Arcjet MCP Server

Arcjet runtime security SDK — bot protection, rate limiting, prompt injection detection, PII blocking, and WAF for JavaScript and TypeScript apps

Local serverstdio

What is the Arcjet MCP Server?

Arcjet runtime security SDK — bot protection, rate limiting, prompt injection detection, PII blocking, and WAF for JavaScript and TypeScript apps

What it actually does

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Maintainer setup documentation.

How to install the Arcjet MCP Server

{
  "mcpServers": {
    "arcjet": {
      "command": "npx",
      "args": ["-y", "@arcjet/cli"],
      "env": {
        "ARCJET_KEY": "your-value"
      }
    }
  }
}

Add to claude_desktop_config.json, then restart Claude Desktop.

Configuration

VariableDescriptionRequired
ARCJET_KEYCredential the server authenticates with.Yes

Example prompts to try

  • “Use Arcjet to Installation.”

Frequently asked questions

Arcjet runtime security SDK — bot protection, rate limiting, prompt injection detection, PII blocking, and WAF for JavaScript and TypeScript apps Confirm the tools offered by your installed version in the connected client. Tool availability and permissions depend on the server and account configuration.