Know if your idea is worth building, before you build it.

Answer five questions. In about a minute you get a free score out of 100, your closest competitors and what could stop you. Then, if you want it, a full Founder Verdict with every figure tagged and linked to its source.

No sign-in to start. Quick Read free; Founder Verdict $30, refunded automatically if it fails. We never sell your idea.

What a Founder Verdict looks like

A sample for OpsLedger, a fictional idea. Tap through the chapters; every figure says where it came from.

OpsLedger · Founder Verdict · Illustrative sample

Promising, but prove demand first.

The catch: People agree stock goes missing, but almost nobody is shopping for a fix yet, so you could build something useful that no one buys.

How the score adds up: Demand 52 · Market 74 · Competition 58 · Model 66 · Risk 72 · Founder fit 70

Fictional idea; numbers are for illustration.

Open the full sample

Five chapters, one plain answer

Every section opens with what it means for you and one next step, then shows the evidence. Physical products get suppliers, landed cost and licences too.

01
Verdict
Your score, the bottom line, what the AI guessed, and how six parts add up.
02
Market
TAM, SAM and SOM with their sources, segments ranked by fit, trends and recent funding.
03
Demand
Real buyer quotes with links, proof of demand, search trends and a simulated buyer panel.
04
Competition
Competitors and how to beat them, the five forces, your moat and pricing position.
05
Plan
Business model, numbers check, first 100 customers, riskiest bet, interviews, risks, pivots and an action plan.

Built on evidence, and honest about it

questions to start, no sign-in: 5questions to start, no sign-in
research agents at most (9 for non-physical ideas): 10research agents at most (9 for non-physical ideas)
tags on every figure: from a source, calculated, assumption: 3tags on every figure: from a source, calculated, assumption

Sources go live as research runs. Each one is counted the first time a real run returns pages from it.

The research listShow all 73

Where the agents start. Paywalled sources are read through what's public about them; nothing here is claimed until a run reaches it.

Market research · 4

Grand View Research, not yet live
Mordor Intelligence, not yet live
Statista, not yet live
IBISWorld, not yet live

Public statistics · 3

World Bank Open Data, not yet live
OECD Data, not yet live
US Census Bureau, not yet live

Regulatory filings · 3

SEC EDGAR, not yet live
EUR-Lex, not yet live
Companies House, not yet live

Tech & business press · 4

TechCrunch, not yet live
CNBC, not yet live
Fortune, not yet live
The Information, not yet live

Regional press · 4

Economic Times, not yet live
EU-Startups, not yet live
Maddyness, not yet live
Nikkei Asia, not yet live

Press & funding wires · 3

PR Newswire, not yet live
Business Wire, not yet live
GlobeNewswire, not yet live

Community & social · 6

Reddit, not yet live
X, not yet live
YouTube, not yet live
Hacker News, not yet live
Quora, not yet live
Indie Hackers, not yet live

Professional & hiring · 3

LinkedIn, not yet live
Glassdoor, not yet live
Wellfound, not yet live

Funding databases · 4

Crunchbase, not yet live
PitchBook, not yet live
Tracxn, not yet live
Y Combinator, not yet live

Reviews & marketplaces · 13

G2, not yet live
Capterra, not yet live
Trustpilot, not yet live
Product Hunt, not yet live
App Store, not yet live
Google Play, not yet live
Amazon, not yet live
Etsy, not yet live
eBay, not yet live
Google Shopping, not yet live
Kickstarter, not yet live
Indiegogo, not yet live
Shopify App Store, not yet live

Developer & code · 3

GitHub, not yet live
dev.to, not yet live
Stack Overflow, not yet live

Search & trends · 3

Google Trends, not yet live
Similarweb, not yet live
Public pricing pages, not yet live

Suppliers & manufacturers · 7

1688, not yet live
Alibaba, not yet live
IndiaMART, not yet live
Thomasnet, not yet live
Made-in-China, not yet live
Global Sources, not yet live
Kompass, not yet live

Customs & trade data · 3

ImportYeti, not yet live
UN Comtrade, not yet live
Panjiva, not yet live

Patents & trademarks · 4

USPTO, not yet live
WIPO, not yet live
EUIPO, not yet live
Google Patents, not yet live

Licensing & regulators · 6

U.S. FDA, not yet live
U.S. CPSC, not yet live
FSSAI, not yet live
U.S. SBA, not yet live
GOV.UK, not yet live
Your Europe, not yet live

One price for the answer

No credits, no packs, no tiers. That's the whole list.

Quick Read

Free

No card, no sign-in

· A score out of 100 against the 70 go line
· One cited market figure and your two closest competitors
· The two or three things most likely to stop you

Start free

Founder Verdict

$30

One-time, per idea

· Five chapters researched on the live web
· Every figure tagged and linked to its source
· Refine and re-run any section free; save as HTML or PDF
· Refunded automatically if it fails to finish

Start with a Quick Read

Watch

$9/month

Optional, after a Founder Verdict

· The research runs again every month
· A dated new version with the score change
· An email when competitors, funding or demand move
· Cancel any time, in one click

Watch · $9/month

The market moves. Your verdict should too.

Already building? Turn on Watch after your Founder Verdict and the research runs again every month. You get a dated new version, the score change, and an email when new competitors, funding or demand shifts turn up. Cancel any time, in one click.

2 SepVersion 1 61First Founder Verdict
2 OctVersion 2 66(+5)New competitor found · Search interest moved from Flat to Rising
2 NovVersion 3 64(-2)A rival raised a seed round · No change in demand
Illustrative sample

Working in Claude or Cursor? Ask FounderOS from inside your agent.

See the MCP server

Questions founders ask

What are the five questions?

What you want to build, who it’s for, how it makes money, where you’re starting, and the one thing that could kill it. Each takes a sentence or a tap; anything you don’t know yet you can skip.

What’s in the free Quick Read?

A score out of 100 against the 70 go line, a one-line verdict, one market-size figure and your two closest competitors from a short live search, and the two or three things most likely to stop you. Each figure says where it came from.

What does the Founder Verdict add?

The full research: agents search the live web for your market, demand, competitors, money and rules, check each other, and write five chapters. Every figure is tagged from a source, calculated or assumption, and links to its source.

How is the score worked out?

Six parts — demand, market, competition, model, risk and founder fit — are each scored out of 100 and weighted. The weights are shown on every Founder Verdict, so you can see exactly how the total adds up. 70 is the go line.

What if the research fails?

You’re refunded automatically, in full. If it fails, the page tells you so plainly, and your answers are kept so you can try again.

Does it work for physical products?

Yes. Physical ideas get a sourcing agent that looks at suppliers, minimum orders, unit and landed cost, lead times and recalls, plus a licences checklist for where you’re starting.

How does Watch work, and how do I stop it?

After a Founder Verdict you can turn on Watch for that idea. The research runs again monthly and you get a new dated version and an email with what moved. Cancel from your dashboard in one click; you won’t be charged again.

What happens to my idea?

It’s sent to Claude to do the research and write your Quick Read and Founder Verdict. We don’t sell it, use it for ads, or opt in to model training.

Five questions. Then you'll know.

The Quick Read is free and takes about a minute. No sign-in to start.