AI DevOps & SREfree

HolmesGPT

Open-source SRE agent that investigates alerts and incidents across your observability stack

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What HolmesGPT does

  • Open-source SRE agent that investigates alerts and incidents across your observability stack
  • Connects to Prometheus, Kubernetes and logs via toolsets
  • CNCF Sandbox project; bring your own LLM

HolmesGPT — straight answers

What is HolmesGPT?

HolmesGPT is listed under AI DevOps & SRE, in the Code & Development category on Flocci AI Tools. Open-source SRE agent that investigates alerts and incidents across your observability stack. It is free, with no paid plan attached, and it lives at holmesgpt.dev.

Is HolmesGPT free?

HolmesGPT is listed as fully free — there is no paid tier attached to it in the catalog. That makes it one of the 397 entries on Flocci AI Tools with no upgrade path built in.

Can I use HolmesGPT in a browser, or is there an app?

HolmesGPT needs to be installed or self-hosted — it doesn't run in a browser tab. It is available on the command line and self-hosting.

What can HolmesGPT do?

HolmesGPT does 3 things the catalog singles out: Open-source sre agent that investigates alerts and incidents across your observability stack; connects to prometheus, kubernetes and logs via toolsets; cncf sandbox project; bring your own llm.

What is the best free alternative to HolmesGPT?

K8sGPT is the closest free alternative: it sits in the same AI DevOps & SRE sub-category and is free. The full list is on the alternatives page.

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HolmesGPT alternatives

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Cleric

AI DevOps & SRE
  • Autonomous SRE agent investigates production alerts and delivers root cause analysis in ~5 minutes
  • Read-only-by-default with gradual write access and full audit logging for safety
  • Builds cross-team 'operational memory' from past incident resolutions
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incident.io AI

AI DevOps & SRE
  • Nexus model reasons across telemetry, deployments, code and incident history simultaneously
  • Adversarial agents challenge their own root-cause hypothesis before surfacing it to responders
  • AI on-call intelligence filters alert noise and optimizes rotations to reduce burnout
Visit

K8sGPT

AI DevOps & SRE
free
  • Scans Kubernetes clusters and explains issues in plain language
  • Pluggable analyzers and AI backends including local models
  • Apache-2.0 CLI and operator
Visit

Cursor

AI IDEs & Editors
freemium
  • AI-first VS Code fork with agent mode
  • Multi-file edits and terminal commands
  • Codebase-wide context and rules
  • Free tier with limited requests
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Google Antigravity

AI IDEs & Editors
freemium
  • Google's agent-first IDE
  • Powered by Gemini 3 models
  • Autonomous multi-step coding
  • Free access tier
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Windsurf

AI IDEs & Editors
freemium
  • Agentic IDE with the Cascade flow
  • Now part of Cognition (Devin)
  • Deep whole-repo awareness
  • Free tier available
Visit

Head-to-head comparisons

HolmesGPT vs ClericHolmesGPT vs incident.io AIHolmesGPT vs K8sGPTHolmesGPT vs CursorHolmesGPT vs Google AntigravityHolmesGPT vs Windsurf