Hi Product Hunt, I'm Amir. SheetRelay makes a Google Sheet an API: real REST and MCP endpoints, with keys that grant exactly what each caller should see, down to single columns and rows. It is built for two problems that look alike but are not. The spreadsheets you already have. The client list, the inventory, the price table: they live in sheets because sheets are where your team actually edits things. SheetRelay lets every tool, page and AI that needs that data get its own key to exactly its slice: these columns and not those, this tab read-only, that one append-only, this row filter. Share a slice, not the sheet. The things you have not built a backend for. A menu page, a waitlist, a game's leaderboard, a blog, an internal tracker: they need a database, and a spreadsheet is a great one when the people maintaining it are not developers. Connect SheetRelay to Claude or any MCP agent, describe what you need, and the agent designs the database, creates it as a real sheet in your own Drive, and hands you a live API with keys and docs. The sheet stays a sheet you can edit; everything pointed at the API follows it. Boundaries we think matter: an agent never sees your row data, never deletes anything, and never touches a secret key (those you approve in the dashboard, shown once, to you).

SheetRelay

Tell your agent what you need, get a database with an API

Tell your agent what you need, get a database with an API