1.langfuse / langfuse
🪢 Open source agent evals & observability: Trace, evaluate, and improve LLM applications with one open platform.
Ranked by Attention Score: stars gained over the last 7 complete days
61 repositories by Attention Score · Oct 27, 2026 – Nov 2, 2026 (UTC)
🪢 Open source agent evals & observability: Trace, evaluate, and improve LLM applications with one open platform.
🕷️ The fastest open-source AI Gateway and LLM Gateway — one binary with built-in console to route, secure, budget and observe every LLM call across OpenAI, Anthropic, Gemini, Bedrock and more.
Open source observability platform for logs, metrics, traces, RUM (web, android, ios), Session replay, pipelines, SLO and LLM observability. A sophisticated, simple and highly performant alternative to Datadog, Splunk, and Elasticsearch with 140x lower storage costs and single binary deployment.
Read-only Windows diagnostics: the Event Log in plain language, blue screens explained. Offline and open source.
Tamper-evident tracing, policy gates and cross-checks for AI agents: see what the agent did, and why.
The fastest path to AI-powered full stack observability, even for lean teams.
Why is this running? Trace any process, port, container, or file back to what started it - CLI + TUI.
Self-Hosting Guide. Learn all about locally hosting (on premises & private web servers) and managing software applications by yourself or your organization. Including Cloud, LLMs, WireGuard, Automation, Home Assistant, and Networking.
An open‑source technical wiki connected to the systems it describes
VictoriaMetrics: fast, cost-effective monitoring solution and time series database
The open source AI engineering platform for agents, LLMs, and ML models. MLflow enables teams of all sizes to debug, evaluate, monitor, and optimize production-quality AI applications while controlling costs and managing access to models and data.
Build production-ready applications in TypeScript
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.
AI Agent Engineering Platform built on an Open Source TypeScript AI Agent Framework
eBPF-based Networking, Security, and Observability
Trace-native CI/CD for AI agents: grade production traces, cluster failures, freeze them into replayable regression tests, and block PRs that regress. Self-hostable.
End-to-end, code-first tutorials for building production-grade GenAI agents. From prototype to enterprise deployment.
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.
Open-source, self-hosted alerting for metrics, logs, and databases. Includes a built-in AI agent and MCP server.
Prefect is a workflow orchestration framework for building resilient data pipelines in Python.
CNCF Jaeger, a Distributed Tracing Platform
A high-performance observability data pipeline.
Apache Doris is a real-time analytics and hybrid search database for AI agents.
Aya is an eBPF library for the Rust programming language, built with a focus on developer experience and operability.
Your window into all of your data
eBPF-powered network observability for Kubernetes. Indexes L4/L7 traffic with full K8s context, decrypts TLS without keys. Queryable by AI agents via MCP and humans via dashboard.
A Go framework for building production agent systems with graph workflows, tools, memory, A2A, AG-UI, MCP, evaluation, and observability.
lightweight system-level observability for AI Agents
Open-Source Agent Observability & Evals for AI Platform teams. Trace, test, route and govern every agent & coding assistant in the company.
Capture SSL/TLS plaintext with eBPF—no MITM proxy or custom CA installation. Supports Linux and Android on x86_64 and arm64.
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.
An AI-powered next-generation open source real-time observability system.
APM, Application Performance Monitoring System
The container platform tailored for Kubernetes multi-cloud, datacenter, and edge management ⎈ 🖥 ☁️
Highly available Prometheus setup with long term storage capabilities. A CNCF Incubating project.
Zero-overhead eBPF process tracer for Linux malware triage and incident response. Traces syscalls, network, and file events per-process without strace overhead.
🕵️♂️ TUI for sniffing network traffic using eBPF on Linux
Continuous Profiling Platform. Debug performance issues down to a single line of code
The fastest unified streaming SQL Engine in a single C++ binary. ⚡ Millisecond latency. 100+ GB/s throughput. Continuously compute stateful context from streams, logs, metrics, events, and CDC.
Percona Monitoring and Management: an open source database monitoring, observability and management tool
Enterprise-ready, Git native feature management solution
Hubble - Network, Service & Security Observability for Kubernetes using eBPF
Ultra-low-latency asynchronous C++17 logging and metrics library for performance-critical applications
Zipkin is a distributed tracing system
kwatch runs inside your Kubernetes cluster, traces every failure to its root cause, and sends one message: what broke, why, who changed it and what to do next.
An extensible Java library for HTTP request and response logging
OpenTelemetry Compile-Time Instrumentation for Golang
Simple, modular, and observable Go framework for backend applications.
Centreon is a network, system and application monitoring tool. Centreon is the only AIOps Platform Providing Holistic Visibility to Complex IT Workflows from Cloud to Edge.
eBPF Security Monitoring and Sandboxing Agent Based on Aya
A curated, opinionated collection of tools and resources dedicated to Performance Engineering, covering both Observability and Performance Testing.
Instant Kubernetes-Native Application Observability
An application observability facade for the most popular observability tools. Think SLF4J, but for observability.
Automon combines the power of AOP (AspectJ) with monitoring or logging tools you already use to declaratively trace and monitor your Java code, the JDK, and 3rd party libraries.
Self-hosted monitoring for Docker, Kubernetes and uptime. Single Go binary, no agent config, live alerts. Drop a container, your stack is monitored.
Performance visualisation tools
Single-binary observability, time-series database, and built-in dashboard for Raspberry Pi, edge devices, and local metrics.
In the midst of all the tools out there that you can possibly use to keep track of them. Here's a "shovel" that just works to try them all out.
Realistic synthetic events for testing, demos, and pipelines — streamed live or generated in bulk
Local-first policy gateway for coding agents. Allow, review, or block MCP, shell, SQL, GitHub, and HTTP actions with scoped credentials and signed evidence.
Lightweight Docker monitoring dashboard with anomaly detection & Telegram alerts. One-liner install, zero config.