Kastor
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Terraform-style source-of-truth layer for AI agents: HCL specs, LangGraph codegen, and plan/apply/state for hosted agents.
Cost / License
- Free
- Open Source (Apache-2.0)
Platforms
- Go (Programming Language)
- Python
- Mac
- Windows
- Linux
- Homebrew
Features
Kastor News & Activities
Highlights All activities
Recent activities
POX added Kastor as alternative to Sim Studio, Rivet AI, Agentic Signal and Dify - LLMOps Platform- POX added Kastor
Kastor information
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What is Kastor?
Kastor is a source-of-truth layer for AI agents.
Define agents, tools, prompts, models, and targets in HCL. Validate the spec. Compile it to runnable framework code. Later, reconcile hosted agents with Terraform-style plan / apply / state.
Agents today are often split across framework code, prompt files, tool files, platform UI settings, and environment configuration. Kastor's idea is that agents need a versionable, reviewable, declarative contract before they become serious software.



