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I/O engine with some modules

Realistic synthetic events for testing, demos, and pipelines — streamed live or generated in bulk

🇺🇦🇵🇱 A static analysis tool for OpenTelemetry Collector configurations. Built on OPA/Rego, it validates your pipelines, receivers, processors, and exporters against customizable policy rules – catching misconfigurations before they reach production

Observability for AI coding assistants — cost tracking, efficiency scoring, and anti-pattern detection for Claude Code, Cursor, Copilot, and more. Local-first; New Relic optional.

Soda SQL and Soda Spark have been deprecated and replaced by Soda Core. docs.soda.io/soda-core/overview.html

Unified observability for logs, metrics and traces — low overhead instrumentation (Rust, Unreal Engine 5), OTLP ingestion, SQL analytics on DataFusion over Parquet, presentation through notebooks, Grafana and Python. Self-hosted.

Open-source observability for your LLM application.

Lightweight cost observability for every API call in your stack. Track LLM tokens, database ops, and external services from your terminal.

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

Lightweight self-hosted telemetry: errors, events, sessions, and a dashboard. Fastify API, Next.js UI, PostgreSQL, @telemetry-tracker/* SDKs.

Free, read-only GPU waste scanner for Kubernetes inference clusters, by Paralleliq. Finds idle GPUs, oversized GPU tiers and wasted capacity in vLLM deployments.

a modular tool and framework for load generation that supports HTTP/2

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.

Python SDK for accurate and verifiable agent tool use. Agents verify that answers came from the right source and were not changed. Downstream agents detect 100% of errors and retry to achieve a 50% jump in answer accuracy.

Generate the complete reliability stack from a service spec in 5 minutes. Dashboards, alerts, SLOs, PagerDuty - zero toil.

Son of Vegeta, with more skills (mainly gRPC support)

SSL Certificate Expiry Monitor - Monitor SSL certificates and get alerts before they expire

Lightweight self hosted error tracking for indie devs and startup teams. Sentry SDK compatible. 2-container. Installation within 15s.

Open-source, local observability TUI for Claude Code and Codex — context, cost, tokens, agents, tools, compactions, and code changes.

Lite version of the Observability Sandbox. An EDC flavor :-P

Open, reproducible benchmarks for crypto infrastructure: aggregators, bridges, blockchains, perps. Live data, public methodology.

Weckr SDKs and Claude Skills: TypeScript, Python, MCP server, and an installable Claude Code plugin. AI cost and margin intelligence for SaaS, per user, per feature, per LLM call.

Real-time Prometheus exporter for Duplicacy backups with live speed, progress, and completion metrics

Cold storage that queries like hot storage. High-ratio JSONL compressor with block-level random access. Query cold storage in seconds — no restore, no full decompression. 5–13% ratio on JSONL logs, 25–57% smaller than gzip. 1-hour window via DuckDB in under 6s. Free for personal and open-source use.

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

Unified observability gateway for AI agents — one MCP server for Prometheus, Loki, and any backend, with cross-signal anomaly detection and a built-in Web UI.

Local replay debugger for Browser Use failures with screenshots, model I/O, failed-step timelines, and public-safe HTML exports.

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

Compact centralized logging: POST /logs -> Go gateway -> ClickHouse. Built for a ~1 GB RAM VPS, stdlib-only gateway.

Chat-driven Prometheus visualization with one-click Grafana export. Self-hosted, single image, bring your own LLM.