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Arcjet is a runtime security platform for AI agents, web applications, APIs, and automated workflows. It helps developers enforce security policies at the point where actions occur, protecting applications from prompt injection, unauthorized tool calls, sensitive data exposure, excessive usage, and other forms of abuse.
Arcjet provides controls for AI agent security, including prompt injection detection, agent tool authorization, sensitive information and data loss prevention, token and spend budgets, content moderation, and action-level policy enforcement. It can return decisions such as allow, block, redact, or hold for review, while recording policy context, inputs, actors, and run history for auditing.
The platform also includes web application security features such as a WAF, bot protection, rate limiting, signup form protection, and email validation. Arcjet integrates with JavaScript, Python, Go, and popular frameworks and AI agent platforms through native SDKs and framework integrations. Policies can be defined in code for version control and testing or managed remotely through the Arcjet Console for real-time security updates.
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