Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
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OpenTelemetry JavaScript (@opentelemetry/api)
Vendor-neutral tracing, metrics, and context API that libraries and apps instrument once, so any OpenTelemetry-compatible backend can consume it.
undici
A fast, spec-compliant HTTP/1.1 client for Node.js, built from scratch with zero runtime dependencies
tracing
Structured, application-level diagnostics for async Rust programs, built around scoped spans and events.
urllib3
A powerful, user-friendly HTTP client for Python with thread-safe connection pooling, TLS verification, and retry handling.
proxy-agent
Maps HTTP, HTTPS, SOCKS, and PAC proxy protocols to the correct Node.js http.Agent implementation automatically.
OpenTelemetry Auto-Instrumentations for Node.js
Zero-code observability for Node.js apps, bundling every OpenTelemetry contrib instrumentation into a single metapackage.
psutil
Cross-platform Python library for retrieving process and system utilization data.
OpenTelemetry Prometheus Exporter
Export OpenTelemetry metrics in Prometheus format so Prometheus can scrape your Python application.
@clickhouse/client
The official TypeScript client for connecting Node.js applications to ClickHouse over HTTP.
OpenTelemetry Python SDK
The reference implementation of the OpenTelemetry API for Python - traces, metrics, and logs
prom-client
The de facto Prometheus client library for instrumenting Node.js applications with counters, gauges, histograms, and summaries.
web-vitals
web-vitals: Measure Core Web Vitals in the Browser
http-proxy-middleware
The one-liner Node.js proxy middleware for connect, express, next.js, hono, and more.
forge
A native, pure-JavaScript implementation of TLS and PKI cryptography for building crypto-based Node.js and browser apps.
got
Human-friendly and powerful HTTP request library for Node.js, with retries, streams, pagination, and RFC 7234 caching built in.