Arcjet MCP Server

Overview

The Arcjet MCP server bridges the gap between AI assistants and a comprehensive security platform, enabling agents to query real‑time protection data without exposing sensitive credentials. By exposing Arcjet’s team and site listings through the Model Context Protocol, developers can embed contextual security insights directly into conversational workflows. This eliminates the need for manual API integration and lets agents answer questions about bot detection rates, rate‑limit thresholds, or recent attack mitigations while maintaining a single source of truth.

What problem does it solve? Many AI assistants struggle to incorporate external security telemetry, often requiring custom connectors or repetitive code. Arcjet’s MCP server abstracts these details into a standardized protocol, allowing any MCP‑compatible client—such as Cursor or VS Code Copilot—to discover and invoke Arcjet tools with minimal configuration. Developers can now ask the assistant, “What sites are protected by team X?” or “Show me the current rate‑limit status for my application,” and receive up‑to‑date answers that reflect live security metrics.

Key capabilities include:

• Team and site enumeration – list all teams and associated sites, providing a high‑level view of the security landscape within an organization.
• Contextual tool access – expose Arcjet’s built‑in tools (bot detection, rate limiting, email validation) as first‑class operations that can be called directly from the assistant.
• Secure authentication – leverage a session cookie as an API key, ensuring that only authorized users can query sensitive data.
• Seamless integration – plug the server into popular development environments with a single JSON configuration, enabling instant tool discovery and invocation.

Real‑world scenarios range from automating security dashboards in a chat interface, to enabling developers to debug request flows during code reviews, to providing compliance auditors with instant access to protection metrics. By integrating Arcjet’s security context into AI workflows, teams gain faster insight, reduce the risk of misconfiguration, and maintain a consistent security posture across all touchpoints.

Unique advantages stem from its lightweight implementation and tight coupling with Arcjet’s existing UI. The server requires no additional API key infrastructure, as it reuses the authenticated session cookie from the Arcjet web app. This approach keeps security tight while simplifying onboarding, making it an ideal choice for developers who need instant, trustworthy security data within their conversational AI tools.