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.

Use case

Activity

Sort by

75 entries in this view.

Tool ranking

Ranked by known GitHub stars, highest first; archived repositories come after maintained repositories. 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

    Other
    Active

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

    GoLicense: GPL-3.0
    • ai
    • alerting
    • cncf
    • data-visualization
    • database

    githubmeasured growthOpen source ↗

    80 412GitHub stars+85 (+0.11 %)
  2. 2

    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…

    TypeScript
    • apm
    • application-monitoring
    • distributed-tracing
    • go
    • good-first-issue

    githubmeasured growthOpen source ↗

    32 003GitHub stars+50 (+0.16 %)
  3. 3

    Agent
    Active

    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…

    PythonLicense: Apache-2.0
    • agentops
    • agents
    • ai
    • ai-governance
    • apache-spark

    githubmeasured growthOpen source ↗

    27 783GitHub stars+82 (+0.30 %)
  4. 4

    Other
    Active

    Mastra is the modern TypeScript framework for AI-powered applications and agents.

    TypeScript
    • agents
    • ai
    • chatbots
    • evals
    • javascript

    githubmeasured growthOpen source ↗

    27 658GitHub stars+128 (+0.46 %)
  5. 5

    Other
    Active

    eBPF-based Networking, Security, and Observability

    GoLicense: Apache-2.0
    • bpf
    • cncf
    • cni
    • containers
    • ebpf

    githubmeasured growthOpen source ↗

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

    Other
    Active

    Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, DeepSeek, and more. Simple declarative configs with command line and CI/CD integration. Used by OpenAI…

    TypeScriptLicense: MIT
    • ci
    • ci-cd
    • cicd
    • evaluation
    • evaluation-framework

    githubmeasured growthOpen source ↗

    24 768GitHub stars+142 (+0.58 %)
  7. 7

    Library
    Active

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

    PythonLicense: Apache-2.0
    • automation
    • data
    • data-engineering
    • data-ops
    • data-science

    githubmeasured growthOpen source ↗

    23 766GitHub stars+66 (+0.28 %)
  8. 8

    Other
    Active

    A high-performance observability data pipeline.

    RustLicense: MPL-2.0
    • agent
    • cloud-native
    • data-transformation
    • datadog
    • etl

    githubmeasured growthOpen source ↗

    22 509GitHub stars+40 (+0.18 %)
  9. 9

    Other
    Active

    Open source observability platform for logs, metrics, traces, frontend monitoring, pipelines and LLM observability. A sophisticated, simple and highly performant alternative to Datadog, Splunk, and Elasticsearch with 140x lower storage…

    TypeScriptLicense: AGPL-3.0
    • analytics
    • apm
    • datadog
    • elasticsearch
    • grafana

    githubmeasured growthOpen source ↗

    21 615GitHub stars+96 (+0.45 %)
  10. 10

    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.

    GoLicense: Apache-2.0
    • cloud-native
    • devops
    • docker
    • ebpf
    • golang

    githubmeasured growthOpen source ↗

    12 068GitHub stars+8 (+0.07 %)
  11. 11

    Other
    Active

    the LLM vulnerability scanner

    PythonLicense: Apache-2.0
    • ai
    • llm-evaluation
    • llm-security
    • security-scanners
    • vulnerability-assessment

    githubmeasured growthOpen source ↗

    9 079GitHub stars+31 (+0.34 %)
  12. 12

    MCP
    Active

    🫖 Status page with uptime monitoring & API monitoring as code 🫖

    TypeScriptLicense: AGPL-3.0
    • alerting
    • incident-management
    • mcp
    • mcp-server
    • monitoring

    githubmeasured growthOpen source ↗

    9 056GitHub stars+31 (+0.34 %)
  13. 13

    Skill
    Active

    YAO = Yielding AI Outcomes. A rigorous engineering, evaluation, governance, and portability system for reusable agent skills.

    PythonLicense: MIT
    • agent-skills
    • ai-agents
    • evaluation
    • governance
    • meta-skill

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/yaojingang/yao-meta-skill ~/.claude/skills/yao-meta-skill

    2 577GitHub stars+35 (+1.4 %)
  14. 14

    Skill
    Active

    Build tested agent skills and govern their lifecycle through a user-defined marketplace: evidence, discovery, updates, rollback, quarantine, and 17-platform distribution.

