Arcjet Js
Runtime security for AI apps and agents: prompt injection detection, tool-call authorization, sensitive-data redaction, bot protection, and rate limiting. Drop it into your JS/TS code
Updated
✨ Try AgentScout's free AI image generator →Good for: writing code, automating workflows, agent security and safety
Use cases
Boost Arcjet Js with our $29 Fast-Track + 7-Day Launch Boost, pin it to the top of security & governance for 30 days + permanent /best/ & /compare/ placement + dual X spotlight (@clampdown19 & @AgentScoutHQ) for $49, or book the exclusive $99/wk sitewide & newsletter slot.
About Arcjet Js
Arcjet Js is listed in our security & governance category and is aimed at builders. Runtime security for AI apps and agents: prompt injection detection, tool-call authorization, sensitive-data redaction, bot protection, and rate limiting. Drop it into your JS/TS code Pricing, as the maker states it: Open source + cloud. Maturity: Active. We last checked the official link on 2026-10-28.
Arcjet Js at a glance
- Category: Security & governance
- Built for: Developers and teams building with AI agents
- Pricing: Open source + cloud (as the maker states it)
- GitHub: arcjet/arcjet-js · 696 stars (as of Oct 28, 2026)
- Official site: arcjet.com
- Listed on AgentScout: Oct 28, 2026
Arcjet Js FAQ
What is Arcjet Js?
Runtime security for AI apps and agents: prompt injection detection, tool-call authorization, sensitive-data redaction, bot protection, and rate limiting. Drop it into your JS/TS code
How much does Arcjet Js cost?
Arcjet Js's pricing, as the maker states it: Open source + cloud. Open-source tools are free to use, though you may still pay for model API usage or a hosted plan. Check the official site for current plans.
Where can I find Arcjet Js's source code?
On GitHub at arcjet/arcjet-js, which had 696 stars as of Oct 28, 2026.
What are alternatives to Arcjet Js?
Similar tools include Superagent, Pentest AI Agents, Pipelock, ADR, Eleven and Marrow AI.
Facts from our link-checked listing, the GitHub repository and the official site. See something wrong? Suggest an edit.
Arcjet Js ratings and reviews
Be the first to rate Arcjet Js: tap 1 to 5 stars below. A written review is optional.
Arcjet Js alternatives
Other security & governance tools in our directory. See all security & governance tools →
Superagent
SDK for AI agent safety that blocks prompt injections and unsafe tool calls, redacts PII and secrets, and runs red-team scenarios.
Pentest AI Agents
Turn Claude Code into your offensive security research assistant. Specialized AI subagents for authorized penetration testing plan engagements, analyze recon, research exploits, build detections.
Pipelock
Open-source AI agent firewall for MCP security and agent egress. Scans mediated HTTP, MCP, A2A, and WebSocket traffic for exfiltration, SSRF, and prompt injection, and emits mediator-signed action.
ADR
Uber's Agentic AI Detection and Response system that secures employee and customer-facing AI agents with observability and threat detection.
Eleven
An agent-first reverse-engineering app for macOS, Windows and Linux: load any app or binary and ask your AI agent what it does while it disassembles and analyzes the code for you.
Marrow AI
Control layer for AI agents that checks policy, risk and prior outcomes before an agent acts, can require a named human yes, and keeps proof and outcome history; works with Claude Code, Codex, Cursor and MCP.
Related lists
🏆 See also: Strix alternatives · All best-of lists
Badge for makers
Built Arcjet Js? Add this badge to your README or site. It links back to this page. About badges