by arcjet · MCP Server · ★ 678
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Arcjet - JS SDK [Arcjet][arcjet] is the runtime security platform that ships in your AI code. Detect prompt injection, authorize agent tool calls, redact sensitive data, and block bots and abuse. Real-time security building blocks you call inside your app, before an action happens. This is the monorepo containing various [Arcjet][arcjet] open source packages for JS. Why Arcjet? Your app's AI features and agents take real actions, calling tools, reading data, hitting APIs. Arcjet runs inside that code and lets you enforce security on each action in real time, then audit what happened Which package do I need? Arcjet protects two types of entry points. Pick the right path for your use case: When to use
| Stars | 678 |
| Forks | 30 |
| Language | TypeScript |
| Category | MCP Server |
| License | Apache-2.0 |
| Quality Score | 74.2823530987467/100 |
| Open Issues | 8 |
| Last Updated | 2026-08-07 |
| Created | 2023-11-30 |
| Platforms | mcp, node |
| Est. Tokens | ~23k |
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arcjet-js is Runtime security for AI apps and agents: prompt injection detection, tool-call authorization, sensitive-data redaction, bot protection, and rate limiting. Drop it into your JS/TS code.. It is categorized as a MCP Server with 678 GitHub stars.
arcjet-js is primarily written in TypeScript. It covers topics such as agent-security, ai-agents, ai-security.
You can find installation instructions and usage details in the arcjet-js GitHub repository at github.com/arcjet/arcjet-js. The project has 678 stars and 30 forks, indicating an active community.
arcjet-js is released under the Apache-2.0 license, making it free to use and modify according to the license terms.
The top alternatives to arcjet-js on Agent Skills Hub include nono, Adrian, hol-guard. Each offers a different approach to the same problem space — compare them side-by-side by stars, quality score, and community activity.