systemprompt.ioSystemPrompt
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Related Products
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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.
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About
SystemPrompt is a self-hostable AI governance and runtime platform for organizations connecting AI clients, model providers, and tools. It provides a shared gateway and control plane for managing user and agent access, model routing, tool permissions, credentials, and policy checks. Requests and tool actions can be recorded in the organization's environment for audit and usage review. The platform supports connections to Anthropic, OpenAI, Google Gemini, and Groq, and uses the Model Context Protocol (MCP) to expose authorized tools to compatible clients. Teams can extend the runtime with agents, workflows, skills, and business-specific services, and deploy it through a binary, containers, or managed cloud tenants. SystemPrompt is intended for technical and security teams governing AI workloads. Local evaluation is free; production use and cloud hosting require commercial terms.
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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
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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
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Audience
AI engineering and security teams that need to enforce authorization policies and audit every action performed by AI systems before execution
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Audience
Technical, security, and platform teams at enterprises building, deploying, or governing AI agents and model-powered applications.
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Not Supported
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API
Offers API
Supported
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API
Offers API
Supported
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Screenshots and Videos |
Screenshots and Videos |
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Pricing
$19.99 per month
Free Version
Supported
Free Trial
Not Supported
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PricingLocal evaluation is free. Production use requires an individually negotiated commercial license; cloud hosting requires a paid subscription.
Free Version
Supported
Free Trial
Not Supported
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Reviews/
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Reviews/
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Supported
In Person
Not Supported
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company InformationKastra
Founded: 2026
United States
kastra.ai/
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Company InformationSystemPrompt
Spain
systemprompt.io
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Alternatives |
Alternatives |
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Categories |
Categories |
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Integrations
Claude Code
Supported
OpenAI
Supported
Anthropic
Not Supported
ChatGPT
Not Supported
Claude Desktop
Not Supported
Codex CLI
Supported
Cursor
Supported
Gemini
Not Supported
Go
Supported
Google Sheets
Supported
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Integrations
Claude Code
Supported
OpenAI
Supported
Anthropic
Supported
ChatGPT
Supported
Claude Desktop
Supported
Codex CLI
Not Supported
Cursor
Not Supported
Gemini
Supported
Go
Not Supported
Google Sheets
Not Supported
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