Rampart

Rampart is an open-source AI agent firewall that enforces YAML policies to block dangerous commands, file reads, and network calls before they run. It operates locally with no cloud dependency, ensuring agent security.

Claim this tool

2Views

At a glance

Pricing

Open Source · Free

Free tier

Yes

API

Skill level

Technical

About

What is Rampart?

Rampart is an open-source AI agent firewall designed to enhance the security of AI coding agents like Claude Code, Codex, Cline, OpenClaw, and MCP. It operates by sitting between the agent and the system, evaluating commands, file access, and network requests against a user-defined YAML policy before execution. This local-first approach ensures no cloud dependency and provides real-time protection against credential reads, data exfiltration patterns, and destructive commands. Rampart allows normal development actions to proceed quickly while blocking or requiring approval for risky operations, providing a crucial "seatbelt, not a cage" for AI agent workflows. It also maintains a hash-chained local audit log for tamper-evident record-keeping.

Best used for

Ideal for developers who need to secure their AI coding agents against malicious or accidental actions, enforce specific operational policies, and maintain an auditable record of agent activities. Especially valuable for preventing credential leaks, blocking destructive commands, and ensuring human oversight for critical operations without hindering safe development workflows.

Common actions

secure AI agents

enforce AI policies

monitor agent actions

prevent data exfiltration

Capabilities

Key features

YAML policy enforcement
Local-first operation
Block dangerous commands
Prevent credential reads
Detect exfiltration patterns
Hash-chained audit logs
Native agent integrations

Target Audience

developer

Integrations

claude-codecodexclineopenclawmcp

Pricing & Plans

Open Source · Free

Open Source

FAQs

How does Rampart ensure local-first operation and no cloud dependency?

Rampart is designed to run entirely on your local machine. It evaluates all commands, file access, and network requests against your YAML policy directly on your system, ensuring that no data or decisions are sent to or rely on external cloud services. This provides maximum privacy and control.

What types of dangerous actions can Rampart prevent?

Rampart can block a range of dangerous actions, including reading sensitive files like SSH keys or .env files, detecting and stopping data exfiltration attempts to external URLs, and preventing destructive commands such as `rm -rf /`. It also allows for 'ask' policies, requiring human approval for critical operations.

How does Rampart integrate with existing AI coding agents?

Rampart offers native integrations for agents like Claude Code, Codex CLI, Cline, and OpenClaw through hooks, wrappers, or plugins. For other agents, it provides universal wrapping or MCP proxy options, allowing it to sit in the execution path and evaluate actions before they run, regardless of the agent.

Trending

Subcategories trending in Coding & Development

Open Source & Models Code Assistants DevOps & Infrastructure No-Code / Low-Code Testing & QA Backend & APIs

Trending

Explore

Browse AI tools by category

Content & Design Productivity & Business Coding & Development AI Agents & Automation Research & Education Wellness & Lifestyle Career Development Marketing & Growth Data & Analytics Customer Support & CX Finance E-commerce