LLM observability: tools for developers

Monitoring, traces, evaluation and quality tracking for LLM applications. An entry can appear under several use cases when its topics or description provide several explicit signals.

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120 entries in this view.

Tool ranking

Ranked by measured growth, normalized across sources. Raw values keep their source-specific window, shown under each tool; a change requires at least two snapshots from the last 7 days.

  1. 1

    Library
    Active

    Prefect is a workflow orchestration framework for building resilient data pipelines in Python.

    githubmeasured growthOpen source ↗

    23 766GitHub stars+66 (+0.28 %)
  2. 2

    Other
    Active

    A high-performance observability data pipeline.

    githubmeasured growthOpen source ↗

    22 509GitHub stars+40 (+0.18 %)
  3. 3

    Other
    Active

    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…

    githubmeasured growthOpen source ↗

    32 003GitHub stars+50 (+0.16 %)
  4. 4

    Other
    Active

    AI SRE AgenticOps for Kubernetes and cloud infrastructure.

    githubmeasured growthOpen source ↗

    782GitHub stars+1 (+0.13 %)
  5. 5

    Other
    Active

    eBPF-based Networking, Security, and Observability

    githubmeasured growthOpen source ↗

    25 047GitHub stars+29 (+0.12 %)
  6. 6

    Skill
    Active

    A skill creator that proves its skills work. Evidence-driven skill creation for Claude Code and Codex: baseline-tested generation, per-skill regression evals, ecosystem doctor, cross-runtime compile, and an opt-in proactive advisor.

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/tripleyak/SkillForge ~/.claude/skills/SkillForge

    884GitHub stars+1 (+0.11 %)
  7. 7

    Other
    Active

    The fastest path to AI-powered full stack observability, even for lean teams.

    githubmeasured growthOpen source ↗

    80 412GitHub stars+85 (+0.11 %)
  8. 8

    Agent
    Active

    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.

    githubmeasured growthOpen source ↗

    12 068GitHub stars+8 (+0.07 %)
  9. 9

    Skill
    Active

    The container platform tailored for Kubernetes multi-cloud, datacenter, and edge management ⎈ 🖥 ☁️

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/kubesphere/kubesphere ~/.claude/skills/kubesphere

    17 037GitHub stars+8 (+0.05 %)
  10. 10
    Active

    A Model Context Protocol (MCP) server for Langfuse, enabling AI agents to query Langfuse trace data for enhanced debugging and observability

    githubmeasured growthOpen source ↗

    105GitHub starsstable
  11. 11

    Skill
    Dormant

    Don't make LLMs honest. Make every factual claim auditable. — An LLM Claim Auditing Layer with T1-T7 truth gradients. 98.1% business effectiveness on LiarBench v0.2.

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/lc198707/anti-lie ~/.claude/skills/anti-lie

    89GitHub starsstable
  12. 12
    Active

    MCP server for Langfuse LLM observability — trace and observation analysis.

    mcpmeasured growthOpen source ↗

    Install claude mcp add langfuse -- npx langfuse-observability-mcp-server

    78GitHub starsstable
  13. 13
    Active

    AgentX python SDK. Build multi-agent AI workforce. Run evaluation. Trace your agent. Full Observability.

    githubmeasured growthOpen source ↗

    68GitHub starsstable
  14. 14
    Active

    🟪 Open-source runtime that ships any LangGraph or Google ADK agent as a production-ready FastAPI service. Bundled , AG-UI copilotkit API, chat UI, 15+ guardrails, MCP, OpenTelemetry, OIDC. One pip install. Self-hosted, no vendor lock-in.

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/Idun-Group/idun-agent-platform ~/.claude/skills/idun-agent-platform

    198GitHub stars-1 (-0.50 %)
  15. 15

    MCP
    Active

    AURA is a production-tested SRE agent platform you can deploy in minutes. AURA handles the guardrails, APIs, state management, streaming, and failure handling required to put AI to work safely on production infrastructure.

    githubmeasured growthOpen source ↗

    254GitHub stars-3 (-1.2 %)
  16. 16
    Active

    Self-hosted AI SRE for Kubernetes — zero-instrumentation eBPF observability plus a copilot that fixes issues through guardrailed, self-verifying actions. BYO-LLM, air-gapped capable.

    githubmeasured growthOpen source ↗

    131GitHub stars-4 (-3.0 %)
  17. 17
    Active

    74 open-source Agent Skills for Claude Code and Codex: AI SEO, AEO and GEO, code review with an A-F ship grade, CI gates, AI evals, design systems, conversion copy, Instagram growth, iOS and Android app shipping, creator rights, and…

    githubmeasured growthOpen source ↗

    129GitHub stars-4 (-3.0 %)
  18. 18
    Active

    Open benchmark for Claude Code SEO skills — real headless execution against fixture sites with planted-defect answer keys. Deterministic scoring, pre-registered rubric.

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/aleclindz/seo-skill-bench ~/.claude/skills/seo-skill-bench

    51GitHub stars-5 (-8.9 %)
  19. 19
    Active

    Production reliability, benchmarking, and evaluation layer for MCP agent runtimes — protocol negotiation, A2A interop, circuit breakers, connection pooling, adaptive streaming, and autoscaling, with measured throughput/latency and a…

    githubmeasured growthOpen source ↗

    3GitHub starsstable
  20. 20

    Skill
    Dormant

    An assembly line for AI software development. 35 skills, 11 agent personas, 29 commands. From raw idea to shipped code.

    githubmeasured growthOpen source ↗

    Install /plugin marketplace add aneja5/forge-skills

    3GitHub starsstable
  21. 21
    Active

    Architecture-first Python scaffold for an auditable multi-agent corporate credit desk using A2A, MCP, deterministic credit policies, model routing, and OpenTelemetry.

    githubmeasured growthOpen source ↗

    0GitHub starsstable
  22. 22

    Agent
    Active

    Multi-agent SRE on-call investigator that auto-triages Slack/Discord infrastructure alerts via AWS Bedrock AgentCore, fanning out to specialized agents (CloudWatch, EKS, Slack/Discord scanners) for parallel investigation.

    githubmeasured growthOpen source ↗

    3GitHub starsstable
  23. 23

    Agent
    Active

    Generic DeepSeek Harness (dsh) plugins: A2A protocol server, session storage mirror, and Langfuse observability.

    githubmeasured growthOpen source ↗

    1GitHub starsstable
  24. 24

    MCP
    Active

    A typed, replayable, budget-aware programming language for LLM agents. Compiles to Python & TypeScript.

    githubmeasured growthOpen source ↗

    2GitHub starsstable

Learning resources

Ranked by measured growth, normalized across sources. These resources remain available separately and do not take part in the main tool ranking.

  1. 1
    ActiveOpen source ↗

    Curated + scored map of official MCP servers and agents for DevOps, Cloud, SRE, and Platform Engineering — every entry rated on production access, approval gates, and audit evidence.

    githubResourcemeasured growth
    77GitHub starsstable