Observe any stack, any service and any data, using any UI components you prefer, never missing any X factors and resolve them before they become real problems.

Observe any stack, any service and any data, using any UI components you prefer, never missing any X factors and resolve them before they become real problems.

The Rust OpenTelemetry implementation

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.

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. 🚀💻📊

OpenTelemetry Instrumentation for AI Observability

DataBuff is an AI-native APM built on Opentelemetry，with multi-agent troubleshooting out of the box.

Inject an ID into every log message from a Django request. ASGI compatible, integrates with Sentry, and works with Celery

React components for visualizing traces from AI agents

APO is a comprehensive observability platform combining OpenTelemetry with eBPF. Leveraging LLM to enable automated analysis and troubleshooting 🚀.

Writing eBPF in Zig

A Model Context Protocol (MCP) server for Langfuse, enabling AI agents to query Langfuse trace data for enhanced debugging and observability

eBPF agent and MCP server for GPU causal observability

A dynamic binary instrumentation tool for tracing and analyzing GPU kernel instructions.

Self-hosted observability platform — error tracking, performance tracing, metrics, uptime monitoring, and profiling.

Diff your AI agent's behavior between two runs. See exactly which tool calls, args, costs and outputs changed when you swap models or edit prompts.

Local-first observability dashboard for AI agents. MCP-native. Look at every span your agents emit.

Local-first DevTools for AI calls. See every LLM call your app makes: prompt, cost, tokens, latency, tool calls.

Node.js boilerplate. Docker and Kubernetes ready. Observability (health, logs, metrics, traces) included.