Open Library
Search millions of books, find editions, browse by subject, and get cover images from Open Library.
Connects to Open Library to search books and authors, fetch specific editions with ISBNs and metadata, browse by subject, search inside scanned book text, and retrieve cover images. Muse can help you find books, explore an author's works, and discover reading recommendations.
Try asking Muse: "Find all editions of 1984 by George Orwell and show me the cover of the most recent one."
Source: Found in the official MCP Registry (io.github.cyanheads/openlibrary-mcp-server) · First listed September 25, 2026
Last 24 hours
Each bar is one check, every 15 minutes. Green means it answered. Last checked 2 h ago.
Is it safe to connect?
What Muse can see: It does not ask you to sign in, so it cannot see your accounts. It only sees what Muse sends it from your request.
Before it acts: Read what Muse plans to do before you approve it, and remove the app from Muse when you stop using it.
musedirectory.ai is not part of Meta. More about how Muse handles your information
How to add it to Muse
Not in Muse's Connectors list yet, but Muse can still use it. Copy the request below and paste it into Muse. Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
https://openlibrary.caseyjhand.com/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
Technical details: safety screening, tools, response time and recent checks
Response time at the last check: 1499ms. Worked in 100% of checks over 30 days.
Screening · September 25, 2026
Screened, no issues found
Screening looks for known threats and hidden instructions at the time of the check, and runs again weekly and whenever the tool list changes. It cannot see the server's code, so only connect what you need and review what Muse asks to do. How screening works.
Tools · 10
openlibrary_search_booksFull-text book search across Open Library works. Supports field filters (title, author, subject, publisher, ISBN, language) and returns work-level records with edition counts, cover IDs, and reading availability. Use query for general search or combine specific field filters. Resopenlibrary_search_insideSearch the full text of books scanned by the Internet Archive — the "which book contains this passage?" lookup that the metadata tools cannot answer. Quote a phrase for an exact-phrase match; bare terms match anywhere in the text. Each result is an Internet Archive item with the openlibrary_get_workFetch a work by Open Library Work ID (OL…W). Returns title, description, subjects, cover IDs, and linked author IDs for follow-up lookups. Works represent the abstract book concept independent of any specific edition. A merged work ID resolves to the work it was merged into. To ropenlibrary_get_editionsList editions of a work — different publishers, languages, formats, and print runs. Returns ISBNs, publisher, language, page count, and edition OLIDs. Use after openlibrary_get_work or openlibrary_search_books to find a specific printing. A merged work ID resolves to the work it openlibrary_get_editionResolve one or more editions by identifier: ISBN-10, ISBN-13, OCLC, LCCN, or Open Library Edition ID (OL…M). Every identifier in a call shares one id_type — pass id_type "isbn" for both ISBN-10 and ISBN-13. Up to 50 identifiers resolve in a single upstream request, so a bibliograopenlibrary_search_authorsSearch Open Library authors by name. Returns Open Library Author IDs, names, birth/death dates, top works, and subject associations. Use author IDs for openlibrary_get_author (bio, remote IDs) or openlibrary_get_author_works (list of works).openlibrary_get_authorFetch author detail by Open Library Author ID (OL…A). Returns bio, birth/death dates, photo IDs, and linked identifiers from Wikidata, VIAF, ISNI, Goodreads, and LibraryThing. Use openlibrary_search_authors to find an author ID first.openlibrary_get_author_worksList works by an author. Returns titles, cover IDs, and work OLIDs for drilling into editions or details. Use openlibrary_get_author for author bio and details, or openlibrary_get_editions to explore specific printings.openlibrary_get_subjectBrowse works by subject. Returns matching works with edition counts and cover IDs, plus the total work count for the subject. Case and spacing are normalized before lookup, so "Science Fiction" and "science_fiction" are the same request. Subject tags are user-contributed and the openlibrary_get_cover_urlResolve a cover image URL for a book or author photo. Returns a direct HTTPS URL in the requested size (S/M/L). The Covers API always returns HTTP 200 — missing covers return a 1×1 placeholder GIF, not a 404 — so the identifier format is validated locally first: "id" must be numeRecent checks
Link
https://openlibrary.caseyjhand.com/mcpQuestions about Open Library in Muse
How do I connect Open Library to Muse?
Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Open Library to help me. It is a free service with an MCP server at https://openlibrary.caseyjhand.com/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
Is Open Library working right now?
At the last check (September 28, 2026, 07:15 UTC) the endpoint was working, answering in 1499ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
Is Open Library safe to connect to Muse?
It was screened on September 25, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
What can Open Library do in Muse?
It exposes 10 tools, including openlibrary_search_books, openlibrary_search_inside, openlibrary_get_work, openlibrary_get_editions. For example, you could ask Muse: "Find all editions of 1984 by George Orwell and show me the cover of the most recent one."
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This listing was added from public sources (Found in the official MCP Registry (io.github.cyanheads/openlibrary-mcp-server)). If you build Open Library, claim it to correct the details and get your badge.
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