From zero to your first company

Find your next big idea. Validate it with data. Build it with AI.

FirstStone researches real markets and opportunities to find businesses with potential, check whether they are worth pursuing and turn the best idea into a working website, app, SaaS or digital product.

Even if today you have no idea and can't code.

Find my next big idea See how it works

First opportunity free · No card required · AI Studio on the Construye plan

You don't need the perfect idea

You just need to want to build something big.

I don't have any ideas

You want to start a business, but you don't know what to build or where to begin.

FirstStone researches markets, trends and problems that are still poorly solved to find opportunities with real potential.

Result: you discover ideas you probably would never have found on your own.

I have an idea, but I don't know if it's good

You may have found a great opportunity. Or you may be about to invest months in something the market doesn't need.

FirstStone analyzes your idea, tries to tear it down and looks for evidence to recommend whether you should build it, improve it or discard it.

Result: you stop relying only on your intuition to make an important decision.

I have a skill or a resource

Maybe you know how to sell, design, code, create content or launch products. You may also have an audience, contacts, capital, a database or even a physical space you don't know how to make the most of.

FirstStone turns what you already have into business opportunities.

Result: you find a smarter way to monetize your advantages.

Any AI can give you ten ideas in seconds

FirstStone looks for proof they could work.

An idea can sound revolutionary and still be a bad business.

That's why FirstStone doesn't just generate answers with artificial intelligence. It contrasts every opportunity against external signals, market data and specialized sources selected for each type of business.

Demand

It analyzes whether real interest exists around the problem, the solution or the category.

Competition

It studies the existing alternatives, their positioning and how saturated the market is.

Trends

It detects shifts in behavior, technologies and categories that are starting to gain relevance.

Opportunity

It looks for important problems that current solutions still solve poorly.

Feasibility

It contrasts the potential of the business with your skills, resources, experience, contacts, time and budget.

Because a local business, a B2B SaaS and a consumer app cannot be analyzed with the same criteria.

You don't get an AI-generated guess. You get an opportunity that has been researched, challenged and backed by evidence.

Discover · Validate · Build

From not knowing what to build to having a real product.

Discover

FirstStone finds opportunities with potential starting from scratch, from an idea you already have or from a skill or resource you want to leverage.

You get: a selection of prioritized opportunities and the reasoning behind each one.

Validate

FirstStone puts every opportunity through a critical process to detect risks, weaknesses and signals that can confirm or question its potential.

Some ideas move forward. Others improve. And others are discarded before they make you waste time and money.

You get: a clear decision on what is worth building.

Build

FirstStone turns the chosen opportunity into the complete definition of the business and the product.

Then, AI Studio uses all that information to develop it and get it ready to reach the market.

You get: an idea turned into a working product, without having to run the technical process.

Dashboard screenshot: the Incubator mentor guiding an idea step by step

Find my next big idea

And once we find the idea…

You connect the essentials. AI Studio does the rest.

Other AI coding tools still force you to know exactly what you want to build, write prompts, make technical decisions and fix the product step by step.

AI Studio starts with a decisive advantage:

It already knows your whole company.

It knows who your customer is, what problem you solve, how the product should work, what features it needs and what technology it should use.

That's why it can build:

Guided setup

AI Studio only asks you for the data needed to get the project up and running. If it needs GitHub, an API or a credential, it explains what it is, where to get it and how to connect it.

Building on autopilot

AI Studio defines the architecture, designs the experience, develops the product, connects the necessary services and prepares its deployment. It also checks the main flows, runs functional testing and reviews cybersecurity before delivering it.

Because it's not enough for the product to look finished. It has to work, be tested and be born on a solid technical foundation.

No starting from scratch

You don't need to explain your idea again or steer development through hundreds of prompts. All the previous research, validation and documentation is used directly to build.

The product is yours

The code is created inside your repository so you keep control over what has been built and can keep developing it in the future.

Without coding.

Without steering hundreds of prompts.

Without worrying about technical decisions.

