Fine Structure has a free plan and paid subscriptions. Current plan details and prices load on this page.
Signing up is free with no credit card. The free tier includes daily AI generations, so you can build, preview, and publish a real app before deciding to upgrade.
Paid plans add higher daily limits, more AI credits, advanced features such as AI agent teams and integrations at larger scale, and priority support. Billing is monthly and you can cancel anytime.
Developers and AI agents: API and MCP access is included; create scoped tokens at finestructure.ai/api-keys. See the OpenAPI spec and the quick start.