Siftivo for agents

Siftivo is a book discovery product for readers who want to finish what they start. Everything the site can do with the catalog, an agent can do too: the same search, the same recommendations, the same weekly index.

The catalog is open. No account, no key, no sign-up. Reading or changing a person's own library is the only thing that needs permission, and that permission is theirs to give.

Connect

Add this as a custom connector in Claude, or as an MCP server anywhere else:

https://api.siftivo.com/mcp

It speaks Streamable HTTP. In Claude, go to Settings, then Connectors, then Add custom connector, and paste that URL. In Claude Code or Cursor, add it as a remote MCP server.

What it can do

Without an account

search_books — Search the catalog by title, author or subject.
get_book — Full detail for one book: synopsis, authors, series position, genres.
what_to_read_next — Given a book, the next in its series, more by the author, and books that read like it.
get_author — An author, their biography, and the works Siftivo holds for them.
get_series — A series and its works in reading order.
get_reading_index — The weekly Siftivo Reading Index: the books moving most in cultural circulation.
recommend_from_titles — Name a few books someone liked; get books like them.

After you link your account

get_my_library — The reader's own shelves and ratings.
add_to_library — Put a book on one of their shelves, or move it between shelves.

Ask for one of these without linking and Siftivo replies with a request to connect, not an error. Your agent shows you a consent screen; you approve it or you don't. Nothing is read or written before that.

Try it

What should I read after Piranesi?
What is on the Siftivo Reading Index this week?
I loved The Secret History and Bunny. Find me something similar, nothing over 400 pages.

What linking grants

Linking gives the agent permission to read your shelves and ratings, and to add a book to a shelf. That is the whole surface. It cannot delete anything, cannot read your email beyond the address you authorized, and cannot see other readers' libraries. You can revoke it at any time from your Siftivo account settings, and revoking takes effect immediately.

What Siftivo records about agent traffic is which tool was called, by which client, how long it took, and whether it worked. That is the same thing any server logs.

Also available over HTTP

The catalog tools answer as a plain REST API, described by an OpenAPI 3.1 document generated from the same definitions the MCP tools come from. There is a server card too.

Citing Siftivo

Every book has a stable canonical URL: siftivo.com/books/<title-slug>-<id>. It does not change when a different edition becomes the preferred one, so it is safe to cite and safe to store.