What is Expand.ai?
Expand.ai (YC S24) turns websites into type-safe APIs: it auto-generates a schema from a target site, then uses AI to pull structured data from it. The company says the output is traceable and resistant to hallucination, that it handles JS-rendered pages and bot protection, and that it produces semantic markdown for LLM use. It's a two-person team in San Francisco, founded by Tim Suchanek (a former founding engineer at Prisma and founder of Stellate), and says it has processed 22 million pages so far.
Our verdict
The traceability-focused schema-generation approach is a distinct take on AI extraction, and the founder's Prisma and Stellate background is a credible signal. But the waitlist-gated homepage, 404 pricing page, and absent public docs make this read as early access, not something a team can start using today.
Categories:
AI extraction tools sit between a raw page and your database: you describe the fields you want, and a model returns structured JSON or LLM-ready markdown without hand-written selectors. They hold up well when page layouts change often, at the cost of per-request model spend and the occasional wrong field.
