This product was not featured by Product Hunt yet. It will not be visible on their landing page and won't be ranked (cannot win product of the day regardless of upvotes).
Your customers point Claude Code, Cursor and Codex at your docs, and those agents fail silently. We send 6 in, film every failure, and hand you the prompt that fixes it. $7 per Gauntlet run.
404-not-found is both a product and an experiment.
The product: give us your website or docs, and we send a squad of deliberately disposable AI agents through them to see whether agents can actually understand your product, navigate your documentation, use your API, and complete useful tasks.
When they fail, we show you where they died, why they died, and generate the fixes, documentation, and coding-agent prompt needed to make your product more agent-ready.
The experiment: **404-not-found was built as part of Release Before Ready — https://www.releasebeforeready.com/ — with one stupidly simple challenge: use NanoCorp to go from 0 to real revenue in 10 hours.**
NanoCorp is an autonomous company-building platform: give its AI CEO a mission, and let the agents figure out how to build and operate the business.
For this challenge, NanoCorp had to help find the idea, shape the product, build it, package it, launch it, distribute it, and get it in front of paying customers — all inside a single working day.
You can check out NanoCorp itself on Product Hunt: **producthunt.com/products/nanocorp**
No weeks of polishing. No hiding behind a waitlist. Ship the thing, put a price on it, and see if anyone cares.
So 404-not-found is testing two things at once:
🤖 Can AI agents actually use your product?
🏭 Can AI agents help build and launch something people will pay for in 10 hours?
That’s the challenge.
Now we find out.
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About 404-not-found on Product Hunt
“make your business ready for AI agents”
404-not-found was submitted on Product Hunt and earned 3 upvotes and 1 comments, placing #31 on the daily leaderboard. Your customers point Claude Code, Cursor and Codex at your docs, and those agents fail silently. We send 6 in, film every failure, and hand you the prompt that fixes it. $7 per Gauntlet run.
404-not-found was featured in Developer Tools (520.4k followers) and Maker Tools (2.9k followers) on Product Hunt. Together, these topics include over 88.4k products, making this a competitive space to launch in.
Who hunted 404-not-found?
404-not-found was hunted by Antoine. 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.
Want to see how 404-not-found stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Antoine