The core idea is that pricing and payment happen inside the request using Coinbase’s x402 flow. No accounts, no onboarding steps, no checkout. A buyer signs the request, pays, and receives the data in one call. It behaves more like an authenticated API request than a marketplace.
Content is organized into feeds and entries. A feed is an ongoing source of data. An entry is a single item such as text, a file, a dataset, or any other type of content. Each entry can have its own price, so one-off pieces of information work just as well as larger collections.
Data is stored using private IPFS, which provides a verifiable CID for each entry while keeping the content private.
Docs: https://docs.grapevine.fyi