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About

Kastra is the authorization layer for AI systems, deciding what agents, models, and AI tools are allowed to do before they do it. It sits in the execution path of every prompt, tool call, shell command, database operation, and API request, evaluates each action against deterministic, attribute-based policy, and returns an allow, deny, redact, or escalate decision in under a millisecond. Unlike monitoring products that observe AI after it acts, Kastra blocks unauthorized behavior before it reaches a tool, API, database, or production system. Its unified control plane combines a policy engine, edge decision points, integrations, and a tamper-evident evidence vault that signs every decision for audit and replay. Kastra Edge brings local enforcement to developer machines, protecting Claude Code, Cursor, Codex CLI, and other coding agents from destructive commands, secret exfiltration, unsafe file writes, and unauthorized tool use.

About

StackRails is a software architecture and AI coding governance platform for engineering organizations. It builds a live knowledge graph of repositories, services, APIs, events, and cloud infrastructure, then provides coding agents with architecture and policy context through the Model Context Protocol (MCP). It supports Claude Code, GitHub Copilot, Cursor, and OpenAI Codex, and checks generated code against organization-defined rules on developers’ machines and in pull-request workflows. Teams can use it to map cross-repository dependencies, assess change impact, maintain architecture documentation, manage engineering policies, and run AI-assisted architectural reviews. StackRails is available as a hosted EU service, in customer-managed cloud environments on AWS, Microsoft Azure, or Google Cloud, and as an on-premises deployment.

Platforms Supported

Windows Not Supported
Mac Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

AI engineering and security teams that need to enforce authorization policies and audit every action performed by AI systems before execution

Audience

Enterprise engineering leaders, software architects, platform engineering teams and security teams.

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$19.99 per month
Free Version Supported
Free Trial Not Supported

Pricing

$15,000/year
The annual minimum contract is $15,000. Pricing scales with team size, with no usage meter or overage charges. A free 14-day Architectural Risk Assessment is available; it is an assessment, not a free software version or product trial. Premium support and self-hosting are optional.
Free Version Not Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Training

Documentation Not Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Kastra
Founded: 2026
United States
kastra.ai/

Company Information

StackRails
Founded: 2026
Ireland
stackrails.ai

Alternatives

Alternatives

Norma

Norma

Quality Clouds
Zof

Zof

Zof AI, Inc.

Categories

AI Governance Supported

Categories

AI Governance Supported

Integrations

Claude Code Supported
Cursor Supported
Azure DevOps Not Supported
Bitbucket Not Supported
Codex CLI Supported
GitHub Not Supported
GitHub Copilot Not Supported
GitLab Not Supported
Go Supported
JSON Supported
Java Supported
Microsoft Excel Supported
Model Context Protocol (MCP) Not Supported
OpenAI Supported
OpenAI Codex Not Supported
Python Supported
Rust Supported
Slack Supported
Swift Supported
TypeScript Supported

Integrations

Claude Code Supported
Cursor Supported
Azure DevOps Supported
Bitbucket Supported
Codex CLI Not Supported
GitHub Supported
GitHub Copilot Supported
GitLab Supported
Go Not Supported
JSON Not Supported
Java Not Supported
Microsoft Excel Not Supported
Model Context Protocol (MCP) Supported
OpenAI Not Supported
OpenAI Codex Supported
Python Not Supported
Rust Not Supported
Slack Not Supported
Swift Not Supported
TypeScript Not Supported
Claim Kastra and update features and information
Claim Kastra and update features and information
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Claim StackRails and update features and information