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About

Preloop is the open source AI agent control plane for agents that take real actions. It combines an MCP firewall for tool access, an AI model gateway for cost, safety, and attribution, policy-as-code with human approvals, runtime session observability, and audit trails in a single self-hostable platform. AI agents can deploy code, change infrastructure, move money, touch production data, and burn model spend in seconds, so Preloop helps teams control what agents can do, how much they spend, and which actions require human approval. It works with OpenClaw, Hermes, Claude Code, Codex CLI, Cursor, Gemini CLI, Windsurf, Cline, OpenCode, and any MCP-compatible agent or managed runtime. Access rules can inspect arguments and context, not just tool names, with CEL expressions for fine-grained conditions. Teams can start with observability, then layer in approvals and deny rules without SDKs or invasive app changes.

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 Not Supported
Linux Not Supported
Cloud Supported
On-Premises 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

Platform, DevEx, security, and operations teams that need to govern production AI agents, control tool access, approve risky actions, and maintain audit-ready visibility

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

$290 per month
Free Version Supported
Free Trial 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

Preloop
United States
preloop.ai/

Company Information

StackRails
Founded: 2026
Ireland
stackrails.ai

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Categories

Agentic AI Supported
AI Control Planes Supported
AI Governance Supported

Categories

AI Governance Supported

Integrations

Claude Code Supported
Cursor Supported
Model Context Protocol (MCP) Supported
Amazon Bedrock Supported
Azure DevOps Not Supported
Bitbucket Not Supported
Cline Supported
Codex CLI Supported
Gemini CLI Supported
GitHub Not Supported
GitHub Copilot Not Supported
GitLab Not Supported
Hermes Supported
Mattermost Supported
OpenAI Codex Not Supported
OpenClaw Supported
OpenCode Supported
Slack Supported
Windsurf Browser Supported
YAML Supported

Integrations

Claude Code Supported
Cursor Supported
Model Context Protocol (MCP) Supported
Amazon Bedrock Not Supported
Azure DevOps Supported
Bitbucket Supported
Cline Not Supported
Codex CLI Not Supported
Gemini CLI Not Supported
GitHub Supported
GitHub Copilot Supported
GitLab Supported
Hermes Not Supported
Mattermost Not Supported
OpenAI Codex Supported
OpenClaw Not Supported
OpenCode Not Supported
Slack Not Supported
Windsurf Browser Not Supported
YAML Not Supported
Claim Preloop and update features and information
Claim Preloop and update features and information
Claim StackRails and update features and information
Claim StackRails and update features and information