Arcjet
Updated
About Arcjet
Arcjet is a security platform that monitors and controls AI agent actions at runtime.
Developers and teams building AI agents use Arcjet to enforce security policies across every action their agents take. It's built for anyone deploying AI agents in production who needs to prevent unauthorized tool calls, data leaks, and cost overruns.
- Block prompt injection attacks
- Authorize and control tool calls
- Detect and redact PII in prompts and outputs
- Enforce budget and rate limits
- Track every action for audit trails
Good to know: Integrates with Claude, LangChain, LangGraph, OpenAI Agents, and other AI frameworks via SDKs.
Key features
- Tool call authorization: Approve or block specific tool calls based on policy, preventing unauthorized actions like refunds or API access.
- Data loss prevention: Scan inputs to stop PII leaking into the LLM, and outputs before sensitive data is sent out.
- Budget enforcement: Hold token quota limits in the execution loop to stop runaway costs before they happen.
At a glance
- Category: AI Coding
- Type: Security & compliance
- Jobs: Build Sites & Apps
- Evidence: New launch on Product Hunt (a few reviews)
- AIME Score: 60 of 100
- Launched: Sep 21, 2026 on Product Hunt · 100+ upvotes
- Website: arcjet.com
Alternatives to Arcjet
- Thoropass (AIME Score 70)
- Whistlelink (AIME Score 63)
- OneTrust Privacy Automation (AIME Score 63)
- Evren (AIME Score 58)
- VibeDefend by CybeDefend (AIME Score 58)
Sources: Found on Product Hunt (launched Sep 2026) · Details checked on the tool’s own website · Researched by AI Made Easy
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