Up and running
in 5 minutes.

You need an AI coding agent installed on your machine. Flatland works with:

You also need Node.js installed (any recent version). That's it.

Subscribe at flatlandfi.com. Your API key arrives by email within seconds. Keep it — you'll need it in the next step.

The key looks like: fl_live_xxxxxxxxxxxxxxxxxxxx

Run this command in your terminal, replacing <your-key> with the key from your email:

Configures Claude Code, Cursor, or Windsurf automatically based on what's installed.

Open your agent. Use this prompt to build your first model:

You can describe your own business instead — the more specific you are, the more accurate the model. Revenue, costs, growth rate, margins. Whatever you know.

Your agent calls Flatland's tools to build and validate the model:

• Initializes a new model with typed drivers
• Resolves the dependency graph — which outputs depend on which assumptions
• Compiles: evaluates every computed value in order
• Runs your assertions — flags anything that violates your conditions
• Returns the compiled results: revenue, gross profit, EBITDA across all three years

Once your base model is compiled, ask your agent to go further:

Just describe what you want in plain language. Your agent handles the tool calls.