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Arcjet · Concept

Next.js

Arcjet protects Next.js requests with configurable security rules. Create one SDK instance, call protect in a route, and allow or deny the request from the returned decision.

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Syntax

const aj = arcjet({ key: process.env.ARCJET_KEY, rules: [rule] });
const decision = await aj.protect(req);

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Source: Arcjet Next.js SDK reference | Arcjet Docs. Checked 2026-11-03.