Gamma Tape x402 case study
Shipped, not theoretical

I turned one idea into a paid x402 endpoint. Here's the checklist that told me it was worth it.

Every AI coder will build whatever you ask it to. This is the same 8-question checklist I ran my own idea through before I built it — score yours in 10 minutes, then take the exact build-brief I used and ship it this weekend.

The build log

How the endpoint actually got shipped

Not a framework — the real sequence, dated, including the score that told me to keep going. (Specifics of the idea itself are mine to keep — the process isn't.)

I already had the hard part

An existing habit or workflow I already ran for myself meant the data pipeline wasn't the project — packaging one answer as a per-call response was.

Arguing myself out of it

Talked it through with my AI coder specifically to find the reason this was a bad idea. Couldn't kill it: the answer changes often enough that caching it wouldn't work, and the value is obvious per-call, not per-month.

Ran my own checklist

Same 8 questions on the free checklist. Scored high on existing asset, freshness, and machine-buyer fit — lowest on discovery, which became the actual work.

14 / 16 — go

Live endpoint, paid in USDC on Base

Manifest, payment boundary, and a rate-limited free preview — built from the same agent brief that's in the kit below.


Free · 10 minutes

Is your idea worth building?

The same 8-question checklist from Day 3 above. Answer honestly — the point is to trust the number over the enthusiasm.

Do you already have data or access you could gate, rather than building from scratch?
Is a single call worth something on its own, not just a subscription bundle?
Is the buyer an agent or script, not a human clicking checkout?
+ 5 more questions · scored 0–16 Take the full checklist →

If it scored 12+

Take the exact kit I used to ship

Not a generic guide — the manifest, payment config, and build-brief from a live x402 endpoint, cleaned up so your AI coder can run with it.

Free
Idea-Fit Checklist
$0
  • 10-minute scored worksheet
  • Plain go / maybe / no-go
  • Same 8 questions I ran mine through
Take the checklist
Tier 2
Complete Bundle
$99 founding
  • Everything in Tier 1
  • Directory & distribution order I actually used
  • The manual gotchas nobody documents
  • Submission-packet template
  • Private Bundle lounge

Your $49 always counts toward the $99 Bundle — upgrade later, never re-pay. Card or USDC on Base.

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