Build, Evaluate, and Optimize AI Systems. Includes evals, RAG, agents, fine-tuning, synthetic data generation, dataset management, MCP, and more.
Kiln is a desktop workbench and open-source Python library covering the full AI development cycle, including an Eval Builder that auto-generates judge models and synthetic evaluation datasets, an Auto-Optimize feature that tests prompt variants, model selection, and agent configurations to find the best-performing setup, drag-and-drop RAG creation from PDFs, images, video, and audio, zero-code fine-tuning across 60-plus models on Fireworks, Together, and Vertex with serverless deployment, and multi-agent composition via subagents each running in isolated context windows. It exposes an MCP server so Claude Code and other MCP-compatible clients can interact with Kiln tasks and tools directly. The desktop app runs on Mac, Windows, and Linux with one-click installation, stores project data in a Git-native format so non-technical teammates like product managers and domain experts can rate outputs and contribute datasets without writing code, and supports fully offline use via Ollama. The MIT-licensed Python library lets agents built in the app ship straight to production.
- ✓License: NOASSERTION
- ✓Actively maintained (<30d)
- ✓Healthy fork ratio
- ✓Clear description
- ✓Topics declared
- ✓Mature repo (>1y old)
claude mcp add kiln -- uvx kiln{
"mcpServers": {
"kiln": {
"command": "uvx",
"args": ["kiln"]
}
}
}MCP Servers overview
What people ask about Kiln
What is Kiln-AI/Kiln?
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Kiln-AI/Kiln is mcp servers for the Claude AI ecosystem. Build, Evaluate, and Optimize AI Systems. Includes evals, RAG, agents, fine-tuning, synthetic data generation, dataset management, MCP, and more. It has 4.9k GitHub stars and was last updated today.
How do I install Kiln?
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You can install Kiln by cloning the repository (https://github.com/Kiln-AI/Kiln) or following the README instructions on GitHub. ClaudeWave also provides quick install blocks on this page.
Is Kiln-AI/Kiln safe to use?
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Our security agent has analyzed Kiln-AI/Kiln and assigned a Trust Score of 100/100 (tier: Verified). See the full breakdown of passed checks and flags on this page.
Who maintains Kiln-AI/Kiln?
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Kiln-AI/Kiln is maintained by Kiln-AI. The last recorded GitHub activity is from today, with 67 open issues.
Are there alternatives to Kiln?
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Yes. On ClaudeWave you can browse similar mcp servers at /categories/mcp, sorted by popularity or recent activity.
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