← Resources

Before you build it, know if anyone searches for it.
With evidence, for a few cents.

A market research with public sources: how people type the problem, what they say in forums, who already sells it and at what price. Every number with its source, every cent logged, and at the end a verdict with the first test to run.

Get the free guideTwo ways ↓
Out of pocket$0.026 in a real caseSourcespublic, citedForClaude or ChatGPT

What it costs to know if a market exists.

Public cost ranges of market research, and the out-of-pocket spend of one of our real researches.

Range source: preuve.ai, 7 Oct 2026. Bars not to scale: the difference is six orders of magnitude.

Five steps. A verdict at the end.

The question
What you would sell, to whom, where, at what price. Research without an exact question only produces tables.
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The searches
Google and YouTube autocomplete: how people really type the problem, free.
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The words
Forums and Reddit: repeated complaints, what they tried, real phrases with links.
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The supply
Who is already on YouTube, who advertises, at what price competitors sell.
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The verdict
Go, adjust or stop, with confidence and the first test with its stop rule written before.

Two ways.

Run it with your AI agent, or I do it on your idea.

The kit

Do it yourself

$19

→The ready folder: open it with your agent (Claude or ChatGPT), write "research this market: ..." and it does the rest.
→The free tools: autocomplete, YouTube, competing channels, Reddit, name availability.
→The rules: source and label for every claim, every cent logged.
→The report template with verdict, confidence and first test.
→15-page full guide, in English and Italian.
Get the kit

The service

I do it for you

€290 €490

→Searches, buyers' words, competitors with prices, active advertisers.
→Google volumes on the deciding keywords, spend included.
→Report with verdict, confidence and first test with its stop rule.
→The raw data, to redo it yourself. If you have the kit, its $19 comes off.
Tell me the idea

Launch price.

Before buying, read the free guide.

9 pages: the problem, what it costs, the five-step method, four free sources, a case with the receipt, the verdict, the limits. Enough for a first research on your own.

Get the free guide

What you are probably thinking.

"Is free data enough?"

To decide whether a first test is worth it, almost always: how people search, what they say and who already sells are public. Google volumes cost fractions of a cent and matter only on the deciding words.

"Will it tell me the product will sell?"

No, and no research does. It says whether there is demand, who is already there and at what price, and which first test to run. Only payments or pre-orders show buying.

"How long does it take?"

A few hours of your AI agent. In the real case of 6 October the complete research on a YouTube channel took one session, $0.026 out of pocket.

"Do I need to code?"

No. Your AI agent, Claude or ChatGPT, uses the kit: it installs what is needed, runs the tools and writes the report in your language.

"What about Reddit?"

Reddit often refuses anonymous requests from scripts today. The kit uses a free Reddit app if you have one, otherwise your agent reads threads via web search and quotes phrases with their links.

Where it comes from.

It is the method I use to choose what to build. I used it to pick the niche of my first digital product and for a YouTube channel about money: $0.026 out of pocket for 1,079 posts, 15 volumes, 21 competitors. The day after, 55 niches compared for $0.034.

Read more: market research for startups, for a few cents.