Search books, authors and series, get recommendations, and manage your own reading shelves.
com.siftivo/siftivo is a remote MCP server published at api.siftivo.com. It has been probed 6 times since 9/12/2026. It answered in 6 of them (100.0%), a near-uninterrupted record. Median response time is 978 ms, a delay an agent will notice. It offers a narrow, focused set of 12 tools. On the protocol side it still runs 2025-11-25 and has not moved to the newer spec.
Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.
get_reading_index — Description does not explain how the 'week' parameter affects results.add_to_library — Parameter 'progress' lacks clarification on expected units (e.g., percentage or page number).recommend_from_description — No explicit mention of handling invalid or ambiguous user descriptions.Risk: low
tools/list structure, inputSchema validity, and a functional smoke test — the components of the 0-100 score.
Tools the server advertised in the latest measurement — measured, not catalog-claimed.
search_booksKeyword search over the Siftivo book catalog. Matches titles, authors, and descriptions. Returns works with the ids other Siftivo tools accept.
querystringrequiredlimitintegerisFictionbooleanget_bookFull detail for one book: synopsis, authors, series position, genres, and its page on siftivo.com. Accepts a work id, an edition id, or a slug.
idstringrequiredwhat_to_read_nextGiven one book, what to read after it: the next books in its series, more by the same author, and books that read like it. This is the same set the book page on siftivo.com shows.
workIdstringrequiredget_authorAn author, their biography, and the works Siftivo holds for them. Accepts an author id or slug.
idstringrequiredget_seriesA series and its works in reading order. Accepts a series id or slug.
idstringrequiredget_reading_indexThe weekly Siftivo Reading Index: the fiction and nonfiction books moving most in cultural circulation this week, ranked.
weekstringrecommend_from_descriptionDescribe what someone is in the mood for, in their own words, and get books that match. Use this for a theme, subject or feeling ("books about grief", "cozy mysteries set in Cornwall"). Use search_books instead when you already know the title or author.
descriptionstringrequiredlimitintegerisFictionbooleanrecommend_from_titlesGive Siftivo a few books someone liked, by title, and get books like them. Titles are resolved against the catalog first; anything that does not resolve is reported back rather than guessed at.
titlesarrayrequiredlimitintegerisFictionbooleanget_my_libraryThe signed-in reader's own Siftivo library: what they want to read, are reading, finished, or set down, with their ratings.
statusstringadd_to_libraryPut a book on one of the signed-in reader's shelves, move it to a different shelf, rate it, or record how far through it they are. Pass a workId from search_books, get_book, or recommend_from_titles. "Finished it, four stars" is one call with readingStatus FINISHED and rating 4.
workIdstringrequiredreadingStatusstringratingintegerprogressintegernotesstringget_my_bookWhether the signed-in reader has this book on a shelf, and if so which shelf, their rating and how far through they are. Answers "have I read this?" without pulling the whole library.
workIdstringrequiredremove_from_libraryTake a book off the signed-in reader's shelves entirely, discarding their rating and progress for it. To move it to a different shelf instead, call add_to_library with a new readingStatus.
workIdstringrequiredDerived by comparing consecutive probes — changes in era, protocol version, build and reachability.
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| Run | Era | Modern | ms | Legacy | ms | Versions |
|---|---|---|---|---|---|---|
| 2026-09-13 01:33:33 | Legacy | 400 | 991 | 200 | 993 | 2025-11-25 |
| 2026-09-12 23:31:36 | Legacy | 400 | 982 | 200 | 978 | 2025-11-25 |
| 2026-09-12 21:29:15 | Legacy | 400 | 1669 | 200 | 1715 | 2025-11-25 |
| 2026-09-12 19:27:29 | Legacy | 400 | 724 | 200 | 727 | 2025-11-25 |
| 2026-09-12 17:24:09 | Legacy | 400 | 667 | 200 | 663 | 2025-11-25 |
| 2026-09-12 15:21:42 | Legacy | 400 | 946 | 200 | 932 | 2025-11-25 |
Each block is one measurement round. Green: working response. Amber: responded but the server was returning errors (5xx). Red: no response at all.
Each cell is one probe run. Faded cells are incomplete probes — one leg did not answer, so the era is inconclusive.
The two probe legs separately: modern server/discover and legacy initialize.
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