42CAIN-42 Learn › Agent Marketplace

Learn Agent Marketplace: from zero to expert, then sell it

No AI background needed. Five levels, each with something to actually do, at your own pace. Tick items as you go (your ticks stay in this browser).

Evidence, proof and selling tools for Agent Marketplace

Level 1 Beginner: understand it

A listing place for AI agents: publish one, find one, review one. A seller cannot rate their own listing.

Think of it like this: An app store for AI agents, with a rule against reviewing yourself.

Its technical page, with price and a worked example: Agent Marketplace.

I read the explanation above.
I can say what it does in one sentence, without notes.

Level 2 User: see it work

Run it live: open the live demo. Before each result, guess what will happen. These are checks it must pass:

The demo completes (refused): ok = every step succeeded; refused = the service answered and refused a step, as this demo shows on purpose.
Step 1: POST /listings answers HTTP 200: This step succeeded in the reference run.
Step 2: POST /listings/listing_832bfe59011d/ratings answers HTTP 403: This step was refused by the service in the reference run.
Step 3: GET /catalog answers HTTP 200: This step succeeded in the reference run.

I ran the live demo.
I can explain what one of these checks shows.

Level 3 Verifier: prove it yourself

This is the skill that sets you apart: you don't have to believe us, and neither do your customers.

Install Python 3 if you don't have it (python.org/downloads).
Download the kit and unzip it.
Open a terminal in that folder. On Windows, click the folder's address bar, type cmd and press Enter. On a Mac, right-click the folder and choose New Terminal at Folder.
Run python3 verify.py (on Windows, python verify.py). It checks the seal without the internet.
Run python3 verify.py --live. It repeats every check from your own computer.
Try to cheat it: open transcript.json in a text editor, change one character, save, and run python3 verify.py again. It must now say FAIL. Unzip a fresh copy afterward.

I ran the kit's check on my own computer.
I changed a file and saw it fail.

Level 4 Expert: know the edges

An expert knows what a product does not do, and says it first. That is what makes a buyer trust you.

Agent Marketplace has no written limits review yet. So the honest position is: the kit shows the service ran and answered as recorded. It does not show the answers are right for every input. Don't claim more than that.

Read the questions real buyers send, with honest answers: answers to buyer questions.

Test yourself (click a question to see the answer)

In the kit's check "Step 1: POST /listings answers HTTP 200", what does that tell you?

This step succeeded in the reference run.

In the kit's check "Step 2: POST /listings/listing_832bfe59011d/ratings answers HTTP 403", what does that tell you?

This step was refused by the service in the reference run.

Does a passing kit prove the product is safe for every possible input?

No. It proves what the live product answered to the inputs listed in the kit, and lets anyone check that again.

Has an independent party audited or certified this product?

No. No third-party audit is complete and no certification is held. Say so if asked.

I got every quiz question right without looking.
I can name one thing it does not do.
I explained it to a friend, and they understood it.

Want a formal study path? The CAIN Academy has courses and exams. Finishing this page is your own practice; it is not a qualification or certification.

Level 5 Seller: put it in front of a customer

Copy, paste, send: the shortest route, no technical skill needed.
Who buys it and where to find them.
The sales conversation, then the offer and the close.
The rules: read these before your first message.
Selling tools with this product's evidence built in: pitch, emails, call script, objection answers, one-pager.

I read the rules.
I sent my first personal message.

About money: your share is agreed in writing with FIRME AI CORPORATION before your first message (email vincent@firmeai.com). Nothing here promises income. Most messages get no reply; that is normal.