Dashboard screenshot: AI Studio proposing what to build for a validated idea

Build my idea with AI Studio

The idea is just the beginning

FirstStone can keep growing with you.

Once the product is built, you can continue inside the ecosystem to gain traction, make better decisions and prepare your first investment rounds.

The most promising projects will be able to advance to FirstStone Accelerator and qualify to reach FirstStone Capital, where we connect selected opportunities with the right funds and investors for their next stage.

The goal is not to hand you an idea. It is to help you turn it into a company.

Start free

Find the opportunity first. Decide later how far you want to take it.

Explora

0 €

To discover which business could fit you.

✓A diagnosis of your starting point.
✓First personalized opportunity.
✓Initial analysis.
✓Access to the mentor.
✓100 welcome credits.

Find my first opportunity

Recommended

Funda

29 €/mo

To research and validate before building.

✓Everything included in Explora.
✓New personalized opportunities.
✓Critical idea analysis.
✓Research and validation.
✓Complete business definition.
✓900 credits per month.

Validate my next big idea

Construye

59 €/mo

To turn a validated opportunity into a real product.

✓Everything included in Funda.
✓Access to AI Studio.
✓Technical product definition.
✓Design and development.
✓Functional testing.
✓Cybersecurity review.
✓Guided setup and deployment.
✓Code inside your repository.
✓1,800 credits per month.

Build my company

Credit consumption depends on the analysis performed and the complexity of the product built.

Your next company could start with an idea you don't have yet

Find an opportunity worth building.

FirstStone discovers businesses with potential, contrasts them with real data and turns the best opportunity into a working product.

Even if today all you have is the urge to build.

Find my next big idea See an idea built with FirstStone

First opportunity free · No card required · No coding skills needed

Frequently asked questions

What happens if I don't have any ideas?

That is one of Incubator's main starting points. FirstStone researches opportunities and uses the information about your interests, experience, resources and goals to find businesses you can develop.

Can I use it to validate an idea I already have?

Yes. FirstStone will analyze its potential, competition, risks and main assumptions to recommend whether you should build it, modify it or discard it.

Can I start from a skill or a resource?

Yes. You can start from your professional experience, a skill, an audience, contacts, capital, a database, a physical space or another asset you want to turn into a business.

How is it different from asking an AI for ideas?

A general AI can generate possibilities based on its knowledge and your instructions. FirstStone combines artificial intelligence, external research, market data and a structured process of analysis, validation and building.

Can FirstStone guarantee that an idea will work?

No. Nobody can guarantee the success of a business before launching it. FirstStone reduces uncertainty, detects risks and looks for evidence to help you make a much better informed decision.

Do I need to know how to code to use AI Studio?

No. AI Studio defines the necessary technology, guides you through connecting credentials or external services and builds the product without you having to code or steer development step by step.

What happens after the product is built?

You can continue in FirstStone Accelerator to gain traction, work with AI Mentor, develop new tools and prepare or execute an investment round.

What if my business doesn't bill in euros?

Your idea's numbers (prices, costs and forecasts) are calculated in your market's currency. It's inferred from the country you're targeting and you can change it whenever you like, including guaraníes, pesos or any Latin American currency.

Can I cancel whenever I want? Are there refunds?

No lock-in. Cancel whenever you want from Billing: you won't be charged again and you keep access until the end of the paid period. You can also upgrade or downgrade at any time. What you've paid isn't refunded once the period has started, unless the law says otherwise: if you sign up as a consumer in the EU, you have 14 days to withdraw.

How do credits work?

Every paid plan comes with a credit allowance that renews each month and doesn't roll over. If you run out, nothing stops: you add a top-up pack, which never expires, or upgrade. And if an AI action fails, the credits go back to your balance.

Is my data used to train the AI?

No. The AI runs on commercial providers, such as Anthropic and Google, whose terms don't allow your content to be used to train their models. What the AI proposes are suggestions: you review them and decide what to use.

Which languages does it work in?

The platform is available in Spanish and English, and AI Mentor replies in the language you write to it in.