Arcjet is the runtime security platform that ships in your AI code. Detect prompt injection, authorize agent tool calls, redact sensitive data, and block bots and abuse. Real-time security building blocks you call inside your app, before an action happens.
How much latency is introduced by these checks on the request path, particularly for the agent flows which require multiple checks? Btw, Congratulations @davidmytton@cassie_arcjet & Team. 🎊✌️
This is an amazing product, and we are extremely happy customers at @Creem !
Congrats on the launch guys, any plans to also expand the product towards image and video output moderation?
Congrats on the launch to the Arcjet team! Can teams use custom security policies or call an external decision service at a specific authorization step?
Big fan of anything that @davidmytton builds. So naturally, Arcjet is absolutely amazing. Huge congrats to the team. 🔥
Congrats on your PH launch! I personally faced some security issues, and this seems to be a perfect solution. Thanks!
any volume increase in security breach attempts you've seen recently and how are you solving them? how do you see runtime security platforms keeping pace?
congrats on the launch! been following you guys for a while love what you're doing
I am curious how much more secure this actually makes an AI agent in practice
I was so psyched when Flo told me Arcjet was launching (total fan of all the work David does for console). Admittedly, their biggest fan and forwarding to all my dev friends. Very very cool product team!!
This looks really interesting! Congrats on the launch. I'm excited to try this out and see how it works.
very interesting idea, a must have for the code agents generated. All the best with the launch.
So happy to see this go live, and delighted to be part of the launch. The team have put in a serious body of work over the last few months to get here.
Governing agents at the code level is something most companies still aren't doing, and it's exactly where the real risk sits.
As David put it: "The code is where the context is, so you can make security decisions at machine speed."
Let's go!
Is that focused on end users abusing the agent or on agents themselves getting tricked into abusive loops?
Does it add much latency when you check for prompt injection before every action?
About Arcjet on Product Hunt
“Secure the AI agents you're building at runtime”
Arcjet launched on Product Hunt on September 21st, 2026 and earned 331 upvotes and 66 comments, earning #3 Product of the Day. Arcjet is the runtime security platform that ships in your AI code. Detect prompt injection, authorize agent tool calls, redact sensitive data, and block bots and abuse. Real-time security building blocks you call inside your app, before an action happens.
Arcjet was featured in Developer Tools (519.8k followers), SDK (850 followers) and Security (2.9k followers) on Product Hunt. Together, these topics include over 91.1k products, making this a competitive space to launch in.
Who hunted Arcjet?
Arcjet was hunted by fmerian. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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fmerian
@davidmytton & team, congrats on the launch. Lovely product, would def love to see how it grows with time. Best wishes 🫡