# Foundry > The AI-powered validation workspace where founders and AI agents collaborate to turn assumptions into evidence-backed decisions. ## What is Foundry? Foundry is a validation workspace designed for startup founders. It provides a structured workflow to move from assumptions to evidence before building a product. Founders use Foundry to map their business model, extract and prioritize hypotheses, conduct customer interviews, and synthesize research with AI assistance. Foundry integrates directly with Claude via MCP (Model Context Protocol) through the Cofounder plugin. This allows Claude to brainstorm canvas cards, generate hypotheses, write interview questions, and synthesize interview transcripts inside the workspace. ## Who is Foundry for? - Early-stage startup founders validating a new idea - Solo founders who need AI to augment their validation process - Product teams running continuous discovery - Anyone using Lean Canvas or similar frameworks for business model design ## Core Features ### Lean Canvas Builder Build and iterate on your lean canvas with AI assistance. Each canvas card can be broken down into testable hypotheses. The canvas is a living document that evolves as you gather evidence. ### Hypothesis Extraction Foundry automatically generates hypotheses from your canvas cards and scores them by risk (impact vs. certainty). This helps founders focus on validating the riskiest assumptions first. ### Interview Guide Generation Hypotheses generate targeted interview questions. Founders walk into every customer discovery call knowing exactly what to validate, avoiding leading questions and confirmation bias. ### AI-Powered Synthesis Drop in interview transcripts and notes. Claude analyzes them against your hypotheses, identifying what validates, what invalidates, and where gaps remain. This replaces hours of manual synthesis work. ### Validation Tracking Track the status of each hypothesis (validated, invalidated, needs more data) with confidence scores based on interview evidence. See your validation progress at a glance. ### Evidence-Backed Roadmap Translate validated hypotheses into roadmap items. Every feature decision is backed by real customer evidence, not gut instinct. ### MCP Integration Connect Claude to Foundry via MCP and the Cofounder plugin. Claude operates as a strategic thinking partner inside your workspace, not in a separate chat window. ## The Validation Stack Foundry is built around the Validation Stack, a mental model with five layers: 1. **Assumptions**: Map your riskiest assumptions using Lean Canvas 2. **Hypotheses**: Convert assumptions into testable, measurable statements 3. **Evidence**: Collect structured evidence through customer interviews and research 4. **Patterns**: Synthesize evidence to find themes across multiple data points 5. **Conviction**: Make informed decisions to double down, pivot, or kill ideas ## Technology - Web application built with Ruby on Rails - Real-time collaboration support - MCP server for Claude integration - Cofounder plugin for AI-native workflows ## Related Products ### Foundry Kit For founders who have validated their idea and are ready to build, Foundry Kit provides a production-grade Rails foundation for AI-native MVPs. Learn more at https://kit.withfoundry.dev. ## Pricing Foundry is free during beta. Beta users will receive early adopter pricing when paid plans launch. There will always be a free tier. ## Links - Website: https://withfoundry.dev - App: https://app.withfoundry.dev - Blog: https://withfoundry.dev/blog - Foundry Kit: https://kit.withfoundry.dev - Terms: https://withfoundry.dev/terms - Privacy: https://withfoundry.dev/privacy ## Contact - Email: hello@withfoundry.dev - LinkedIn: https://linkedin.com/company/withfoundry - X: https://x.com/withfoundry