Metrics, Tracing & APM Packages
Metrics, distributed tracing, and application-performance monitoring libraries for understanding production behavior at scale (OpenTelemetry, Prometheus).
Packages in Metrics, Tracing & APM
Kind
Sort:Used by Most Apps
OpenTelemetry Instrumentation for Logging
Automatic OpenTelemetry trace context injection into Python's standard logging module
OpenTelemetry Instrumentation for Redis
Automatic distributed tracing for Python's redis client, including async and sync APIs
NestJS Terminus
The official health-check module for NestJS applications
why-did-you-render
Monkey-patches React to flag avoidable re-renders caused by unchanged props, state, or hooks.
OpenTelemetry Instrumentation for Google Generative AI
OpenTelemetry auto-instrumentation for Google Gemini and Generative AI calls in Python
console-subscriber
tracing-subscriber Layer that powers tokio-console, a debugger for async Rust
OpenInference MCP Instrumentation
OpenTelemetry auto-instrumentation for the Model Context Protocol (MCP) Python SDK that propagates trace context across tool calls.
wandb
Official Python SDK and CLI for the Weights & Biases ML experiment tracking platform
fgprof
A sampling wall-clock profiler for Go that captures both On-CPU computation and Off-CPU waiting time in a single pprof-compatible profile.
httpsnoop
Captures HTTP status code, duration, and bytes written from Go handlers without breaking ResponseWriter's optional interfaces.
LangSmith Python SDK
The official Python client for tracing, evaluating, and monitoring LLM applications on the LangSmith platform.
axiom-js
Official TypeScript/JavaScript client for ingesting and querying data with the Axiom observability platform.
Arize Phoenix
Open-source AI observability and evaluation platform for LLM apps and agents
pprof
The visualization and analysis tool for profile.proto performance profiles, with interactive, graph, and web-based views.
ebpf
A pure Go library for loading, inspecting, and attaching eBPF programs to Linux kernel hooks.
Laravel Telescope
Official Laravel debug assistant that records requests, queries, jobs, mail, and more into a local dashboard
Weave
Open-source tracing, evaluation, and observability toolkit for building and debugging LLM-powered applications.
procfs
Go library for reading Linux kernel, process, and system metrics straight from /proc and /sys.
OpenTelemetry Google Cloud Trace Exporter
Sends OpenTelemetry spans from Node.js applications straight to Google Cloud Trace over gRPC.
MLflow
Open source AI engineering platform for tracking, evaluating, and shipping ML models, LLMs, and agents to production.
Opik
Python SDK for tracing, evaluating, and monitoring LLM applications, RAG pipelines, and agentic workflows.
django-debug-toolbar
A configurable panel of SQL queries, request timing, cache calls, and template data injected into every page for debugging Django apps.
OpenTelemetry Instrumentation for Anthropic
OpenTelemetry auto-instrumentation for the Anthropic Python SDK, tracing prompts and completions
Pydantic Logfire
Python observability SDK from the Pydantic team, built on OpenTelemetry for tracing, metrics, and logs.
