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Cynative

github.com/cynative/cynative Security Tools Open-source projectOpen source

Cynative provides security agents that audit cloud, code, and runtime environments for exposure and privilege issues.

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github.com/cynative/cynative
Cynative homepage screenshot

About Cynative

Cynative is an open-source framework for building and running security agents that check cloud, code and runtime environments for exposure and privilege issues. A user asks a question in natural language, and Cynative reasons across GitHub, GitLab, AWS, GCP, Azure and Kubernetes. It writes and runs code in an ephemeral sandbox to query APIs in parallel, then cross-checks each finding and traces it to its origin.

The framework ships with 45 built-in agents for AWS, GCP, Azure, GitHub and Kubernetes, covering topics such as privilege escalation, public exposure and supply chain. Users can also write their own agents as a single markdown file. The homepage describes the tool as read-only by construction, with each call gated and authorized before a credential is attached. Running it requires an LLM provider to be configured, and the quickstart shows an Anthropic API key set in the shell.

Key features

  • 45 built-in agents for AWS, GCP, Azure, GitHub and Kubernetes
  • Custom agents written as a single markdown file
  • Natural-language questions spanning code, cloud and Kubernetes resources
  • Read-only policy checked against IAM actions before a credential is attached
  • Code execution in an ephemeral sandbox with no network or host access of its own
  • Findings cross-checked and traced back to their origin
Best for: Security engineers and developers who want to audit cloud, code and Kubernetes environments using an AI model they configure themselves.
Good for
  • Open source, with the source code and a LICENSE file in the repository
  • Describes a read-only design in which every call is gated before credentials are attached
  • Findings are cross-checked against each other before being reported
Watch out for
  • Requires an LLM provider and its API key to be configured before use

Cynative at a glance

Type
Open-source project
Pricing
Not confirmed. Check the site
Open source
Yes · Source code
Language
English
Last checked
Oct 6, 2026 · Online when checked
Listed
Oct 5, 2026
open sourceai agentsdeveloper toolssecurity tools

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Cynative FAQ

How do I install Cynative?
The homepage lists a Homebrew install command, brew install cynative/tap/cynative. The repository also includes install.sh and install.ps1 scripts.
How do I create a custom agent?
Run cynative agents show with a built-in agent name to print its prompt, save a copy to ~/.cynative/agents under a new name, and edit the markdown file.
Does Cynative change resources in my cloud environment?
The homepage describes Cynative as read-only by construction, with every call gated and authorized before a credential is attached. It does not describe write actions.
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Listing maintained by Chris McClure and the WebIndexly editors · Updated Oct 12, 2026 · How we rank