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What is Kastra?

Kastra acts as a vital authorization framework for AI systems, establishing the permissions of agents, models, and tools before they are executed. Situated along the execution path of numerous interactions, including prompts, tool calls, shell commands, database transactions, and API requests, it assesses each action through deterministic, attribute-based policies, making decisions to allow, deny, redact, or escalate in less than a millisecond. Unlike monitoring solutions that merely observe AI activities after they occur, Kastra takes a preemptive stance, blocking unauthorized actions before they can affect any tools, APIs, databases, or production systems. Its extensive control plane encompasses a policy engine, edge decision-making features, multiple integrations, and a tamper-proof evidence vault that securely records each decision for future auditing and replay. Additionally, with the introduction of Kastra Edge, local enforcement capabilities are broadened to developer environments, protecting coding agents like Claude Code, Cursor, and Codex CLI from malicious commands, unauthorized data access, unsafe file changes, and incorrect tool usage. This forward-thinking approach to authorization not only bolsters security but also guarantees compliance and accountability in AI-driven operations, fostering a more trustworthy environment for users. By ensuring that all actions are rigorously vetted, Kastra significantly mitigates potential risks associated with AI technologies.

What is HOL Guard?

HOL Guard serves as a protective layer for AI agents, functioning primarily on a local basis to oversee the behavior of AI assistants and proactively avert potentially dangerous actions. Acting as a buffer between the AI agent and the computer, it evaluates tool usage and access to local resources, looking out for threats such as the leakage of secrets and credentials, harmful commands, actions influenced by prompt injections, and the utilization of tampered or suspicious packages, as well as unsafe configurations and unvalidated plugins, skills, hooks, and settings. Identified threats can be swiftly blocked, while uncertain activities are paused to obtain user approval, thus ensuring that users retain control over the process. The entire operation is confined to the developer's local environment, negating the need for an internet connection and ensuring that no files, prompts, or sensitive data are uploaded to external servers. Typically, local assessments are completed in under 50 milliseconds, and implementing Guard does not require any alterations to existing code or workflows. It is versatile and works seamlessly with several coding agents, including Claude Code, Cursor, Codex, Gemini CLI, OpenCode, Hermes, and OpenClaw, offering tailored integrations that scrutinize actions before they are carried out. Furthermore, this bolsters the overall safety and dependability of AI interactions, leading to enhanced confidence in automated systems. Overall, HOL Guard significantly contributes to a secure operational environment for AI assistants, making it an essential tool for developers focused on safeguarding their work.

Media

Media

Integrations Supported

Claude Code
Cursor
OpenClaw
Slack
Codex CLI
Go
JSON
Microsoft Excel
OpenAI
TypeScript
YAML

Integrations Supported

Claude Code
Cursor
OpenClaw
Slack
Antigravity CLI
Gemini CLI
GitHub
GitHub Copilot CLI
Model Context Protocol (MCP)
OpenAI Codex
OpenCode
Pi Agent
ZCode

API Availability

Has API

API Availability

Pricing Information

$19.99 per month
Free Version

Pricing Information

$4.99 per month
Free Version

Supported Platforms

SaaS
Mac

Supported Platforms

Windows
Mac
Linux

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub
Online Training

Training Options

Documentation Hub

Company Facts

Organization Name

Kastra

Date Founded

2026

Company Location

United States

Company Website

kastra.ai/

Company Facts

Organization Name

HOL

Date Founded

2024

Company Location

United States

Company Website

hol.org/guard

Categories and Features

AI Governance

Not specified

Categories and Features

AI Security

Not specified

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