Awesome Observability

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.

Zipkin is a distributed tracing system

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

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

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.

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. 🚀💻📊

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

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.

Production-ready OpenTelemetry Collector configs, validated in CI and pinned to otelcol-contrib 0.161.0: hardened OTLP agent, file logs to Loki, basic PII redaction with OTTL. Docker Compose included. MIT.

Always-on request tracing for PHP. Every request recorded — time, SQL fingerprints, outbound HTTP, errors, N+1 — by a C extension plus a single-binary Go collector. Runs on shared hosting, no root needed. Apache-2.0.