Arcjet
Arcjet is a runtime security platform designed specifically for AI agents, providing real-time enforcement of security policies at the point of action.
Our verdict
Who it's for
Real-time AI agent security and policy enforcement
Who should look elsewhere
Pricing can be complex with separate usage fees for web and agent requests
Pros
- +Enforces security at the action boundary, catching issues that other controls miss
- +Supports a wide range of AI agent frameworks and web frameworks
- +Provides detailed audit trails for compliance and debugging
Cons
- −Pricing can be complex with separate usage fees for web and agent requests
- −Requires integration and setup, which may be a barrier for non-technical users
Key features
- ✓Prompt injection detection on user input, API responses, and tool output
- ✓Sensitive data loss prevention (DLP) to stop PII leaks in inputs and outputs
- ✓Bot protection and Shield WAF for web applications
- ✓Agent tool controls that enforce policies by identity, role, route, and typed input
- ✓Real-time decision-making with allow, block, redact, or hold for review actions
- ✓Audit trail with decisions, policy versions, and run history
- ✓Integration with AI agent frameworks (LangChain, CrewAI, etc.) and web frameworks (Next.js, FastAPI, etc.)
- ✓Usage-based pricing with per-request fees for web and agent requests
Pricing
| Plan | Price | Billing | Notes |
|---|---|---|---|
| Individual | $25 | month | 1 team member; 1 hour log retention; Email support |
| Startup | $299 | month | 2 team members; 24 hour log retention; Email + Slack support |
| Enterprise | — | month | Unlimited team members; SIEM export; Priority support |