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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77 entries in this view.

Tool ranking

Ranked by creation date, newest first; undated entries come last. 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

    Skill
    Active

    Vendor-neutral OpenTelemetry skills for AI coding agents, grounded in upstream sources

    ShellLicense: Apache-2.0
    • agent-skills
    • ai
    • observability
    • opentelemetry

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/ollygarden/opentelemetry-agent-skills ~/.claude/skills/opentelemetry-agent-skills

    97GitHub stars+1 (+1.0 %)
  2. 2

    Skill
    Active

    Agent skills for Arize — datasets, experiments, and traces via the ax CLI

    PythonLicense: MIT
    • agent-skills
    • ai-agents
    • ai-observability
    • arize
    • claude-code

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/Arize-ai/arize-skills ~/.claude/skills/arize-skills

    47GitHub starsstable
  3. 3

    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 ↗

    291GitHub stars+33 (+12.8 %)
  4. 4

    Skill
    Active

    local-first analytics for AI agent skills

    TypeScript
    • agent-skills
    • analytics
    • bun
    • claude-code
    • cli

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/crafter-station/skill-kit ~/.claude/skills/skill-kit

    77GitHub stars+1 (+1.3 %)
  5. 5

    Skill
    Active

    Measure prompt and skill improvements with blind A/B comparison.

    PythonLicense: MIT
    • agent-skills
    • ai-tools
    • claude-code
    • claude-code-plugin
    • claude-code-skill

    githubmeasured growthOpen source ↗

    Install /plugin marketplace add shinpr/rashomon

    18GitHub starsstable
  6. 6

    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 %)
  7. 7

    MCP
    Active

    Self improving agents through iterations

    PythonLicense: Apache-2.0
    • agent-learning
    • agent-memory
    • agentic-workflows
    • ai-agents
    • claude-code

    githubmeasured growthOpen source ↗

    105GitHub stars+1 (+0.96 %)
  8. 8

    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

    githubestimated momentumOpen source ↗

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

    2 376GitHub stars—
  9. 9

    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+20 (+0.85 %)
  10. 10

    Other
    Active

    A command-line tool to scaffold and manage enterprise-ready AI Agents powered by the A2A (Agent-to-Agent) protocol

    GoLicense: Apache-2.0
    • a2a
    • agents
    • ai
    • containerized
    • docker

    githubmeasured growthOpen source ↗

    14GitHub stars+1 (+7.7 %)
  11. 11

    Agent
    Active

    The Operating System for Scalable Enterprise AI Agents - Run, orchestrate, and deploy Compliant Enterprise AI Agents at scale across frameworks, without lock-in, rewrites or fragile glue code. Native support for MCP, A2A. Interface with all…

    PythonLicense: Apache-2.0
    • a2a
    • adk
    • ai-agents
    • aws
    • azure

    githubmeasured growthOpen source ↗

    166GitHub stars+29 (+21.2 %)
  12. 12

    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

    199GitHub starsstable
  13. 13

    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 763GitHub stars+16 (+0.92 %)
  14. 14

    MCP
    Active

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

    TypeScriptLicense: MIT

      mcpmeasured growthOpen source ↗

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

      80GitHub stars+2 (+2.6 %)
    • 15

      MCP
      Active

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

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

      githubmeasured growthOpen source ↗

      105GitHub starsstable
    • 16

      Other
      Active

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

      TypeScript
      • agents
      • ai
      • chatbots
      • evals
      • javascript

      githubmeasured growthOpen source ↗

      27 680GitHub stars+132 (+0.48 %)
    • 17

      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 059GitHub stars+31 (+0.34 %)
    • 18

      Other
      Active

      the LLM vulnerability scanner

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

      githubmeasured growthOpen source ↗

      9 106GitHub stars+40 (+0.44 %)
    • 19

      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 797GitHub stars+146 (+0.59 %)
    • 20

      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 630GitHub stars+88 (+0.41 %)
    • 21

      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+7 (+0.06 %)
    • 22

      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 010GitHub stars+52 (+0.16 %)
    • 23

      Other
      Active

      A high-performance observability data pipeline.

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

      githubmeasured growthOpen source ↗

      22 510GitHub stars+34 (+0.15 %)
    • 24

      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 772GitHub stars+61 (+0.26 %)
    • 25

      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 801GitHub stars+82 (+0.30 %)