Tool directory
AI
Claude
The large language model that acts as your product thinking partner and coding collaborator throughout the framework.
Visit ClaudeFree tier available · Pro from ~US$20/mo
Why we recommend it
Strong reasoning for product specs, database design and code — and it pairs directly with Cursor.
Getting started
- Create a free account at claude.ai
- Start with the MVP product spec prompt from the prompt library
- Keep one long-running conversation per major decision (spec, schema, architecture)
- Paste real context (your spec, schema, code) rather than describing it from memory
Alternatives
ChatGPT, Gemini are reasonable substitutes if you have a strong reason to use them — the framework doesn't lock you into any single tool.