    PythonLicense: MIT
    • agent-skills
    • ai-agents
    • claude-code
    • codex
    • cursor

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/FrancyJGLisboa/agent-skill-creator ~/.claude/skills/agent-skill-creator

    2 367GitHub stars+28 (+1.2 %)
  15. 15

    MCP
    Active

    A Go framework for building production agent systems with graph workflows, tools, memory, A2A, AG-UI, MCP, evaluation, and observability.

    GoLicense: Apache-2.0
    • a2a
    • a2a-protocol
    • ag-ui
    • agent
    • agent-framework

    githubmeasured growthOpen source ↗

    1 759GitHub stars+18 (+1.0 %)
  16. 16

    Other
    Active

    Open-source observability tool that uses AI agents to self-heal your software

    TypeScriptLicense: Apache-2.0
    • ai
    • llm
    • memory
    • observability
    • opentelemetry

    githubmeasured growthOpen source ↗

    1 404GitHub stars+2 (+0.14 %)
  17. 17

    Other
    Active

    AI SRE AgenticOps for Kubernetes and cloud infrastructure.

    Python
    • agenticops
    • ai
    • aiops
    • aisre
    • cloud

    githubmeasured growthOpen source ↗

    782GitHub stars+1 (+0.13 %)
  18. 18

    Skill
    Active

    A test runner for agentskills.io-style AI agent skills

    TypeScriptLicense: MIT
    • agent-evals
    • agent-skills
    • agentskills
    • ai-agents
    • cli

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/darkrishabh/agent-skills-eval ~/.claude/skills/agent-skills-eval

    719GitHub stars+13 (+1.8 %)
  19. 19

    Agent
    Active

    DataBuff is an AI-native APM built on Opentelemetry，with multi-agent troubleshooting out of the box.

    JavaLicense: AGPL-3.0
    • aiops
    • apm
    • application-monitoring
    • devops
    • distributed-tracing

    githubmeasured growthOpen source ↗

    642GitHub stars+32 (+5.2 %)
  20. 20

    Skill
    Active

    Open-source infrastructure that turns scattered SKILL.md files into curated, retrieval-ready agent-skill corpora—with retrieval and evaluation tooling included.

    PythonLicense: Apache-2.0
    • agent-memory
    • agent-skills
    • ai-agents
    • benchmark
    • dataset

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/EverMind-AI/SkillCorpus ~/.claude/skills/SkillCorpus

    424GitHub stars+170 (+66.9 %)
  21. 21

    Skill
    Active

    Multi-tier framework for evaluating AI agent skills with quality gates, semantic overlap detection, synthetic evaluation dataset generation, and live agent evaluation that measures how skills affect agent behavior.

    PythonLicense: Apache-2.0
    • agent-evaluation
    • agent-security
    • agent-skills
    • agentic-ai
    • benchmark

    githubmeasured growthOpen source ↗

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

    389GitHub stars+57 (+17.2 %)
  22. 22

    Skill
    Active

    Dashboard for monitoring claude code sessions.

    PythonLicense: Apache-2.0
    • agents
    • agentskills
    • claude-code
    • claude-code-plugin
    • claude-code-skills

    githubmeasured growthOpen source ↗

    Install /plugin marketplace add JayantDevkar/claude-code-karma

    323GitHub stars+2 (+0.62 %)
  23. 23

    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.

    RustLicense: Apache-2.0
    • a2a
    • ai-agent-framework
    • ai-agents
    • ai-sre
    • aiops

    githubmeasured growthOpen source ↗

    254GitHub stars-3 (-1.2 %)
  24. 24

    Skill
    Active

    🪢 Langfuse documentation -- Langfuse is the open source LLM Engineering Platform. Observability, evals, prompt management, playground and metrics to debug and improve LLM apps

    MDXLicense: MIT
    • agent-skills
    • agents
    • genai
    • hacktoberfest
    • langfuse

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/langfuse/langfuse-docs ~/.claude/skills/langfuse-docs

    239GitHub stars+3 (+1.3 %)
  25. 25

    Skill
    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.

    PythonLicense: GPL-3.0
    • a2a-protocol
    • ag-ui-protocol
    • agent-platform
    • agentic-ai
    • agents

    githubmeasured growthOpen source ↗

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

    198GitHub stars-1 (-0.50 %)