Laying out the streets…STEP 1 OF 3

404-not-found · House #23,793

make your business ready for AI agents

In the Scoring business readiness neighborhood (Work and office). In town since 27 Sept 2026.

Nobody has claimed this house yet. Tablif records every new product and gives it a house; when its owner claims it, the lights go on.

Is this yours? Claim it

What Tablif read on 404-not-found's site

404-not-found describes itself as: “404-not-found — Your docs are killing AI agents. We show you where.”

What it is

Calls itself “agent-readiness checkers”.

  • Calls itself: agent-readiness checkers
“Free agent-readiness checkers report whether files like llms.txt exist.”

Where it puts itself

Rules out “subscription”.

  • Says it will not: subscription
“Free agent-readiness checkers report whether files like llms.txt exist. That is not the same question.”
“No subscription, no trial, no account.”

What it costs

One-time purchase. No free plan. No monthly or yearly plan. Prices quoted: $7.

  • One-time: yes
  • Monthly: no
  • Yearly: no
  • Free plan: no
  • Price: $7
“$7 per Gauntlet run.”
“No subscription, no trial, no account.”

Who it sells to

Sells to developers. Made for developer.

  • Sells to: developers
  • Made for: developer
“A developer cannot see whether Claude Code, Cursor or Codex can actually use their API docs.”

How it runs

A web app. Hosted in the cloud. No API. AI is the core of the product.

  • Kind: web
  • Runs where: cloud / hosted
  • API: no
  • AI role: core to the product
“Hosted Stripe checkout, NanoCorp as merchant of record.”
“No dashboard to configure. No score to interpret. You pay, the agents run, you watch.”

What it works with

Integrates with Stripe. Names Claude Code, Codex and 4 more on its pages.

  • Integrates with: Stripe
  • Names: Claude Code · Codex · Cursor · +3
“Your customers point Claude Code, Cursor and Codex at your docs, and those agents fail silently.”
“- [fastapi.tiangolo.com](https://404-not-found.nanocorp.app/run/fxvjevvexggb): 3 of 6 survived.”

What it offers as proof

Live, no waitlist. Shows customer logos. Claims “6”. Publishes a case study. Instant signup.

  • Customer logos: yes
  • Number claimed: 6
  • Case study: yes
  • Instant signup: yes
“Run the Gauntlet”
“…vercel.com SQUAD SPLIT 3 of 6 survived 26 Sept 2026”

Sources

Tablif read these pages, last on 10 Oct 2026. Everything above is what the product says about itself; Tablif does not verify every claim.

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